Add PUT method to http client

fix ws client
refactor: Move OrderServiceServer to sparkd
2024-12-04 20:22:38 +00:00 · 2024-12-04 20:22:13 +00:00 · 2024-11-30 17:30:10 +00:00 · 2024-11-29 15:05:54 +00:00 · 2024-11-29 15:05:54 +00:00 · 2024-11-29 15:05:54 +00:00
3021 changed files with 58018 additions and 125633 deletions
@@ -9,7 +9,7 @@
      ]
    },
    "fable": {
-      "version": "4.24.0",
+      "version": "4.0.6",
      "commands": [
        "fable"
      ]
@@ -55,19 +55,17 @@ RUN \
   clangd-$clang_major

 # CMake
-RUN set -eux \
-  && apt-get update \
-  && apt-get install -y --no-install-recommends ca-certificates curl gpg \
-  && curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc \
-    | gpg --dearmor -o /usr/share/keyrings/kitware-archive-keyring.gpg \
-  && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
-    > /etc/apt/sources.list.d/kitware.list \
-  && apt-get update \
-  && apt-get install -y --no-install-recommends cmake \
-  && rm -rf /var/lib/apt/lists/*
+RUN \
+   curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
+   | gpg --dearmor - \
+   | tee /usr/share/keyrings/kitware-archive-keyring.gpg > /dev/null \
+   && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
+   | tee /etc/apt/sources.list.d/kitware.list > /dev/null \
+   && apt-get update \
+   && apt-get install -y cmake

 # Dotnet
-RUN apt-get update && apt-get install -y dotnet8
+RUN apt-get update && apt-get install -y dotnet7

 # Node
 ARG node_major=18
@@ -82,14 +80,9 @@ RUN mkdir -p /etc/apt/keyrings \
 # Emumba (deps)
 RUN apt-get update && apt-get -y install rapidjson-dev
 # Emumba
-ARG EMUMBA_DERIBIT_CONNECTOR_DEB_URL="https://api.bitbucket.org/2.0/repositories/bluetradesys/spark/downloads/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb"
-RUN --mount=type=secret,id=bitbucket_access_token \
-  set -eux \
-    && apt-get update \
-    && TOKEN="$(cat /run/secrets/bitbucket_access_token)" \
-    && curl -fL -H "Authorization: Bearer ${TOKEN}" $EMUMBA_DERIBIT_CONNECTOR_DEB_URL -o /tmp/emumba-deribit-connector.deb \
-    && apt-get install -y /tmp/emumba-deribit-connector.deb \
-    && rm -f /tmp/emumba-deribit-connector.deb
+COPY emumba /emumba
+RUN dpkg -i /emumba/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb \
+    && rm -r /emumba

 # Pcap
 RUN apt-get update && apt-get install -y libpcap0.8-dev
@@ -97,18 +90,6 @@ RUN apt-get update && apt-get install -y libpcap0.8-dev
 # Databento (deps)
 RUN apt-get update && apt-get -y install libzstd-dev

-# Rakurai
-ARG RAKURAI_DEB_URL="https://api.bitbucket.org/2.0/repositories/bluetradesys/spark/downloads/rakurai-dex-connector_0.0.5_amd64.deb"
-RUN --mount=type=secret,id=bitbucket_access_token \
-  set -eux \
-    && apt-get update \
-    && TOKEN="$(cat /run/secrets/bitbucket_access_token)" \
-    && curl -fL -H "Authorization: Bearer ${TOKEN}" $RAKURAI_DEB_URL -o /tmp/rakurai.deb \
-    # Need --force-overwrite because rakuirai and emumba-deribit-connector both include the same
-    # spdlog headers.
-    && apt-get install -y -o Dpkg::Options::="--force-overwrite" /tmp/rakurai.deb \
-    && rm -f /tmp/rakuirai.deb
-
 # Docker in Docker
 RUN apt-get update && apt-get install -y \
    docker.io \
@@ -148,3 +129,5 @@ RUN \
   -G sudo \
   --password "$(openssl passwd -1 "$docker_pass")" \
   "$docker_user"
+
+RUN usermod -aG docker "$docker_user"
@@ -1,16 +1,15 @@
 {
-  "build": {
-    "dockerfile": "../docker/images/bluetradingsystems/linux_dotnet8_dev/Dockerfile",
-    "options": [
-      "--secret",
-      "id=bitbucket_access_token,src=${localWorkspaceFolder}/.secrets/bitbucket_access_token.txt"
-    ]
-  },
+  "dockerFile": "Dockerfile",
+  // Creates local dir to mount to HOME in docker 
+  "initializeCommand": "mkdir -p ${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId}",
  "hostRequirements": {
-    "memory": "8gb",
-    "storage": "10gb"
+    "memory": "4gb",
+    "storage": "6gb"
  },
+  "postCreateCommand": "/home/bts/spark/docker/sparkd/dev/devcontainer_post_create.sh",
  "containerUser": "bts",
+  "workspaceMount": "source=${localWorkspaceFolder},target=/home/bts/spark,type=bind",
+  "workspaceFolder": "/home/bts/spark",
  "updateRemoteUserUID": true,
  "shutdownAction": "none",
  // Note: If running multiple containers on the same host, each must use a
@@ -18,20 +17,26 @@
  // example, if 8000-8003 is taken, go with 9000-9003, then 10000-10003, etc.
  "runArgs": [
    "--shm-size",
-    "8gb"
+    "2gb",
+    "--network",
+    "host"
  ],
  "mounts": [
+    "source=${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId},target=/home/bts,type=bind",
    "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind"
  ],
  "customizations": {
    "vscode": {
+      "settings": {
+        "clangd.arguments": [
+          "--compile-commands-dir=${workspaceFolder}/build/clang/debug"
+        ]
+      },
      "extensions": [
        "eamodio.gitlens",
        "llvm-vs-code-extensions.vscode-clangd",
-        "ms-python.python",
        "ms-vscode.cmake-tools",
-        "ms-vscode.cpptools",
-        "xaver.clang-format"
+        "ms-vscode.cpptools"
      ]
    }
  }
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+this_dir="$(realpath "$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")")"
+sudo dpkg -i "$this_dir/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb"
@@ -7,10 +7,10 @@
 #   We use Docker Compose to build images and launch containers for various services
 #   that make up our software suite:
 #     - sparkd
-#     - TODO: pubsub
-#     - TODO: md-publisher
-#     - TODO: webapp (DSQA on the web)
-#     - TODO: api-server (websocket based)
+#     - pubsub
+#     - md-publisher
+#     - webapp (DSQA on the web)
+#     - api-server (websocket based)
 #   From inside a devcontainer, you can launch all services in separate containers
 #   on your machine by running:
 #
@@ -29,36 +29,53 @@
 #     tools/deploy.sh --help
 #

-### Host/Runtime ###
-TZ=Etc/UTC
-
 ### Sparkd ###
 # The internal image for sparkd to use. For more info, view:
-#   src/server/sparkd/Dockerfile
+#   src/app_sparkd/Dockerfile
 SPARKD__IMAGE=sparkd
-# The config dir for this service to use
-SPARKD__CONFIG_DIR=src/app_sparkd/configurations/dev
-# Mount a specific volume or dir to "~/sparkdata/data" inside the docker.
-# Defaults to a volume named "sparkd_<config_port>" (e.g., sparkd_8000).
-# SPARKD__DATA_DIR=/home/bts/sparkdata/data
-# Mount volume or dir to "/md_recording" inside the docker. Defaults to volume
-# "sparkd_md_recording_<config_port>" (e.g., sparkd_md_recording_8000).
-# SPARKD__MD_RECORDING_DIR=/home/bts/md_recording
+# The 'spark.conf' for this service to use
+SPARKD__CONF_FILE=src/app_sparkd/spark.conf
+# To run replay md, put recorded md files in SPARKD__MD_RECORDING_DIR, and use:
+#   SPARKD__IMAGE=sparkd_md_replay
+#   SPARKD__CONF_FILE=src/app_sparkd/spark.local.conf
+# (configure which md to replay in the new SPARKD__CONF_FILE)
+SPARKD__MD_RECORDING_DIR=.md_recording
 SPARKD__SOURCE_DIR=install/sparkd-release-gcc
-SPARKD__RUNTIME_CONF_DIR=/home/ubuntu/8000/sparkdata/conf/
 SPARKD__CONFIG_PORT=8000
 SPARKD__QUICKBUS_PORT=8001
 SPARKD__SIM_FIX_PORT=8002
-SPARKD__SHM_SIZE=4gb
-SPARKD__PYTHON_REQUIREMENTS=requirements.txt
-SPARKD__SPARKD_ENTRYPOINT=src/app_sparkd/sparkd-entrypoint.sh
-SPARKD__MAIN_ENTRYPOINT=./sparkd-entrypoint.sh

-### PubSubServer ###
-PUBSUB__CONFIG_DIR=src/DataStreamSuite/PubSubServer/Configurations/Development
-PUBSUB__SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
+### Pubsub ###
+# The 'spark.conf' for this service to use
+PUBSUB__CONF_FILE=src/DataStreamSuite/PubSubServer/spark.conf
+PUBSUB__CS_SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
+PUBSUB__CPP_SOURCE_DIR=install/data-stream-suite-linux
+# The appsettings to load at runtime. Expects a file named:
+#   src/DataStreamSuite/PubSub/appsettings.${PUBSUB__DOTNET_ENVIRONMENT}.json
+PUBSUB__DOTNET_ENVIRONMENT=Staging

-### MdPublisher ###
-MD_PUBLISHER__CONFIG_DIR=src/DataStreamSuite/DataStreamPublisher/Configurations/ReplayMarketData
-MD_PUBLISHER__SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
-# TODO: add config for other services (pubsub, md-publisher, webapp, api-server, etc.)
+### Md Publisher ###
+# The 'spark.conf' for this service to use
+MD_PUBLISHER__CONF_FILE=src/DataStreamSuite/DataStreamPublisher/spark.conf
+MD_PUBLISHER__SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
+# Determines which appsettings to load at runtime. Expects a file named:
+#   src/DataStreamSuite/DataStreamPublisher/appsettings.${MD_PUBLISHER__DOTNET_ENVIRONMENT}.json
+MD_PUBLISHER__DOTNET_ENVIRONMENT=MarketData
+
+### Webapp (DSQA on the web) ###
+# The 'spark.conf' for this service to use
+WEBAPP__CONF_FILE=src/client/spark_api_server/spark.conf
+WEBAPP__SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
+WEBAPP__WEB_ROOT=build/Bts.DataStreamWebApp.Client/production/dist
+# Determines which appsettings to load at runtime. Expects a file named:
+#   src/DataStreamSuite/Bts.DataStreamWebApp.Server/appsettings.${WEBAPP__ASPNETCORE_ENVIRONMENT}.json
+WEBAPP__ASPNETCORE_ENVIRONMENT=Staging
+
+### Api Server ###
+# The 'spark.conf' for this service to use
+API_SERVER__CONF_FILE=src/client/spark_api_server/spark.conf
+API_SERVER__CS_SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
+API_SERVER__CPP_SOURCE_DIR=install/spark-api-server-linux
+# Determines which appsettings to load at runtime. Expects a file named:
+#   src/client/spark_api_server/appsettings.${API_SERVER__ASPNETCORE_ENVIRONMENT}.json
+API_SERVER__ASPNETCORE_ENVIRONMENT=Staging
@@ -1,3 +1,4 @@
 *.cmd text=auto eol=crlf
 *.cs text=auto eol=crlf
 *.sh text=auto eol=lf
+*.py text=auto eol=lf
@@ -11,7 +11,6 @@ cmake-build-debug/
 **.vscode/*
 !.vscode/launch.json
 !.vscode/tasks.json
-!.vscode/*.env
 .vs
 obj/
 *.csproj.user
@@ -55,12 +54,11 @@ trace_data/
 .cache/
 /src/Spark.Admin.WebApp/tsconfig.*.g.json
 /src/Spark.Admin.WebApp/src/bin/
-/src/**/*appsettings.Local.json
-/src/**/*/Configurations/Local/
 **/CMakeDeps.cmake
 **/CMakeDeps_win.cmake
 .devcontainer/
 *.Generated.cs
 *.lst
+src/app_sparkd/spark.local.conf
 .env.local
-.secrets
+.md_recording
@@ -1,14 +1,6 @@
 {
  "version": "0.2.0",
  "configurations": [
-    {
-      "name": "Python Debugger: Current File with Arguments",
-      "type": "debugpy",
-      "request": "launch",
-      "program": "${file}",
-      "console": "integratedTerminal",
-      "args": "${command:pickArgs}"
-    },
    {
      "name": ".NET Core Attach",
      "type": "coreclr",
@@ -19,19 +11,24 @@
      "type": "coreclr",
      "request": "launch",
      "program": "",
-      "preLaunchTask": "Build Api Server (Debug)",
      "windows": {
+        "preLaunchTask": "Build Api Server (Debug)",
        "program": "spark_api_server.exe",
+        "args": [
+          "run",
+        ],
+        "cwd": "build/Debug/bin/net7.0",
      },
      "linux": {
+        "preLaunchTask": "Build Api Server (Debug)",
        "program": "spark_api_server",
+        "args": [
+          "run",
+        ],
+        "cwd": "build/Debug/bin/net7.0",
      },
-      "args": [
-        "run",
-      ],
-      "cwd": "build/Debug/bin/net8.0",
      "env": {
-        "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
+        "ASPNETCORE_ENVIRONMENT": "Development",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
@@ -43,20 +40,51 @@
      "program": "",
      "windows": {
        "program": "spark_api_server.exe",
+        "args": [
+          "run",
+        ],
+        "cwd": "build/Debug/bin/net7.0",
      },
      "linux": {
        "program": "spark_api_server",
+        "args": [
+          "run",
+        ],
+        "cwd": "build/Debug/bin/net7.0",
      },
-      "args": [
-        "run",
-      ],
-      "cwd": "build/Debug/bin/net8.0",
      "env": {
-        "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
+        "ASPNETCORE_ENVIRONMENT": "Development",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
+    {
+      "name": "Bts.DataStreamWebApp.Server",
+      "type": "coreclr",
+      "request": "launch",
+      "preLaunchTask": "Build DataStream (Debug)",
+      "program": "${workspaceFolder}/build/Debug/bin/net7.0/Bts.DataStreamWebApp.Server.dll",
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
+      "env": {
+        "ASPNETCORE_HTTP_PORT": "8080",
+        "ASPNETCORE_HTTPS_PORT": "8443",
+        "ASPNETCORE_ENVIRONMENT": "${input:dataStreamWebAppServerEnvironment}",
+        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+      }
+    },
+    {
+      "name": "Bts.DataStreamWebApp.Server (Skip Build)",
+      "type": "coreclr",
+      "request": "launch",
+      "program": "${workspaceFolder}/build/Debug/bin/net7.0/Bts.DataStreamWebApp.Server.dll",
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
+      "env": {
+        "ASPNETCORE_HTTP_PORT": "8080",
+        "ASPNETCORE_HTTPS_PORT": "8443",
+        "ASPNETCORE_ENVIRONMENT": "${input:dataStreamWebAppServerEnvironment}",
+        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+      }
+    },
    {
      "name": "DataStreamPublisher",
      "type": "coreclr",
@@ -69,10 +97,10 @@
      "windows": {
        "program": "DataStreamPublisher.exe",
      },
-      "cwd": "build/Debug/bin/net8.0",
      "env": {
        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
      },
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
@@ -87,10 +115,10 @@
      "windows": {
        "program": "DataStreamPublisher.exe",
      },
-      "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
      "env": {
        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
      },
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
@@ -99,39 +127,7 @@
      "type": "cppdbg",
      "request": "launch",
      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "run"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests2",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader2]"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader]"
-      ],
+      "args": ["run"],
      "stopAtEntry": false,
      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
      "environment": [],
@@ -142,30 +138,17 @@
      "name": "DataStreamQueryAnalyzer",
      "type": "coreclr",
      "request": "launch",
-      "preLaunchTask": "Build DataStream (Debug)",
+      "preLaunchTask": "Build DataStreamQueryAnalyzer (Debug)",
      "program": "",
      "windows": {
        "program": "DataStreamQueryAnalyzer.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json"
+        ],
+        "cwd": "build/Debug/bin/net7.0-windows",
        "env": {
-          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe",
-          "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-        },
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal",
-    },
-    {
-      "name": "DataStreamQueryAnalyzer (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "DataStreamQueryAnalyzer.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe",
-          "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
+          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe"
        },
      },
      "stopAtEntry": false,
@@ -183,7 +166,7 @@
      "windows": {
        "program": "PubSubServer.exe",
      },
-      "cwd": "build/Debug/bin/net8.0",
+      "cwd": "build/Debug/bin/net7.0",
      "env": {
        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
      },
@@ -201,50 +184,13 @@
      "windows": {
        "program": "PubSubServer.exe",
      },
-      "cwd": "build/Debug/bin/net8.0",
+      "cwd": "build/Debug/bin/net7.0",
      "env": {
        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
-    {
-      "name": "Sdk Demo",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "preLaunchTask": "Build Spark Sdk (Debug)",
-      "windows": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "linux": {
-        "program": "Bts.Spark.Sdk.Demo",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:sdkDemoEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Sdk Demo (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "linux": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:sdkDemoEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
    {
      "name": "Spark",
      "type": "coreclr",
@@ -253,25 +199,11 @@
      "windows": {
        "preLaunchTask": "Build Spark (Debug)",
        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:sparkEnvironment}",
-        }
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:sparkEnvironment}",
-        }
+        "args": [
+          "--sparkd",
+          "http://127.0.0.1:8000/config"
+        ],
+        "cwd": "build/Debug/bin/net7.0-windows",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
@@ -285,43 +217,10 @@
      "windows": {
        "program": "Spark.exe",
        "args": [
-          "--Spark:ConfigServer",
+          "--sparkd",
          "${input:sparkConfigServer}"
        ],
-        "cwd": "build/Debug/bin/net8.0-windows",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark Test",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "preLaunchTask": "Build Spark (Debug)",
-        "program": "Spark.Console.exe",
-        "cwd": "build/Debug/bin/net8.0",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ]
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark Test (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.Console.exe",
-        "cwd": "build/Debug/bin/net8.0",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ]
+        "cwd": "build/Debug/bin/net7.0-windows",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
@@ -330,10 +229,10 @@
      "name": "Sparkd",
      "type": "cppdbg",
      "request": "launch",
+      "preLaunchTask": "Build Sparkd (Debug | Clang)",
      "program": "",
      "linux": {
        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-        "preLaunchTask": "Build Sparkd (Debug | Clang)",
      },
      "args": [
        "run"
@@ -384,10 +283,19 @@
      ]
    },
    {
-      "name": "Sparkd Attach",
+      "name": "Sparkd Web (Skip Build)",
      "type": "cppdbg",
-      "request": "attach",
-      "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
+      "request": "launch",
+      "program": "",
+      "linux": {
+        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
+      },
+      "args": [
+        "web"
+      ],
+      "cwd": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd",
+      "stopAtEntry": false,
+      "externalConsole": false,
      "MIMode": "gdb",
      "setupCommands": [
        {
@@ -405,69 +313,41 @@
  ],
  "inputs": [
    {
-      "id": "apiServerEnvironment",
-      "type": "pickString",
-      "description": "Api Server Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "dataStreamPublisherConfig",
+      "id": "dataStreamPublisherEnvironment",
      "type": "pickString",
      "description": "Publisher Configuration",
      "options": [
-        "MarketDataPublisher",
-        "SimpleEchoClient",
-        "SimpleTestDataPublisher",
-        "TestDataPublisher",
+        "Development",
+        "MarketData",
+        "Production",
+        "ProductionAws",
+        "Staging",
      ],
      "default": "MarketDataPublisher",
    },
-    {
-      "id": "dataStreamQueryAnalyzerEnvironment",
-      "type": "pickString",
-      "description": "DataStreamQueryAnalyzer Configuration",
-      "options": [
-        "Development",
-        "Local",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "dataStreamPublisherEnvironment",
-      "type": "pickString",
-      "description": "DataStreamPublisher Configuration",
-      "options": [
-        "Local",
-        "ReplayMarketData",
-      ],
-      "default": "Local",
-    },
    {
      "id": "pubSubServerEnvironment",
      "type": "pickString",
-      "description": "PubSubServer Configuration",
+      "description": "PubSub Configuration",
      "options": [
        "Development",
        "EchoServer",
-        "Local",
+        "Production",
+        "ProductionAws",
+        "Staging",
      ],
      "default": "Development",
    },
    {
-      "id": "sdkDemoEnvironment",
+      "id": "dataStreamWebAppServerEnvironment",
      "type": "pickString",
-      "description": "Sdk Demo Configuration",
+      "description": "DataStream WebApp Environment",
      "options": [
        "Development",
-        "Local",
+        "Production",
+        "ProductionAws",
        "Staging",
-      ],
-      "default": "Development",
+      ]
    },
    {
      "id": "sparkConfigServer",
@@ -476,24 +356,14 @@
      "default": "http://localhost:8000/config",
    },
    {
-      "id": "sparkEnvironment",
+      "id": "isSparkApiEnabled",
      "type": "pickString",
-      "description": "Spark Configuration",
+      "description": "Enable Spark Api (connect to sparkd)",
      "options": [
-        "Development",
-        "Local",
+        "True",
+        "False",
      ],
-      "default": "Development",
-    },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
+      "default": "True",
+    }
  ]
 }
@@ -1 +0,0 @@
-PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins;/workspaces/spark/tools/py
@@ -121,6 +121,117 @@
        "color": "terminal.ansiCyan"
      },
    },
+    {
+      "label": "Build DataStreamQueryAnalyzer",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "windows": {
+        "command": "tools/build_data_stream_query_analyzer.cmd",
+      },
+      "args": [
+        "--configuration",
+        "${input:buildConfiguration}",
+      ],
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
+    {
+      "label": "Build DataStreamQueryAnalyzer (Debug)",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "windows": {
+        "command": "tools/build_data_stream_query_analyzer.cmd",
+      },
+      "args": [
+        "--configuration",
+        "Debug",
+      ],
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
+    {
+      "label": "Build DataStreamQueryAnalyzer (Release)",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "windows": {
+        "command": "tools/build_data_stream_query_analyzer.cmd",
+      },
+      "args": [
+        "--configuration",
+        "Release",
+      ],
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
+    {
+      "label": "Build DataStream WebApp",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "linux": {
+        "command": "tools/build_data_stream_web_app.sh",
+      },
+      "windows": {
+        "command": "tools/build_data_stream_web_app.cmd",
+      },
+      "args": [
+        "--configuration",
+        "${input:buildConfiguration}",
+      ],
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
+    {
+      "label": "Build DataStream WebApp (Debug)",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "linux": {
+        "command": "tools/build_data_stream_web_app.sh",
+      },
+      "windows": {
+        "command": "tools/build_data_stream_web_app.cmd",
+      },
+      "args": [
+        "--configuration",
+        "Debug",
+      ],
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
+    {
+      "label": "Build DataStream WebApp (Release)",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "linux": {
+        "command": "tools/build_data_stream_web_app.sh",
+      },
+      "windows": {
+        "command": "tools/build_data_stream_web_app.cmd",
+      },
+      "args": [
+        "--configuration",
+        "Release",
+      ],
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
    {
      "label": "Build Spark",
      "group": "build",
@@ -172,66 +283,6 @@
        "color": "terminal.ansiCyan"
      },
    },
-    {
-      "label": "Build Spark Sdk",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "tools/build_spark_sdk.sh",
-      },
-      "windows": {
-        "command": "tools/build_spark_sdk.cmd",
-      },
-      "args": [
-        "--configuration",
-        "${input:buildConfiguration}",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
-    {
-      "label": "Build Spark Sdk (Debug)",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "tools/build_spark_sdk.sh",
-      },
-      "windows": {
-        "command": "tools/build_spark_sdk.cmd",
-      },
-      "args": [
-        "--configuration",
-        "Debug",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
-    {
-      "label": "Build Spark Sdk (Release)",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "tools/build_spark_sdk.cmd",
-      },
-      "linux": {
-        "command": "tools/build_spark_sdk.sh",
-      },
-      "args": [
-        "--configuration",
-        "Release",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
    {
      "label": "Build Sparkd",
      "group": "build",
@@ -363,6 +414,22 @@
        "color": "terminal.ansiCyan"
      },
    },
+    {
+      "label": "Publish DataStreamWebApp",
+      "group": "build",
+      "type": "process",
+      "command": "",
+      "linux": {
+        "command": "tools/publish_data_stream_web_app.sh",
+      },
+      "windows": {
+        "command": "tools/publish_data_stream_web_app.cmd",
+      },
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
    {
      "label": "Edit DataStream Config",
      "type": "process",
@@ -411,141 +478,19 @@
        "id": "wrench"
      },
    },
-    {
-      "label": "Run Api Server",
-      "dependsOn": "Build Api Server",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Debug)",
-      "dependsOn": "Build Api Server (Debug)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Release)",
-      "dependsOn": "Build Api Server (Release)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Debug | Skip Build)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Release | Skip Build)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
    {
      "label": "Run DataStreamQueryAnalyzer",
-      "dependsOn": "Build DataStream",
+      "dependsOn": "Build DataStreamQueryAnalyzer",
      "type": "process",
      "command": "",
      "windows": {
        "command": "DataStreamQueryAnalyzer.exe",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
+        ],
        "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows",
-          "env": {
-            "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-          },
+          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -555,16 +500,17 @@
    },
    {
      "label": "Run DataStreamQueryAnalyzer (Debug)",
-      "dependsOn": "Build DataStream (Debug)",
+      "dependsOn": "Build DataStreamQueryAnalyzer (Debug)",
      "type": "process",
      "command": "",
      "windows": {
        "command": "DataStreamQueryAnalyzer.exe",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
+        ],
        "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0-windows",
-          "env": {
-            "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-          },
+          "cwd": "${workspaceFolder}/build/Debug/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -574,16 +520,17 @@
    },
    {
      "label": "Run DataStreamQueryAnalyzer (Release)",
-      "dependsOn": "Build DataStream (Release)",
+      "dependsOn": "Build DataStreamQueryAnalyzer (Release)",
      "type": "process",
      "command": "",
      "windows": {
        "command": "DataStreamQueryAnalyzer.exe",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
+        ],
        "options": {
-          "cwd": "${workspaceFolder}/build/Release/bin/net8.0-windows",
-          "env": {
-            "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-          },
+          "cwd": "${workspaceFolder}/build/Release/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -602,11 +549,12 @@
      "windows": {
        "command": "DataStreamPublisher.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -624,11 +572,12 @@
      "windows": {
        "command": "DataStreamPublisher.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -646,11 +595,95 @@
      "windows": {
        "command": "DataStreamPublisher.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
+      },
+      "icon": {
+        "id": "run",
+        "color": "terminal.ansiGreen",
+      },
+    },
+    {
+      "label": "Run DataStream WebApp (Debug)",
+      "dependsOn": "Build DataStream WebApp (Debug)",
+      "command": "",
+      "linux": {
+        "command": "Bts.DataStreamWebApp.Server",
+      },
+      "windows": {
+        "command": "Bts.DataStreamWebApp.Server.exe",
+      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
+      ],
+      "options": {
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
        "env": {
-          "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-        },
+          "ASPNETCORE_HTTP_PORT": "8080",
+          "ASPNETCORE_HTTPS_PORT": "8443",
+          "ASPNETCORE_ENVIRONMENT": "Development",
+          "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+        }
+      },
+      "icon": {
+        "id": "run",
+        "color": "terminal.ansiGreen",
+      },
+    },
+    {
+      "label": "Run DataStream WebApp (Release)",
+      "dependsOn": "Build DataStream WebApp (Release)",
+      "command": "",
+      "linux": {
+        "command": "Bts.DataStreamWebApp.Server",
+      },
+      "windows": {
+        "command": "Bts.DataStreamWebApp.Server.exe",
+      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
+      ],
+      "options": {
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0",
+        "env": {
+          "ASPNETCORE_HTTP_PORT": "8080",
+          "ASPNETCORE_HTTPS_PORT": "8443",
+          "ASPNETCORE_ENVIRONMENT": "Production",
+          "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+        }
+      },
+      "icon": {
+        "id": "run",
+        "color": "terminal.ansiGreen",
+      },
+    },
+    {
+      "label": "Run DataStream WebApp (Release | Skip Build)",
+      "command": "",
+      "linux": {
+        "command": "Bts.DataStreamWebApp.Server",
+      },
+      "windows": {
+        "command": "Bts.DataStreamWebApp.Server.exe",
+      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
+      ],
+      "options": {
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0",
+        "env": {
+          "ASPNETCORE_HTTP_PORT": "8080",
+          "ASPNETCORE_HTTPS_PORT": "8443",
+          "ASPNETCORE_ENVIRONMENT": "Production",
+          "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+        }
      },
      "icon": {
        "id": "run",
@@ -668,11 +701,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -690,11 +724,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -711,11 +746,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -733,11 +769,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -754,11 +791,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -773,7 +811,7 @@
      "windows": {
        "command": "Spark.exe",
        "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -789,7 +827,7 @@
      "windows": {
        "command": "Spark.exe",
        "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Debug/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -805,22 +843,7 @@
      "windows": {
        "command": "Spark.exe",
        "options": {
-          "cwd": "${workspaceFolder}/build/Release/bin/net8.0-windows"
-        },
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      }
-    },
-    {
-      "label": "Run Spark (Skip Build)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "Spark.exe",
-        "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Release/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -845,7 +868,7 @@
        "${input:sparkConfigQuery}",
      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -871,24 +894,6 @@
        "color": "terminal.ansiGreen",
      },
    },
-    {
-      "label": "Run Sparkd (Skip Build)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "sparkd",
-      },
-      "args": [
-        "run"
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:sparkdCmakePreset}/server"
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
    {
      "label": "Run Sparkd Config Query",
      "dependsOn": "Build Sparkd",
@@ -910,65 +915,6 @@
        "color": "terminal.ansiGreen",
      },
    },
-    {
-      "label": "Test Spark (Debug)",
-      "dependsOn": "Build Spark (Debug)",
-      "type": "process",
-      "icon": {
-        "id": "coverage",
-        "color": "terminal.ansiYellow",
-      },
-      "command": "",
-      "windows": {
-        "command": "Spark.Console.exe",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ],
-        "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        }
-      },
-    },
-    {
-      "label": "Test Sparkd",
-      "dependsOn": "Build Sparkd",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "sparkd",
-      },
-      "args": [
-        "test",
-        "${input:sparkdTest}",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:sparkdCmakePreset}/server"
-      },
-      "icon": {
-        "id": "coverage",
-        "color": "terminal.ansiYellow",
-      },
-    },
-    {
-      "label": "Test Sparkd (Skip Build)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "sparkd",
-      },
-      "args": [
-        "test",
-        "${input:sparkdTest}",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:sparkdCmakePreset}/server"
-      },
-      "icon": {
-        "id": "coverage",
-        "color": "terminal.ansiYellow",
-      },
-    },
    {
      "label": "View DataStreamQueryAnalyzer Logs (Last Run)",
      "type": "process",
@@ -1024,17 +970,6 @@
    },
  ],
  "inputs": [
-    {
-      "id": "apiServerEnvironment",
-      "type": "pickString",
-      "description": "Api Server Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
-    },
    {
      "id": "buildConfiguration",
      "type": "pickString",
@@ -1045,16 +980,6 @@
      ],
      "default": "Debug",
    },
-    {
-      "id": "dataStreamQueryAnalyzerEnvironment",
-      "type": "pickString",
-      "description": "DataStreamQueryAnalyzer Configuration",
-      "options": [
-        "Development",
-        "Local",
-      ],
-      "default": "Development",
-    },
    {
      "id": "sparkdCmakePreset",
      "type": "pickString",
@@ -1078,30 +1003,26 @@
      "default": "sparkd-debug-clang",
    },
    {
-      "id": "dataStreamPublisherEnvironment",
+      "id": "dataStreamPublisherConfig",
      "type": "pickString",
      "description": "Publisher Configuration",
      "options": [
-        "Development",
-        "MarketData",
-        "Production",
-        "ProductionAws",
-        "Staging",
+        "MarketDataPublisher",
+        "SimpleEchoClient",
+        "SimpleTestDataPublisher",
+        "TestDataPublisher",
      ],
      "default": "MarketDataPublisher",
    },
    {
-      "id": "pubSubServerEnvironment",
+      "id": "pubSubServerConfig",
      "type": "pickString",
      "description": "PubSub Configuration",
      "options": [
-        "Development",
-        "EchoServer",
-        "Production",
-        "ProductionAws",
-        "Staging",
+        "PubSubServer",
+        "SimpleEchoClient",
      ],
-      "default": "Development",
+      "default": "PubSubServer",
    },
    {
      "id": "sparkConfigQuery",
@@ -1112,16 +1033,6 @@
      "id": "sparkdConfigQuery",
      "type": "promptString",
      "description": "Config Type(s)"
-    },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
+    }
  ]
 }
@@ -1,102 +0,0 @@
-
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-EndProject
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-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{E3BF9514-CB1A-4E07-A8DD-73300FD9726C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{8949AF88-F1D3-4BC4-827F-B088B555F7B9}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{37E4E890-D025-4729-90F9-6F95862F47BC}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Sdk", "src\cs\Bts.Spark.Sdk\Bts.Spark.Sdk.csproj", "{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Sdk.Demo", "src\cs\Bts.Spark.Sdk.Demo\Bts.Spark.Sdk.Demo.csproj", "{FCFDBDBE-74B0-41C4-9011-C651B21056D4}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|Any CPU = Release|Any CPU
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
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-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
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-	EndGlobalSection
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@@ -1,10 +1,7 @@
 cmake_minimum_required(VERSION 3.12)
 project(spark)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/GitVersion.cmake)
 set(CMAKE_CXX_STANDARD 20)

-get_version_from_git()
 if(WIN32)
  set(platform "windows")
 else()
@@ -36,98 +33,85 @@ else()
  set(BUILD_ADMIN_WEB_APP ON CACHE BOOL "Build the Admin WebApp")
 endif()

-include_directories(BEFORE SYSTEM ${EXTERNALS_INCLUDE} ${EXTERNALS_ROOT}/include/zlib)
-link_directories(${EXTERNALS_LIB})
-
 add_compile_definitions(SHARED_MEMORY_PREFIX="${SHARED_MEMORY_PREFIX}")
 if(DEFINED APP_DATA_DIR)
  add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
 endif()
 add_compile_definitions(EXPORT_MD_CONSUMER="${EXPORT_MD_CONSUMER}")
-if(WIN32)
-  # subdirs
-  add_subdirectory(src/lib_spark)
-else()
-  if(BUILD_SPARKD)
-    # Note: All macros that begin w/ 'CCAPI' are ccapi's macros (defined and/or
-    # read by their code). We override some below.
-    add_compile_definitions(SPARK_ENABLE_CCAPI)

-    # This allows us to override hardcoded exchange-urls with ones read from
-    # config (i.e., resolved at runtime rather than compile-time)
-    add_compile_definitions(CCAPI_EXPOSE_INTERNAL)
+if(BUILD_SPARKD)
+  # Note: All macros that begin w/ 'CCAPI' are ccapi's macros (defined and/or
+  # read by their code). We override some below.
+  add_compile_definitions(SPARK_ENABLE_CCAPI)

-    # Enable ccapi services
-    add_compile_definitions(CCAPI_ENABLE_SERVICE_MARKET_DATA)
-    add_compile_definitions(CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT)
-    # Enable ccapi exchanges
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_US)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_COINBASE)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_DERIBIT)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_OKX)
+  # This allows us to override hardcoded exchange-urls with ones read from
+  # config (i.e., resolved at runtime rather than compile-time)
+  add_compile_definitions(CCAPI_EXPOSE_INTERNAL)

-    set(CCAPI_LOG_LEVEL
-      "Warn"
-      CACHE STRING "<Fatal|Error|Warn|Info|Debug|Trace> Log level for ccapi")
-    string(TOUPPER "${CCAPI_LOG_LEVEL}" _ccapi_log_level_upper)
-    add_compile_definitions("CCAPI_ENABLE_LOG_${_ccapi_log_level_upper}")
+  # Enable ccapi services
+  add_compile_definitions(CCAPI_ENABLE_SERVICE_MARKET_DATA)
+  add_compile_definitions(CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT)
+  # Enable ccapi exchanges
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_US)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_COINBASE)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_DERIBIT)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_OKX)

-    # ** Binance **
-    add_compile_definitions(CCAPI_BINANCE_URL_REST_BASE="https://api.binance.com")
-    add_compile_definitions(BINANCE_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
-    add_compile_definitions(BINANCE_PRICE_STATS_PATH="/api/v3/ticker/24hr")
+  set(CCAPI_LOG_LEVEL
+    "Warn"
+    CACHE STRING "<Fatal|Error|Warn|Info|Debug|Trace> Log level for ccapi")
+  string(TOUPPER "${CCAPI_LOG_LEVEL}" _ccapi_log_level_upper)
+  add_compile_definitions("CCAPI_ENABLE_LOG_${_ccapi_log_level_upper}")

-    # ** Binance US **
-    add_compile_definitions(BINANCE_US_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
-    add_compile_definitions(BINANCE_US_PRICE_STATS_PATH="/api/v3/ticker/24hr")
+  # ** Binance **
+  add_compile_definitions(CCAPI_BINANCE_URL_REST_BASE="https://api.binance.com")
+  add_compile_definitions(BINANCE_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
+  add_compile_definitions(BINANCE_PRICE_STATS_PATH="/api/v3/ticker/24hr")

-    # ** Binance USDS Futures **
-    add_compile_definitions(CCAPI_BINANCE_USDS_FUTURES_URL_REST_BASE="https://fapi.binance.com")
-    add_compile_definitions(BINANCE_USDS_FUTURES_INSTRUMENTS_PATH="/fapi/v1/exchangeInfo")
-    add_compile_definitions(BINANCE_USDS_FUTURES_PRICE_STATS_PATH="/fapi/v1/ticker/24hr")
-    add_compile_definitions(BINANCE_USDS_FUTURES_USER_DATA_PATH="/api/v3/userDataStream")
+  # ** Binance US **
+  add_compile_definitions(BINANCE_US_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
+  add_compile_definitions(BINANCE_US_PRICE_STATS_PATH="/api/v3/ticker/24hr")

-    # ** Binance Coin Futures **
-    add_compile_definitions(CCAPI_BINANCE_COIN_FUTURES_URL_REST_BASE="https://dapi.binance.com")
-    add_compile_definitions(BINANCE_COIN_FUTURES_INSTRUMENTS_PATH="/dapi/v1/exchangeInfo")
-    add_compile_definitions(BINANCE_COIN_FUTURES_PRICE_STATS_PATH="/dapi/v1/ticker/24hr")
+  # ** Binance USDS Futures **
+  add_compile_definitions(CCAPI_BINANCE_USDS_FUTURES_URL_REST_BASE="https://dapi.binance.com")
+  add_compile_definitions(BINANCE_USDS_FUTURES_INSTRUMENTS_PATH="/dapi/v1/exchangeInfo")
+  add_compile_definitions(BINANCE_USDS_FUTURES_PRICE_STATS_PATH="/dapi/v1/ticker/24hr")

-    # ** Deribit **
-    add_compile_definitions(DERIBIT_INSTRUMENT_PATH="/api/v2/public/get_instrument")
-    add_compile_definitions(DERIBIT_INSTRUMENTS_PATH="/api/v2/public/get_instruments")
-    add_compile_definitions(DERIBIT_COMBOS_PATH="/api/v2/public/get_combos")
-    add_compile_definitions(DERIBIT_TICKER_PATH="/api/v2/public/ticker")
-    add_compile_definitions(DERIBIT_CURRENCIES_METHOD="public/get_currencies")
-    add_compile_definitions(DERIBIT_INSTRUMENT_METHOD="public/get_instrument")
-    add_compile_definitions(DERIBIT_INSTRUMENTS_METHOD="public/get_instruments")
-    add_compile_definitions(DERIBIT_COMBO_DETAILS_METHOD="public/get_combo_details")
-    add_compile_definitions(DERIBIT_COMBOS_METHOD="public/get_combos")
+  # ** Deribit **
+  add_compile_definitions(DERIBIT_INSTRUMENT_PATH="/api/v2/public/get_instrument")
+  add_compile_definitions(DERIBIT_INSTRUMENTS_PATH="/api/v2/public/get_instruments")
+  add_compile_definitions(DERIBIT_COMBOS_PATH="/api/v2/public/get_combos")
+  add_compile_definitions(DERIBIT_TICKER_PATH="/api/v2/public/ticker")
+  add_compile_definitions(DERIBIT_CURRENCIES_METHOD="public/get_currencies")
+  add_compile_definitions(DERIBIT_INSTRUMENT_METHOD="public/get_instrument")
+  add_compile_definitions(DERIBIT_INSTRUMENTS_METHOD="public/get_instruments")
+  add_compile_definitions(DERIBIT_COMBO_DETAILS_METHOD="public/get_combo_details")
+  add_compile_definitions(DERIBIT_COMBOS_METHOD="public/get_combos")

-    # ** Okx **
-    add_compile_definitions(OKX_INSTRUMENTS_PATH="/api/v5/public/instruments")
-    add_compile_definitions(OKX_UNDERLYING_PATH="/api/v5/public/underlying")
-  endif()
+  # ** Okx **
+  add_compile_definitions(OKX_INSTRUMENTS_PATH="/api/v5/public/instruments")
+  add_compile_definitions(OKX_UNDERLYING_PATH="/api/v5/public/underlying")
+endif()

-  # subdirs
-  add_subdirectory(src/lib_spark)
-  if (BUILD_SPARKD)
-    add_subdirectory(src/lib_python_interop)
-    add_subdirectory(src/lib_onixs_fix)
-    add_subdirectory(src/lib_binance)
-    add_subdirectory(src/lib_okx_execution)
-    add_subdirectory(src/app_sparkd)
-    add_subdirectory(src/data_files)
-  endif()
-  if (BUILD_ADMIN_WEB_APP)
-    add_subdirectory(src/Spark.Admin.WebApp)
-  endif()
-  if(BUILD_DOCS)
-    add_subdirectory(doc/user)
-  endif()
-  if(BUILD_SDK)
-    add_subdirectory(src/sdk)
-  endif()
+# subdirs
+add_subdirectory(src/lib_system)
+add_subdirectory(src/lib_domain)
+add_subdirectory(src/lib_http)
+if (BUILD_SPARKD)
+  add_subdirectory(src/lib_python_md)
+  add_subdirectory(src/app_sparkd)
+  add_subdirectory(src/data_files)
+endif()
+add_subdirectory(src/lib_spark)
+if (BUILD_ADMIN_WEB_APP)
+  add_subdirectory(src/Spark.Admin.WebApp)
+endif()
+if(BUILD_DOCS)
+  add_subdirectory(doc/user)
+endif()
+if(BUILD_SDK)
+  add_subdirectory(src/sdk)
 endif()
@@ -8,31 +8,14 @@

  "configurePresets": [
    {
-      "name": "spark-base",
-      "hidden": true,
-      "binaryDir": "${sourceDir}/build/${presetName}",
-      "cacheVariables": {
-        "CMAKE_CXX_STANDARD": "20",
-        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
-        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
-        "EXPORT_MD_CONSUMER": {
-          "type": "BOOL",
-          "value": "ON"
-        }
-      }
-    },
-
-    {
-      "name": "spark-windows",
-      "inherits": "spark-base",
-      "displayName": "Spark",
+      "name": "spark",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      },
      "generator": "Visual Studio 17 2022",
+      "binaryDir": "${sourceDir}/build/${presetName}",
      "environment": {
        "SPARK_CMAKE_CXX_FLAGS": "/MP /WX /wd4250 /wd4251 /wd4244 /wd4267 /wd4355 /wd4275 /wd4345 /bigobj /EHsc /DCURL_STATICLIB /D_WINSOCK_DEPRECATED_NO_WARNINGS /D__TBB_NO_IMPLICIT_LINKAGE /DBOOST_ALL_NO_LIB /std:c++20 /D_SCL_SECURE_NO_WARNINGS /D_CRT_SECURE_NO_WARNINGS /D_WIN32_WINNT=0x0600"
      },
@@ -40,9 +23,17 @@
        "CMAKE_CXX_FLAGS": "$env{SPARK_CMAKE_CXX_FLAGS}",
        "CMAKE_CXX_FLAGS_DEBUG": "$env{SPARK_CMAKE_CXX_FLAGS} /MTd",
        "CMAKE_CXX_FLAGS_RELEASE": "$env{SPARK_CMAKE_CXX_FLAGS} /MT",
+        "CMAKE_CXX_STANDARD": "20",
        "CMAKE_SHARED_LINKER_FLAGS_DEBUG": "/DEBUG",
        "CMAKE_SHARED_LINKER_FLAGS_RELEASE": "/OPT:REF /OPT:ICF /LTCG",
-        "EXTERNALS_ROOT": "${sourceDir}/externals/windows"
+        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
+        "EXTERNALS_ROOT": "${sourceDir}/externals/windows",
+        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net7.0-windows",
+        "EXPORT_MD_CONSUMER": {
+          "type": "BOOL",
+          "value": "ON"
+        }
      }
    },

@@ -58,20 +49,11 @@
      "binaryDir": "${sourceDir}/build/${presetName}",
      "cacheVariables": {
        "platform": "",
-        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
-          "type": "BOOL",
-          "value": "OFF"
-        },
        "CMAKE_CXX_STANDARD": "20",
-        "CMAKE_INSTALL_RPATH": ".",
        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "DATABENTO_USE_EXTERNAL_JSON": {
-          "type": "BOOL",
-          "value": "ON"
-        },
        "EXTERNALS_ROOT": "${sourceDir}/externals/linux",
        "BUILD_SDK": {
          "type": "BOOL",
@@ -159,17 +141,17 @@
    },

    {
-      "name": "spark-linux",
-      "inherits": "spark-base",
-      "displayName": "Spark",
-      "condition": {
-        "type": "equals",
-        "lhs": "${hostSystemName}",
-        "rhs": "Linux"
-      },
+      "name": "spark-api-server-windows",
+      "inherits": "spark",
+      "displayName": "Spark Api Server (Windows)"
+    },
+
+    {
+      "name": "spark-api-server-linux",
+      "inherits": "sparkd",
+      "displayName": "Spark Api Server (Linux)",
      "generator": "Ninja Multi-Config",
      "cacheVariables": {
-        "platform": "linux",
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "OFF"
@@ -178,26 +160,20 @@
          "type": "BOOL",
          "value": "OFF"
        },
-        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
-          "type": "BOOL",
-          "value": "OFF"
-        },
        "CMAKE_C_COMPILER": "clang",
        "CMAKE_CXX_COMPILER": "clang++",
        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
-        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
        "CMAKE_EXPORT_COMPILE_COMMANDS": {
          "type": "BOOL",
          "value": "ON"
        },
-        "CMAKE_INSTALL_RPATH": ".",
-        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
-        "DATABENTO_USE_EXTERNAL_JSON": {
+        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
+        "EXPORT_MD_CONSUMER": {
          "type": "BOOL",
          "value": "ON"
-        },
-        "EXTERNALS_ROOT": "${sourceDir}/externals/linux"
+        }
      }
    },

@@ -217,32 +193,87 @@
      "cacheVariables": {
        "CCAPI_LOG_LEVEL": "Trace"
      }
-    }
-  ],
+    },

-  "buildPresets": [
    {
-      "name": "spark-windows",
+      "name": "data-stream-suite-windows",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      },
-      "hidden": true,
-      "configurePreset": "spark-windows"
+      "inherits": "spark",
+      "displayName": "Data Stream Suite (Windows)",
+      "description": "Data Stream utils ported over from Edge",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf;spark/config/profiles/data_stream/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net7.0-windows"
+      }
    },

    {
-      "name": "spark-windows-debug",
+      "name": "data-stream-suite-linux",
+      "displayName": "Data Stream Suite (Linux)",
+      "description": "Data Stream utils ported over from Edge",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Linux"
+      },
+      "inherits": "sparkd",
+      "generator": "Ninja Multi-Config",
+      "cacheVariables": {
+        "BUILD_ADMIN_WEB_APP": {
+          "type": "BOOL",
+          "value": "OFF"
+        },
+        "BUILD_SDK": {
+          "type": "BOOL",
+          "value": "OFF"
+        },
+        "BUILD_SPARKD": {
+          "type": "BOOL",
+          "value": "OFF"
+        },
+        "CMAKE_C_COMPILER": "clang",
+        "CMAKE_CXX_COMPILER": "clang++",
+        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
+        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
+        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf;spark/config/profiles/data_stream/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net8.0",
+        "EXPORT_MD_CONSUMER": {
+          "type": "BOOL",
+          "value": "ON"
+        }
+      }
+    }
+  ],
+
+  "buildPresets": [
+    {
+      "name": "spark",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Windows"
+      },
+      "hidden": true
+    },
+
+    {
+      "name": "spark-debug",
      "displayName": "Spark (Debug)",
-      "inherits": "spark-windows",
+      "inherits": "spark",
+      "configurePreset": "spark",
      "configuration": "Debug"
    },

    {
-      "name": "spark-windows-release",
+      "name": "spark-release",
      "displayName": "Spark (Release)",
-      "inherits": "spark-windows",
+      "inherits": "spark",
+      "configurePreset": "spark",
      "configuration": "Release"
    },

@@ -263,6 +294,14 @@
      "inherits": "sparkd"
    },

+    {
+      "name": "sparkd-debug-clang-j6",
+      "configurePreset": "sparkd-debug-clang",
+      "displayName": "Sparkd (Debug | Clang | jobs=6)",
+      "inherits": "sparkd",
+      "jobs": 6
+    },
+
    {
      "name": "sparkd-debug-gcc",
      "configurePreset": "sparkd-debug-gcc",
@@ -285,27 +324,52 @@
    },

    {
-      "name": "spark-linux",
+      "name": "spark-api-server-windows",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Windows"
+      },
+      "hidden": true,
+      "configurePreset": "spark-api-server-windows"
+    },
+
+    {
+      "name": "spark-api-server-windows-debug",
+      "displayName": "Spark Api Server (Windows | Debug)",
+      "inherits": "spark-api-server-windows",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "spark-api-server-windows-release",
+      "displayName": "Spark Api Server (Windows | Release)",
+      "inherits": "spark-api-server-windows",
+      "configuration": "Release"
+    },
+
+    {
+      "name": "spark-api-server-linux",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Linux"
      },
      "hidden": true,
-      "configurePreset": "spark-linux"
+      "configurePreset": "spark-api-server-linux"
    },

    {
-      "name": "spark-linux-debug",
-      "inherits": "spark-linux",
-      "displayName": "Spark (Linux | Debug)",
+      "name": "spark-api-server-linux-debug",
+      "inherits": "spark-api-server-linux",
+      "displayName": "Spark Api Server (Linux | Debug)",
      "configuration": "Debug"
    },

    {
-      "name": "spark-linux-release",
-      "inherits": "spark-linux",
-      "displayName": "Spark (Linux | Release)",
+      "name": "spark-api-server-linux-release",
+      "inherits": "spark-api-server-linux",
+      "displayName": "Spark Api Server (Linux | Release)",
      "configuration": "Release"
    },

@@ -322,6 +386,34 @@
      "configurePreset": "sparkd-ccapi-diag",
      "displayName": "Debug (ccapi diag)",
      "inherits": "sparkd"
+    },
+
+    {
+      "name": "data-stream-suite-windows-debug",
+      "displayName": "Data Stream Suite (Windows | Debug)",
+      "configurePreset": "data-stream-suite-windows",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "data-stream-suite-windows-release",
+      "displayName": "Data Stream Suite (Windows | Release)",
+      "configurePreset": "data-stream-suite-windows",
+      "configuration": "Release"
+    },
+
+    {
+      "name": "data-stream-suite-linux-debug",
+      "displayName": "Data Stream Suite (Linux | Debug)",
+      "configurePreset": "data-stream-suite-linux",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "data-stream-suite-linux-release",
+      "displayName": "Data Stream Suite (Linux | Release)",
+      "configurePreset": "data-stream-suite-linux",
+      "configuration": "Release"
    }
  ]
 }
@@ -1,11 +1,10 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32922.545
 MinimumVisualStudioVersion = 15.0.26124.0
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api", "src\client\spark_api\spark_api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_core", "src\client\spark_core\spark_core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_websocket", "src\client\spark_websocket\spark_websocket.csproj", "{3201359D-C071-4089-9EDE-B04D759F1508}"
 EndProject
@@ -43,538 +42,178 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnExpressions", "sr
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStream", "src\DataStreamSuite\DataStream\DataStream.csproj", "{39AEA075-6457-46C0-8821-1158BE6EFA57}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{385C4948-E080-56A6-E29E-8B0F4913175C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\cs\Bts.Net\Bts.Net.csproj", "{43FB297B-7A4D-4835-A878-E6DF345B580C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.IO.Compression", "src\cs\Bts.IO.Compression\Bts.IO.Compression.csproj", "{BC277499-8215-4F9F-B9AB-07B6391110BF}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\DataStreamSuite\Bts.Net\Bts.Net.csproj", "{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x86 = Debug|x86
 		MinSizeRel|x64 = MinSizeRel|x64
-		MinSizeRel|Any CPU = MinSizeRel|Any CPU
-		MinSizeRel|x86 = MinSizeRel|x86
 		Release|x64 = Release|x64
-		Release|Any CPU = Release|Any CPU
-		Release|x86 = Release|x86
 		RelWithDebInfo|x64 = RelWithDebInfo|x64
-		RelWithDebInfo|Any CPU = RelWithDebInfo|Any CPU
-		RelWithDebInfo|x86 = RelWithDebInfo|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x64.ActiveCfg = Debug|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x64.Build.0 = Debug|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x86.Build.0 = Debug|Any CPU
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x64.ActiveCfg = Release|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x64.Build.0 = Release|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|Any CPU.ActiveCfg = MinSizeRel|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|Any CPU.Build.0 = MinSizeRel|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x86.ActiveCfg = MinSizeRel|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x86.Build.0 = MinSizeRel|Any CPU
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x64.ActiveCfg = Release|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x64.Build.0 = Release|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|Any CPU.Build.0 = Release|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x86.ActiveCfg = Release|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x86.Build.0 = Release|Any CPU
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x64.ActiveCfg = Release|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x64.Build.0 = Release|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|Any CPU.ActiveCfg = RelWithDebInfo|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|Any CPU.Build.0 = RelWithDebInfo|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x86.ActiveCfg = RelWithDebInfo|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x86.Build.0 = RelWithDebInfo|Any CPU
 		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|x64.ActiveCfg = Debug|x64
 		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|x64.Build.0 = Debug|x64
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
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-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|Any CPU.ActiveCfg = MinSizeRel|Any CPU
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-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|x86.ActiveCfg = MinSizeRel|Any CPU
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-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Release|x86.ActiveCfg = Release|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Release|x86.Build.0 = Release|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
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-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|Any CPU.ActiveCfg = RelWithDebInfo|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|Any CPU.Build.0 = RelWithDebInfo|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x86.ActiveCfg = RelWithDebInfo|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x86.Build.0 = RelWithDebInfo|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|x64.ActiveCfg = Debug|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|x64.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|x86.Build.0 = Debug|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|Any CPU.ActiveCfg = MinSizeRel|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|Any CPU.Build.0 = MinSizeRel|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|x86.ActiveCfg = MinSizeRel|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|x86.Build.0 = MinSizeRel|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|x64.ActiveCfg = Release|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|x64.Build.0 = Release|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|Any CPU.Build.0 = Release|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|x86.ActiveCfg = Release|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|x86.Build.0 = Release|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
 		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|Any CPU.ActiveCfg = RelWithDebInfo|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|Any CPU.Build.0 = RelWithDebInfo|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x86.ActiveCfg = RelWithDebInfo|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x86.Build.0 = RelWithDebInfo|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|x64.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|x86.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.MinSizeRel|Any CPU.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.MinSizeRel|Any CPU.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.MinSizeRel|x86.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.MinSizeRel|x86.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Release|x64.ActiveCfg = Release|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Release|x64.Build.0 = Release|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Release|Any CPU.Build.0 = Release|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Release|x86.ActiveCfg = Release|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Release|x86.Build.0 = Release|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.RelWithDebInfo|Any CPU.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.RelWithDebInfo|Any CPU.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.RelWithDebInfo|x86.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.RelWithDebInfo|x86.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Debug|x64.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Debug|x86.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.MinSizeRel|Any CPU.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.MinSizeRel|Any CPU.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.MinSizeRel|x86.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.MinSizeRel|x86.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Release|x64.ActiveCfg = Release|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Release|x64.Build.0 = Release|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Release|Any CPU.Build.0 = Release|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Release|x86.ActiveCfg = Release|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.Release|x86.Build.0 = Release|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
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-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.RelWithDebInfo|Any CPU.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.RelWithDebInfo|Any CPU.Build.0 = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.RelWithDebInfo|x86.ActiveCfg = Debug|Any CPU
-		{43FB297B-7A4D-4835-A878-E6DF345B580C}.RelWithDebInfo|x86.Build.0 = Debug|Any CPU
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-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Debug|x86.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.MinSizeRel|Any CPU.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.MinSizeRel|Any CPU.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.MinSizeRel|x86.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.MinSizeRel|x86.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Release|x64.ActiveCfg = Release|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Release|x64.Build.0 = Release|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Release|Any CPU.Build.0 = Release|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Release|x86.ActiveCfg = Release|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.Release|x86.Build.0 = Release|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.RelWithDebInfo|Any CPU.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.RelWithDebInfo|Any CPU.Build.0 = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.RelWithDebInfo|x86.ActiveCfg = Debug|Any CPU
-		{BC277499-8215-4F9F-B9AB-07B6391110BF}.RelWithDebInfo|x86.Build.0 = Debug|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Debug|x64.Build.0 = Debug|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Release|x64.ActiveCfg = Release|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Release|x64.Build.0 = Release|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Debug|x64.Build.0 = Debug|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Release|x64.ActiveCfg = Release|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Release|x64.Build.0 = Release|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Debug|x64.Build.0 = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Release|x64.ActiveCfg = Release|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Release|x64.Build.0 = Release|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
+	EndGlobalSection
+	GlobalSection(Performance) = preSolution
+		HasPerformanceSessions = true
+	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{C09ED521-D2DF-40BC-A76F-EB3CB870B2F6} = {267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}
 		{EF26A475-6101-4C9C-A717-D60BB92A2302} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
@@ -586,17 +225,8 @@ Global
 		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
 		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
 		{B945A183-2174-4ACB-B289-8A5C546656FE} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
+		{39AEA075-6457-46C0-8821-1158BE6EFA57} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
 		{9F6D7DE8-185B-4C1D-B809-3314D092DF28} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
 		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{39AEA075-6457-46C0-8821-1158BE6EFA57} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{385C4948-E080-56A6-E29E-8B0F4913175C} = {267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}
-		{43FB297B-7A4D-4835-A878-E6DF345B580C} = {385C4948-E080-56A6-E29E-8B0F4913175C}
-		{BC277499-8215-4F9F-B9AB-07B6391110BF} = {385C4948-E080-56A6-E29E-8B0F4913175C}
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
-	EndGlobalSection
-	GlobalSection(Performance) = preSolution
-		HasPerformanceSessions = true
 	EndGlobalSection
 EndGlobal
@@ -1,48 +0,0 @@
-include_guard(GLOBAL)
-
-function(get_version_from_git)
-  find_package(Git QUIET)
-  if(NOT Git_FOUND)
-    message(WARNING "Git not found")
-    return()
-  endif()
-
-  execute_process(
-    COMMAND ${GIT_EXECUTABLE} describe --tags --always
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    OUTPUT_VARIABLE GIT_TAG
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-    RESULT_VARIABLE GIT_RESULT
-  )
-
-  if(NOT GIT_RESULT EQUAL 0)
-    message(WARNING "Failed to get git tag")
-    return()
-  endif()
-
-  execute_process(
-    COMMAND ${GIT_EXECUTABLE} rev-parse --short=7 HEAD
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    OUTPUT_VARIABLE GIT_COMMIT_SHORT_HASH
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-  )
-  set(PROJECT_VERSION_BUILD_METADATA ${GIT_COMMIT_SHORT_HASH})
-  set(PROJECT_VERSION_BUILD_METADATA ${GIT_COMMIT_SHORT_HASH} PARENT_SCOPE)
-
-  string(REGEX REPLACE "^v" "" CLEAN_TAG "${GIT_TAG}")
-  if(CLEAN_TAG MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-.*)?$")
-    set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
-    set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1} PARENT_SCOPE)
-    set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
-    set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2} PARENT_SCOPE)
-    set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
-    set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3} PARENT_SCOPE)
-
-    set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}") 
-    set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}" PARENT_SCOPE)
-    set(PROJECT_VERSION_FULL "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}+${GIT_COMMIT_SHORT_HASH}")
-    set(PROJECT_VERSION_FULL "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}+${GIT_COMMIT_SHORT_HASH}" PARENT_SCOPE)
-  else()
-    message(WARNING "Tag '${CLEAN_TAG}' does not match semver format")
-  endif()
-endfunction()
@@ -1,71 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(init_python_module)
-  set(_options)
-  set(_one_value_args
-    NAME
-  )
-  set(_multi_value_args
-    SOURCES
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_sources _ARGS_SOURCES ${_name}_SOURCES)
-
-  set(module_proj ${_name}_module)
-  set(${module_proj}_SOURCES ${_sources})
-  pybind11_add_module(${module_proj} SHARED ${_sources})
-  target_link_libraries(
-    ${module_proj}
-    PUBLIC
-      pybind11::embed
-      spark
-      ${_name}
-  )
-  target_include_directories(
-    ${module_proj}
-    PRIVATE
-      $<BUILD_INTERFACE:${pybind11_INCLUDE_DIRS}>
-  )
-  target_include_directories(
-    ${module_proj}
-    PUBLIC
-      ${Python3_INCLUDE_DIRS}
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  add_custom_command(
-    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/stubs/${_name}.pyi
-    DEPENDS ${_name} ${module_proj}
-    COMMAND PYTHONPATH=${CMAKE_CURRENT_BINARY_DIR} pybind11-stubgen --numpy-array-use-type-var --ignore-invalid-expressions '.*' ${_name}_module
-    COMMENT "Generating py stubs"
-  )
-  add_custom_target(
-    "${_name}_py_stubs"
-    ALL
-    DEPENDS
-      ${CMAKE_CURRENT_BINARY_DIR}/stubs/${_name}.pyi
-  )
-  install(
-    TARGETS ${module_proj}
-    EXPORT ${module_proj}Targets
-    RUNTIME
-      DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY
-      DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE
-      DESTINATION ${CMAKE_INSTALL_LIBDIR}
-  )
-  foreach(dir ${pybind11_INCLUDE_DIRS})
-    install(DIRECTORY ${dir} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
-  endforeach()
-  install(
-    EXPORT ${module_proj}Targets
-    FILE ${module_proj}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-endfunction()
@@ -1,65 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-
-function(init_python_plugin)
-  set(_options)
-  set(_one_value_args NAME PLUGIN_NAME)
-  set(_multi_value_args SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set(_plugin_name ${_ARGS_PLUGIN_NAME})
-  if (NOT DEFINED _ARGS_PLUGIN_NAME)
-    set(_plugin_name ${_name}_plugins)
-  endif()
-  set(${_plugin_name}_SOURCES ${_ARGS_SOURCES})
-  if (NOT DEFINED _ARGS_SOURCES)
-    file(
-      GLOB_RECURSE ${_plugin_name}_SOURCES
-      RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-      ${_plugin_name}/*.py)
-  endif()
-  set(src_outs)
-  foreach(_src ${${_plugin_name}_SOURCES})
-    set(_src_in ${CMAKE_CURRENT_SOURCE_DIR}/${_src})
-    set(_src_out ${CMAKE_CURRENT_BINARY_DIR}/${_src})
-    add_custom_command(
-      OUTPUT ${_src_out}
-      COMMAND ${CMAKE_COMMAND} -E copy ${_src_in} ${_src_out}
-      DEPENDS ${_src_in}
-      COMMENT "Copying ${_plugin_name} plugin ${_src} to ${_src_out}"
-    )
-    list(APPEND src_outs ${_src_out})
-  endforeach()
-  
-  add_custom_target(copy_${_plugin_name} ALL DEPENDS ${src_outs})
-  
-  add_library(${_plugin_name} INTERFACE)
-  add_library(${_name}::${_plugin_name} ALIAS ${_plugin_name})
-  
-  set_target_properties(
-    ${_plugin_name}
-    PROPERTIES
-      INTERFACE_PYTHON_SCRIPTS_DIR
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/${_plugin_name}>$<INSTALL_INTERFACE:${CMAKE_INSTALL_BINDIR}/${_plugin_name}>
-  )
-  
-  set_target_properties(
-    ${_plugin_name}
-    PROPERTIES
-    INTERFACE_PYTHON_SCRIPTS $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/${${_plugin_name}_SOURCES}>$<INSTALL_INTERFACE:${CMAKE_INSTALL_BINDIR}/${${_plugin_name}_SOURCES}>
-  )
-  
-  install(
-    TARGETS ${_plugin_name}
-    EXPORT ${_plugin_name}Targets
-    DESTINATION ${CMAKE_INSTALL_BINDIR}
-  )
-  
-  install(
-    EXPORT ${_plugin_name}Targets
-    FILE ${_plugin_name}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-  install(DIRECTORY ${_plugin_name} DESTINATION ${CMAKE_INSTALL_BINDIR})
-endfunction()
@@ -39,8 +39,6 @@ function(protobuf_generate_cpp)
    list(APPEND ${_ARGS_CXX_SOURCES} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc")
    list(APPEND ${_ARGS_CXX_HEADERS} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
    message(STATUS "add_custom_command for ${_fil} -> ${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
-    # TODO: Pass proto sources by relative path (so this fn can be called from
-    # arbitrary subdirs).
    add_custom_command(
      OUTPUT
        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc"
@@ -48,7 +46,7 @@ function(protobuf_generate_cpp)
      COMMAND
        ${_ARGS_PROTOC}
      ARGS
-        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_abs_fil}
+        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_fil}
      DEPENDS ${_abs_fil}
      COMMENT "Running C++ protocol buffer compiler on ${_fil}"
      VERBATIM
@@ -80,4 +78,3 @@ function(protobuf_generate_cpp)
  set(${_ARGS_CXX_SOURCES} ${${_ARGS_CXX_SOURCES}} PARENT_SCOPE)
  set(${_ARGS_CXX_HEADERS} ${${_ARGS_CXX_HEADERS}} PARENT_SCOPE)
 endfunction()
-
@@ -1,5 +1,3 @@
-include_guard(GLOBAL)
-
 function(protobuf_generate_cpp_config)
  set(_options)
  set(_one_value_args
@@ -58,4 +56,3 @@ function(protobuf_generate_cpp_config)
    file(WRITE "${_ARGS_PROTO_DEFAULTS_HEADER}" "${_cfg_defaults_str}")
  endif()
 endfunction()
-
@@ -1,39 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/SymLink.cmake)
-
-function(sym_link_python_module)
-  set(_options)
-  set(_one_value_args LIB_NAME MODULE_NAME PLUGIN_NAME)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}"
-                        "${_multi_value_args}" ${ARGN})
-  if(NOT DEFINED _ARGS_LIB_NAME)
-    message(
-      FATAL_ERROR "LIB_NAME must be specified for sym_link_python_module()")
-  endif()
-  set(_lib_name ${_ARGS_LIB_NAME})
-  set(_module_name ${_ARGS_MODULE_NAME})
-  if(NOT DEFINED _ARGS_MODULE_NAME)
-    set(_module_name ${_lib_name}_module)
-  endif()
-  set(_plugin_name ${_ARGS_PLUGIN_NAME})
-  set(_deps ${_lib_name} ${_module_name})
-  if(DEFINED _ARGS_PLUGIN_NAME)
-    list(APPEND _deps ${_plugin_name} copy_${_plugin_name})
-  endif()
-  add_dependencies(${PROJECT_NAME} ${_deps})
-  sym_link_local_lib(${_lib_name})
-  set(_module_suffix cpython-310-x86_64-linux-gnu.so)
-  sym_link_file(
-    SOURCE
-    ${CMAKE_BINARY_DIR}/src/lib_${_lib_name}/${_module_name}.${_module_suffix}
-    DEST
-    ${CMAKE_CURRENT_BINARY_DIR}/${_module_name}.${_module_suffix}
-    INSTALL_DEST
-    ${CMAKE_INSTALL_BINDIR}/)
-  if(DEFINED _ARGS_PLUGIN_NAME)
-    get_target_property(plugins ${_plugin_name} INTERFACE_PYTHON_SCRIPTS_DIR)
-    sym_link_dir(TARGET_NAME ${PROJECT_NAME}_link_${_plugin_name} SOURCE
-                 ${plugins} DEST ${CMAKE_CURRENT_BINARY_DIR}/${_plugin_name})
-  endif()
-endfunction()
@@ -1,11 +0,0 @@
-#ifndef BTS_SPARK_VERSION_H
-#define BTS_SPARK_VERSION_H
-
-#define BTS_SPARK_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
-#define BTS_SPARK_VERSION_MINOR @PROJECT_VERSION_MINOR@
-#define BTS_SPARK_VERSION_PATCH @PROJECT_VERSION_PATCH@
-#define BTS_SPARK_VERSION_BUILD_METADATA @PROJECT_VERSION_BUILD_METADATA@
-#define BTS_SPARK_VERSION "@PROJECT_VERSION@"
-#define BTS_SPARK_VERSION_FULL "@PROJECT_VERSION_FULL@"
-
-#endif
@@ -0,0 +1,24 @@
+cmake_minimum_required(VERSION 3.5)
+
+# Explicitly set policy to convert relative paths to absolute (although this is a default policy,
+# setting it explicitly prevents a compile-warning)
+cmake_policy(SET CMP0076 NEW)
+
+# add protos to the library to facilitate source_group
+target_sources(spark PUBLIC ${Config_Protos} ${NonConfig_Protos} ${Service_Protos})
+
+function(assign_source_group)
+  foreach(_source IN ITEMS ${ARGN})
+    if(IS_ABSOLUTE "${_source}")
+      file(RELATIVE_PATH _source_rel "${CMAKE_CURRENT_SOURCE_DIR}" "${_source}")
+    else()
+      set(_source_rel "${_source}")
+    endif()
+    get_filename_component(_source_path "${_source_rel}" PATH)
+    string(REPLACE "/" "\\" _source_path_msvc "${_source_path}")
+    source_group("${_source_path_msvc}" FILES "${_source}")
+    set(SOURCE_FILES "${_source}")
+  endforeach()
+endfunction(assign_source_group)
+
+assign_source_group(${SparkLib_Sources} ${Config_Protos} ${NonConfig_Protos} ${Service_Protos})
@@ -0,0 +1,51 @@
+services:
+  sparkd:
+    build:
+      dockerfile: Dockerfile
+      context: ./sparkd
+    command: [ "./sparkd", "run" ]
+    ports: [ "8000:8000", "8001:8001", "8002:8002" ]
+
+  pubsub:
+    build:
+      dockerfile: pubsub.Dockerfile
+      context: ./DataStream
+    command: [ "./PubSubServer" ]
+    environment:
+      - DOTNET_ENVIRONMENT=Production
+    ports:
+      - 22019:22019
+
+  md-publisher:
+    build:
+      dockerfile: md-publisher.Dockerfile
+      context: ./DataStream
+    depends_on:
+      - pubsub
+      - sparkd
+    command:
+      [
+        "dockerize",
+        "-wait",
+        "tcp://pubsub:22019",
+        "-wait",
+        "tcp://sparkd:8000",
+        "-timeout",
+        "10s",
+        "./DataStreamPublisher"
+      ]
+    environment:
+      - DOTNET_ENVIRONMENT=MarketData
+
+  webapp:
+    ports:
+      - 8080:8080
+      - 8443:8443
+    build:
+      dockerfile: webapp.Dockerfile
+      context: ./DataStream
+    command: [ "./Bts.DataStreamWebApp.Server" ]
+    environment:
+      - ASPNETCORE_HTTP_PORT=8080
+      - ASPNETCORE_HTTPS_PORT=8443
+      - ASPNETCORE_ENVIRONMENT=Staging
@@ -1,232 +1,57 @@
 services:
  sparkd:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
    build:
      dockerfile: src/app_sparkd/Dockerfile
      args:
        - IMAGE=${SPARKD__IMAGE}
        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
+        - CONF_FILE=${SPARKD__CONF_FILE}
+        - MD_RECORDING_DIR=${SPARKD__MD_RECORDING_DIR}
+    command: [ "./sparkd", "run" ]
    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-shell:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-    build:
-      dockerfile: docker/images/bluetradingsystems/linux_shell/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    command: "do sleep 1; done"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    deploy:
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-symbols:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-  sparkd-multicast:
-    environment:
-      - TZ=America/Chicago
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-8192mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    network_mode: "host"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-16gb}"
-  
-  
-  sparkd-multicast-cert:
-    environment:
-      - TZ=America/Chicago
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-8192mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    network_mode: "host"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-16gb}"
-  
-  sparkd-tail:
-    image: bluetradingsystems/linux_dotnet8
-    volumes:
-      - type: volume
-        read_only: true
-        source: sparkd_data
-        target: /home/bts/.local/share/bts/sparkd/data/logging.sparkd
-        volume:
-          subpath: logging.sparkd
-    command: ["tail", "-f", "/home/bts/.local/share/bts/sparkd/data/logging.sparkd/log"]
-
-  sparkd-ping-test:
-    depends_on:
-      - sparkd
-    profiles:
-      - ping-test
-    build:
-      context: .
-      dockerfile_inline: |
-        FROM bluetradingsystems/linux_dotnet8
-        USER "root"
-        RUN apt-get update && apt-get -y install iputils-ping
-    command: [ "ping", "sparkd" ]
+      - "8000:8000"
+      - "8001:8001"
+      - "8002:8002"

  pubsub:
-    volumes:
-      - ${PUBSUB__DATA_DIR:-pubsub_data}:/home/bts/.local/share/bts/pubsub/data
+    environment:
+      - DOTNET_ENVIRONMENT=${PUBSUB__DOTNET_ENVIRONMENT}
    build:
      dockerfile: src/DataStreamSuite/PubSubServer/Dockerfile
      args:
-        - SOURCE_DIR=${PUBSUB__SOURCE_DIR}
-        - CONFIG_DIR=${PUBSUB__CONFIG_DIR}
+        - CS_SOURCE_DIR=${PUBSUB__CS_SOURCE_DIR}
+        - CPP_SOURCE_DIR=${PUBSUB__CPP_SOURCE_DIR}
+        - CONF_FILE=${PUBSUB__CONF_FILE}
    ports:
-      - 22019:22019
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/.local/share/bts/pubsub/data
-        if [ -e "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log" ]; then
-          mv "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log" "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/.local/share/bts/pubsub/conf/.env" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/pubsub/conf/.env'
-          set -a
-          . /home/bts/.local/share/bts/pubsub/conf/.env
-          set +a
-        fi
-        if [ -e "/home/bts/.local/share/bts/pubsub/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/pubsub/conf/.env.local'
-          set -a
-          . /home/bts/.local/share/bts/pubsub/conf/.env.local
-          set +a
-        fi
-        ./PubSubServer"
-    env_file:
-      - .env
-      - ${PUBSUB__CONFIG_DIR}/.env
+      - "22019:22019"
+    command: [ "./PubSubServer" ]

  md-publisher:
-    volumes:
-      - ${MD_PUBLISHER__DATA_DIR:-md_publisher_data}:/home/bts/.local/share/bts/md_publisher/data
-      - historic_md:/home/bts/.local/share/bts/md_publisher/data/databento
    build:
      dockerfile: src/DataStreamSuite/DataStreamPublisher/Dockerfile
      args:
        - SOURCE_DIR=${MD_PUBLISHER__SOURCE_DIR}
-        - CONFIG_DIR=${MD_PUBLISHER__CONFIG_DIR}
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/.local/share/bts/md_publisher/data
-        if [ -e "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log" ]; then
-          mv "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log" "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/.local/share/bts/md_publisher/conf/.env" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/md_publisher/conf/.env'
-          set -a
-          . /home/bts/.local/share/bts/md_publisher/conf/.env
-          set +a
-        fi
-        if [ -e "/home/bts/.local/share/bts/md_publisher/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/md_publisher/conf/.env.local'
-          set -a
-          . /home/bts/.local/share/bts/md_publisher/conf/.env.local
-          set +a
-        fi
-      dockerize -wait tcp://pubsub:22019 -timeout 10s ./DataStreamPublisher"
-    env_file:
-      - .env
-      - ${MD_PUBLISHER__CONFIG_DIR}/.env
+        - CONF_FILE=${MD_PUBLISHER__CONF_FILE}
+    depends_on:
+      - pubsub
+      - sparkd
+    command: [ "dockerize", "-wait", "tcp://pubsub:22019", "-wait", "tcp://sparkd:8000", "-timeout", "10s", "./DataStreamPublisher" ]
+    environment:
+      - DOTNET_ENVIRONMENT=${MD_PUBLISHER__DOTNET_ENVIRONMENT}
+
+  webapp:
+    ports:
+      - "8080:8080"
+      - "8443:8443"
+    build:
+      dockerfile: src/DataStreamSuite/Bts.DataStreamWebApp.Server/Dockerfile
+      args:
+        - SOURCE_DIR=${WEBAPP__SOURCE_DIR}
+        - WEB_ROOT=${WEBAPP__WEB_ROOT}
+        - CONF_FILE=${WEBAPP__CONF_FILE}
+    command: [ "./Bts.DataStreamWebApp.Server" ]
+    environment:
+      - ASPNETCORE_ENVIRONMENT=${WEBAPP__ASPNETCORE_ENVIRONMENT}

  api-server:
    depends_on:
@@ -238,17 +63,17 @@ services:
      dockerfile: src/client/spark_api_server/Dockerfile
    command: [ "dockerize", "-wait", "tcp://sparkd:8000", "-timeout", "10s", "./spark_api_server", "run" ]
    environment:
-      - ASPNETCORE_ENVIRONMENT=Staging
+      - ASPNETCORE_ENVIRONMENT=${API_SERVER__ASPNETCORE_ENVIRONMENT}

-volumes:
-  sparkd_data:
-    name: "sparkd_${SPARKD__CONFIG_PORT:-8000}"
-  pubsub_data:
-    name: "pubsub_22019"
-  md_publisher_data:
-    name: "md_publisher_22019"
-  historic_md:
-    name: "historic_md"
-  md_recording:
-    name: "sparkd_md_recording_${SPARKD__CONFIG_PORT:-8000}"
-    external: true
+  sparkd-ping-test:
+    depends_on:
+      - sparkd
+    profiles:
+      - ping-test
+    build:
+      context: .
+      dockerfile_inline: |
+        FROM bluetradingsystems/linux_dotnet7
+        USER "root"
+        RUN apt-get update && apt-get -y install iputils-ping
+    command: [ "ping", "sparkd" ]
@@ -124,8 +124,8 @@ service OrderService {
 ```
 ### C++ Example
 ```cpp
-#include "spark/api/public/ServiceContext.h"
-#include "spark/api/services/OrderService.client.pb.h"
+#include "lib/api/public/ServiceContext.h"
+#include "lib/api/services/OrderService.client.pb.h"
 using namespace bts::api;
 ServiceContext ctx;
 auto orders = ctx.locate<orderman::OrderService>();
@@ -29,9 +29,9 @@ namespace sample {
 ```

 ```cpp
-#include "spark/api/public/ServiceContext.h"
-#include "spark/domain_model/Security.h"
-#include "spark/api/services/MarketDataService.client.pb.h"
+#include "lib/api/public/ServiceContext.h"
+#include "spark/lib/domain_model/Security.h"
+#include "lib/api/services/MarketDataService.client.pb.h"
 #include <thread>

 using namespace bts::api;
@@ -53,7 +53,7 @@ The status callback is called when the market for this security opens, closes, o
 // Subscribe to security trading status
 void IAlgoServices::subscribe_status(SecurityKey);
 // You implement
-virtual void on_status(SecurityKey, co2::TradingStatus) override;
+virtual void on_status(SecurityKey, domain::protobufs::TradingStatus) override;
 ```

 # Child Orders
@@ -1,942 +0,0 @@
-# Security ID handling in `sparkd`
-
-This document traces how security identifiers are created, translated, persisted,
-indexed, and published by the `sparkd` market-data paths. It focuses on the
-legacy CME MDP3/OnixS pipeline and the newer generalized market-data pipeline.
-
-## Executive summary
-
-`sparkd` uses two identifiers that must not be confused:
-
-| Identifier | Meaning | Typical field | Lifetime |
-|---|---|---|---|
-| Exchange/feed ID | The venue's identifier used to route incoming definitions, books, and trades | `FixedSecurity::numeric_id`, `ExchangeKey`, or `domain::Security::security_common.exchange_sec_id` | Feed/session-specific unless the source guarantees stability |
-| Spark security key | Spark's internal non-zero identifier used in shared memory, APIs, orders, positions, and downstream services | `FixedSecurity::key`, `api::Security::id()`, `SecurityKey`; historically also called `security_id` | Intended to be stable across restarts |
-
-`invalid_security_key` is `0`; a security with key `0` is not yet publicly
-discoverable through the shared-memory consumer path.
-
-The two principal paths differ:
-
- **MDP3/OnixS:** the definition callback sets only the CME ID in
-  `numeric_id`. `MDProducer::add_security()` allocates the shared-memory entry
-  with key `0`. `SecurityIDRecorder`, driven by a 200 ms dispatcher timer,
-  resolves or inserts a stable key in `key_ids.sqlite`; its callback finally
-  calls `MDProducerHandle::set_key()`.
- **Generalized/newer pipeline:** `GeneralMarketDataListener::on_securities()`
-  currently uses the ID already present on the incoming domain security
-  (`use_given_sec_key == true`). Live adapters normally obtain that ID
-  synchronously from `IDGenerator` first. `_copy_security_common()` then copies
-  it to both `FixedSecurity::key` and `numeric_id`, so
-  `MDProducer::add_security()` publishes it synchronously. Only the listener's
-  own fallback `IDGenerator` call is bypassed by the current constant.
-
-## End-to-end diagrams
-
-### CME MDP3 / OnixS
-
-```mermaid
-sequenceDiagram
-    participant FE as OnixS feed-engine thread
-    participant L as MDP3Listener
-    participant P as MDProducer / shared memory
-    participant Q as SecurityIDRecorder queues
-    participant D as sparkd dispatcher thread
-    participant DB as key_ids.sqlite
-
-    FE->>L: instrument definition (CME SecurityID)
-    L->>L: set_security_common() - numeric_id = CME SecurityID, key remains 0
-    L->>P: add_security(FixedSecurity)
-    P->>P: allocate hot + cold entries with key 0
-    P->>Q: ensure_key(handle)
-    L->>L: index[CME SecurityID] = handle
-    Note over FE,L: Books can route by CME ID while the Spark key is pending
-    D->>Q: every 200 ms - work_spreads(), work_handles(), work_db()
-    Q->>DB: find (namespace, descriptor), or insert a new row
-    DB-->>Q: SQLite rowid = Spark security key
-    Q->>P: handle.set_key(rowid)
-    P->>P: hot.key first, then cold security.key, then increment security_count
-    Note over P: The security is now public to shared-memory consumers
-```
-
-### Generalized/newer pipeline (current behavior)
-
-```mermaid
-sequenceDiagram
-    participant A as Venue adapter / plugin
-    participant DB as IDGenerator / key_ids.sqlite
-    participant G as GeneralMarketDataListener
-    participant I as GeneralSecurityIndex
-    participant P as MDProducer / shared memory
-
-    A->>DB: get_or_add(venue, type, adapter key)
-    DB-->>A: SQLite rowid as domain SecurityID
-    A->>G: on_securities(domain Security list with ID)
-    G->>G: _find_sec() - use incoming security_common.id
-    G->>G: _copy_security_common() - key = id, numeric_id = id
-    G->>P: add_security(FixedSecurity with non-zero key)
-    P->>P: set_key() during add_security()
-    G->>I: index[id] = handle
-    Note over G,P: No asynchronous ID assignment in the current configuration
-```
-
-## Data-flow charts
-
-The sequence diagrams above emphasize timing and thread transitions. These
-flowcharts emphasize which identifier is carried through each representation
-and where data is retained.
-
-### MDP3 / legacy data flow
-
-```mermaid
-flowchart TD
-    CME["CME MDP3 packets<br/>CME SecurityID"] --> ONIXS["OnixS feed engine<br/>decode definition and updates"]
-
-    ONIXS --> DEF["MDP3Listener definition callback"]
-    DEF --> FIXED["FixedSecurity<br/>numeric_id = CME SecurityID<br/>key = 0"]
-
-    FIXED --> PRODUCER["MDProducer::add_security"]
-    PRODUCER --> PENDING["Hot and cold shared memory<br/>allocated but not public<br/>key = 0"]
-    PRODUCER --> QUEUE["SecurityIDRecorder<br/>pending_handle queue"]
-
-    FIXED --> CMEINDEX["CMESecurityIndex<br/>CME SecurityID to handle"]
-
-    QUEUE --> TIMER["Dispatcher timer<br/>every 200 ms"]
-    TIMER --> LEGS{"Spread legs<br/>all resolved?"}
-    LEGS -- No --> UNRESOLVED["unresolved_legs<br/>exchange IDs awaiting keys"]
-    UNRESOLVED --> CMEINDEX
-    CMEINDEX --> LEGS
-    LEGS -- Yes or outright --> LOGICAL["Logical identity<br/>venue + type + security_desc"]
-
-    LOGICAL --> SELECT["SQLite SELECT<br/>key_ids.sqlite"]
-    SELECT -- Existing row --> ROWID["SQLite rowid<br/>Spark security key"]
-    SELECT -- Missing row --> INSERT["Batched SQLite INSERT"]
-    INSERT --> ROWID
-
-    ROWID --> SETKEY["MDProducerHandle::set_key"]
-    SETKEY --> HOT["Write hot-entry key"]
-    HOT --> COLD["Write cold security key"]
-    COLD --> COUNT["Increment security_count"]
-    COUNT --> PUBLIC["Public security<br/>visible to MDConsumer"]
-
-    ONIXS --> UPDATE["Book, trade, status, or RFQ<br/>carrying CME SecurityID"]
-    UPDATE --> CMEINDEX
-    CMEINDEX --> HANDLE["MDProducerHandle"]
-    HANDLE --> LIVE["Update live shared-memory data"]
-    PUBLIC --> LIVE
-```
-
-The CME index is usable before the Spark key is assigned, so feed updates can
-reach the internal handle while the security is still hidden from consumers.
-The persistent rowid crosses the publication boundary only at `set_key()`.
-
-### Generalized/newer data flow
-
-```mermaid
-flowchart TD
-    FEED["Venue feed, Databento,<br/>Python plugin, or replay"] --> ADAPTER["Source adapter<br/>build domain::Security"]
-
-    ADAPTER --> IDTYPE{"Live definition or<br/>recorded/pre-keyed input?"}
-    IDTYPE -- Live --> IDINPUT["Logical identity<br/>venue + type + adapter-chosen name"]
-    IDINPUT --> MUTEX["IDGenerator global mutex"]
-    MUTEX --> SELECT["Synchronous SQLite SELECT<br/>key_ids.sqlite"]
-    SELECT -- Existing row --> ROWID["SQLite rowid"]
-    SELECT -- Missing row --> INSERT["Synchronous SQLite INSERT<br/>autocommit"]
-    INSERT --> ROWID
-    ROWID --> DOMAINID["domain::SecurityID<br/>used as Spark ID"]
-    IDTYPE -- Recorded or pre-keyed --> DOMAINID
-
-    DOMAINID --> DOMAINSEC["SecurityCommon::id = Spark ID"]
-    DOMAINSEC --> LISTENER["GeneralMarketDataListener::on_securities"]
-    LISTENER --> CCMAP["cc_sec_id_map<br/>incoming ID to Spark ID"]
-    LISTENER --> CONVERT["_copy_security_common<br/>FixedSecurity.key = ID<br/>numeric_id = ID"]
-
-    CONVERT --> PRODUCER["MDProducer::add_security"]
-    PRODUCER --> SETKEY["Immediate set_key<br/>no recorder timer"]
-    SETKEY --> SHM["Hot and cold shared memory<br/>immediately public"]
-    CONVERT --> GENERALINDEX["GeneralSecurityIndex<br/>ID to handle"]
-
-    FEED --> EVENT["Book, trade, or statistics<br/>with exchange/source identity"]
-    EVENT --> EVENTMAP["Adapter map<br/>source identity to domain::SecurityID"]
-    EVENTMAP --> EVENTID["Event carries domain::SecurityID"]
-    EVENT --> PYHOT["Python bridge only<br/>synchronous IDGenerator lookup"]
-    PYHOT --> EVENTID
-    PYHOT -. uses same mutex and SQLite path .-> MUTEX
-    EVENTID --> CCMAP
-    CCMAP --> GENERALINDEX
-    GENERALINDEX --> HANDLE["MDProducerHandle"]
-    HANDLE --> SHMUPDATE["Update book, trade,<br/>statistics, or status"]
-    SHM --> SHMUPDATE
-
-```
-
-In the normal newer live path, persistence occurs before the definition enters
-the generalized listener. The DB call therefore adds synchronous adapter-side
-latency, but publication needs no later timer. Most adapters use an in-memory
-map for subsequent events; the dotted Python path is the documented exception.
-
-## The publication boundary
-
-`MDProducerHandle::set_key()` is the definitive publication point for the
-legacy shared-memory representation. Its write ordering is intentional:
-
-1. Write the key into the hot book entry (`HotEntry` or `HotDepthEntry`).
-2. Write the key into the cold security entry.
-3. Increment the cold header's public `security_count`.
-
-The cold security key is written last because consumers treat a non-zero cold
-key as visibility. At that moment the corresponding hot entry must already be
-addressable. `set_key()` only permits the transition from `0` to one key; it is
-not a key-update mechanism.
-
-## Identifier representations
-
-The names are historically inconsistent. In particular, many protobuf fields
-named `security_id` contain the **Spark key**, not the exchange's ID.
-
-| Layer | Exchange/feed identifier | Spark identifier |
-|---|---|---|
-| MDP3 wire/OnixS | `securityId()` | not present |
-| Legacy fixed security | `FixedSecurity::numeric_id` (`uint64_t`) | `FixedSecurity::key` / `security_key` (`uint32_t`) |
-| Legacy API security | venue-specific `exchange_id` | top-level `Security.id()` |
-| New domain model | `SecurityCommon::exchange_sec_id` (string) is descriptive; `SecurityCommon::id` is also used to correlate source events | `domain::SecurityID` (`uint64_t`), currently copied into the Spark key |
-| Shared-memory hot book | none | `HotEntry::key` or `HotDepthEntry::key` |
-| Shared-memory cold metadata | `FixedSecurity::numeric_id` | `FixedSecurity::key` |
-| CME runtime lookup | `CMESecurityIndex` key | `SecurityData::handle.key()` |
-| General runtime lookup | incoming/canonical `domain::SecurityID` | `GeneralSecurityIndex` key and `handle.key()` (currently the same value) |
-
-The generalized model declares `domain::SecurityID` as 64-bit, but the legacy
-shared-memory `security_key` remains 32-bit. `_copy_security_common()` assigns a
-64-bit value to both `numeric_id` and the 32-bit `key`. This is safe only while
-allocated IDs fit in 32 bits; unlike the legacy lookup path, this assignment has
-no explicit checked conversion.
-
-## Which parts use exchange IDs, descriptors, or Spark security IDs?
-
-The three identifier classes serve different jobs:
-
- **Exchange/external ID:** routes data inside a venue or vendor feed adapter.
- **Descriptor/natural key:** recognizes a definition logically at the
-  persistence, discovery, or human-facing boundary.
- **Spark security ID/key:** joins the instrument to books, orders, fills,
-  positions, and services after publication.
-
-The core downstream system does not repeatedly identify a security from its
-description. The description is primarily used to obtain a Spark key; after
-that boundary, most joins use the numeric Spark key.
-
-### Component-level usage matrix
-
-| Component or data path | Exchange/external ID | Descriptor or name | Spark security ID/key |
-|---|---|---|---|
-| CME MDP3 definition decoder | Reads `securityId()` and stores it in `FixedSecurity::numeric_id` | Copies definition symbol/tag 55 into `security_desc` | Leaves `FixedSecurity::key` at `0` initially |
-| `CMESecurityIndex` | Primary map key; CME ID resolves to a handle | Not used for update routing | Returns `handle.key()` when the Spark key has been assigned |
-| MDP3 books, trades, status, statistics, and RFQs | Incoming CME ID selects the handle through `CMESecurityIndex` | Not used to locate each update | The selected handle writes keyed shared-memory/trade data after publication |
-| MDP3 spread definitions | Each leg initially contains `legSecurityId()` as `exchange_key` | Parent `security_desc` identifies the spread's DB row | Each leg's Spark key and then the parent Spark key must be resolved before publication |
-| Legacy ICE OnixS | Uses ICE `marketId` as `numeric_id` and index key | ICE security description becomes the logical lookup name | Uses the same recorder-assigned Spark key pattern as MDP3 |
-| `SecurityIDRecorder` | Does not allocate from the external ID | Uses `(venue, security type, securities::descriptor())` to find/create a row | Treats the SQLite rowid as the resulting Spark key |
-| Native generalized adapters | Use exchange strings/numeric IDs to parse definitions and correlate updates | Usually pass a description or exchange instrument name to `IDGenerator` | Put the returned ID into `SecurityCommon::id` and later events |
-| Databento adapter | Uses `msg.hd.instrument_id` for feed correlation and its in-memory map | Uses the decimal instrument ID string—not the human description—as the `IDGenerator` name | Caches `instrument_id -> domain::SecurityID` and places that ID on books/trades |
-| Python bridge | Reads `exchange_security_id` from definitions, books, and trades | Uses that external-ID string as the `IDGenerator` name | Resolves it to `domain::SecurityID`; currently performs this lookup for every event |
-| `IDGenerator` | Does not interpret whether `name` came from an exchange ID | Uses exactly `(venue, type, caller-supplied name)` | Returns the SQLite rowid as a 64-bit ID |
-| `GeneralMarketDataListener` | Does not route on `exchange_sec_id` directly | Copies `sec.desc()` into fixed metadata; its disabled fallback allocator would use `sec.desc()` | Uses incoming `SecurityCommon::id`, maps events through `cc_sec_id_map`, and copies the value into both `key` and `numeric_id` |
-| `GeneralSecurityIndex` | No separate external-ID concept in the current use-given path | Not used | Maps the generalized ID/Spark key to `MDProducerHandle` |
-| `MDProducer` / shared memory | Retains `numeric_id`; in legacy feeds this is the exchange ID, but in the generalized path it is currently the Spark ID | Stores `security_desc` in the cold definition | Uses the key in hot/cold entries; non-zero key is the visibility boundary |
-| `MDConsumer` | Not normally used to find live books | Can enumerate/filter converted security definitions | Finds handles and book data by `security_key` |
-| `SecurityCache` / `securities.sqlite` | Preserves venue-specific exchange data inside the serialized security blob | Maintains descriptor/name lookup indexes and supports venue/type/name queries | Primary persisted definition key is `api::Security.id()` |
-| MBO processor and MBO service | May retain exchange **order** IDs, which are separate from security exchange IDs | Not used to find the instrument | Indexes snapshots and requests by `SecurityKey`; MBO protobuf `security_id` means Spark key |
-| Order manager and algorithms | Execution gateways eventually use venue-specific fields from the resolved security to encode orders | Descriptions appear in logs and errors, not as the primary join | Order definitions, subscriptions, book events, native orders, spread legs, and fills use `security_key` / `Security.id()` |
-| Position, PNL, and risk services | Not used as their position join | May resolve metadata for display/reporting | Positions, fills, overrides, and PNL handles are keyed by Spark security ID |
-| Relay and market-data recordings | Serialized security definitions may preserve venue exchange IDs | Preserve full descriptors in recorded definitions | Books, updates, trades, and replay correlation preserve the recorded Spark key |
-| Synthetic security service | No venue exchange ID; synthetics use `VENUE_BTS` | Synthetic name is the recorder's logical descriptor | Recorder assigns the SQLite rowid and synthetic metadata is keyed by it |
-
-### Exchange/external IDs: where they stop
-
-In MDP3 the separation is explicit:
-
-```text
-CME SecurityID
-    -> FixedSecurity.numeric_id
-    -> CMESecurityIndex lookup
-    -> MDProducerHandle
-    -> Spark security_key for downstream publication
-```
-
-The external CME ID continues to route feed messages but does not become the
-order/position key. This permits the same downstream Spark key to survive a
-restart as long as the logical descriptor mapping remains in
-`key_ids.sqlite`, even if the feed must rediscover the CME routing ID.
-
-The generalized path collapses more of these roles:
-
-```text
-exchange/vendor identity
-    -> adapter calls IDGenerator
-    -> domain::SecurityID
-    -> FixedSecurity.key and FixedSecurity.numeric_id
-    -> GeneralSecurityIndex and downstream Spark key
-```
-
-`SecurityCommon::exchange_sec_id` may still contain the original textual
-external identifier, but `GeneralMarketDataListener` does not use it to route
-events and does not put it in `numeric_id`. The adapter must translate later
-events to `domain::SecurityID` before invoking the listener.
-
-### Descriptor/name users
-
-Descriptors are used in three main places:
-
-1. **Key allocation:** `SecurityIDRecorder` uses the legacy venue-specific
-   descriptor, while `IDGenerator` uses its caller-provided `name`.
-2. **Definition lookup and discovery:** `SecurityCache` supports
-   venue/type/name lookup; symbol filters and administrative tools use security
-   metadata to select or display instruments.
-3. **Diagnostics:** logs include symbols and descriptions so humans can
-   understand a numeric key.
-
-Descriptions generally do not drive the high-rate book, trade, order, fill, or
-position paths. Those paths use numeric IDs after definition resolution.
-
-It is important that “descriptor” does not mean one universal canonical field:
-
- Legacy CME uses Globex `security_desc` from tag 55.
- Many generalized adapters use `sec.desc()` or an exchange instrument name.
- Databento uses its numeric instrument ID converted to a string.
- Python uses `exchange_security_id`.
-
-Therefore, two adapters may describe the same economic contract but request
-different logical rows and receive different Spark IDs.
-
-### Spark security-ID users
-
-Once a security is published, its Spark key is the dominant system identifier:
-
-```mermaid
-flowchart LR
-    KEY["Spark security key"] --> SHM["Hot/cold shared memory"]
-    KEY --> MDC["MDConsumer and book subscriptions"]
-    KEY --> MBO["MBO snapshots and queries"]
-    KEY --> OMS["Orders, algorithms, and spread legs"]
-    KEY --> FILLS["Fills and execution records"]
-    KEY --> POS["Positions, PNL, and risk"]
-    KEY --> API["Services and client APIs"]
-    KEY --> REC["Relay and market-data recordings"]
-    KEY --> SECDB["Serialized security definitions"]
-```
-
-Fields named `security_id`, `security_key`, or top-level `Security.id()` in
-these downstream areas almost always mean the Spark key. They should not be
-compared directly with CME `SecurityID`, Databento `instrument_id`, or another
-venue/vendor identifier without going through the relevant adapter/index
-mapping.
-
-## Persistence and allocation
-
-### The authoritative key mapping: `key_ids.sqlite`
-
-Both allocators use `SqliteStore("key_ids")`. With the normal configuration the
-file is:
-
-```text
-<SystemConfig.data_path>/databases/key_ids/key_ids.sqlite
-```
-
-The database contains one table and two indexes:
-
-```sql
-CREATE TABLE store (ns TEXT, key TEXT, value TEXT);
-CREATE UNIQUE INDEX key_index ON store(ns, key);
-CREATE INDEX ns_index ON store(ns);
-```
-
-The SQLite `rowid` is the generated Spark key. `ns` is normally
-`<VENUE>.<SECURITY_TYPE>` (for example `GLBX.FUTURE`), and `key` is the security
-descriptor chosen by the caller. `value` is normally empty. Therefore ID
-stability depends on all three of these remaining stable:
-
- the configured `data_path` and preservation of this database;
- the venue/type namespace;
- the descriptor supplied by the feed adapter.
-
-The two allocator implementations share the file and convention:
-
- `SecurityIDRecorder` (legacy): derives the namespace from legacy API enums and
-  uses `securities::descriptor()`. For CME this is the Globex
-  `security_desc`, populated from the definition's symbol/tag 55.
- `IDGenerator` (newer): derives the namespace from new domain enums and uses
-  the caller's `name`. Most adapters pass `sec.desc()` or an exchange instrument
-  identifier; Databento deliberately passes the decimal instrument ID, and the
-  Python bridge uses the exchange security ID.
-
-### Logical-row examples
-
-The following names are illustrative. Production uses the exact string emitted
-by the selected feed/adapter, including its case, spacing, and weekly-series
-notation.
-
-#### Legacy `SecurityIDRecorder`
-
-For CME, `set_security_common()` copies the MDP3 definition's symbol/tag 55 into
-Globex `security_desc`. After converting the fixed security to
-`api::Security`, `securities::descriptor()` returns that same
-`glbx.security_desc()` string.
-
-| Instrument | Legacy enums | Example descriptor from `security_desc` | Row searched/inserted in `store` |
-|---|---|---|---|
-| Future | `VENUE_GLBX`, `SECURITYTYPE_FUTURE` | `ESZ6` | `ns='GLBX.FUTURE', key='ESZ6'` |
-| Standard option | `VENUE_GLBX`, `SECURITYTYPE_OPTION` | `ESZ6 C6500` | `ns='GLBX.OPTION', key='ESZ6 C6500'` |
-| Weekly option | `VENUE_GLBX`, `SECURITYTYPE_OPTION` | `ESZ6-W1 C6500` | `ns='GLBX.OPTION', key='ESZ6-W1 C6500'` |
-| Spot from a legacy-compatible venue path | `VENUE_COINBASE`, `SECURITYTYPE_SPOT` | `BTC-USD` | `ns='COINBASE.SPOT', key='BTC-USD'` |
-
-A weekly option does not get a special namespace. Standard and weekly options
-are both `SECURITYTYPE_OPTION`, so both live in `GLBX.OPTION`; the exact
-`security_desc` distinguishes the weekly series. For example, if the database
-assigned rowids `42001` through `42004` to the rows above, those integers—not
-the descriptor strings—would be the Spark security keys.
-
-Conceptually, legacy allocation is:
-
-```text
-future:        lookup_or_insert("GLBX.FUTURE",  "ESZ6")
-option:        lookup_or_insert("GLBX.OPTION",  "ESZ6 C6500")
-weekly option: lookup_or_insert("GLBX.OPTION",  "ESZ6-W1 C6500")
-spot:          lookup_or_insert("COINBASE.SPOT", "BTC-USD")
-```
-
-#### Newer `IDGenerator`
-
-The namespace result is similar, but the third argument is chosen by the
-adapter. Examples using a description-oriented adapter are:
-
-```cpp
-get_or_add(VENUE_GLBX, SECURITY_TYPE_FUTURE, "ESZ6");
-// store: ns="GLBX.FUTURE", key="ESZ6"
-
-get_or_add(VENUE_GLBX, SECURITY_TYPE_OPTION, "ESZ6 C6500");
-// store: ns="GLBX.OPTION", key="ESZ6 C6500"
-
-get_or_add(VENUE_GLBX, SECURITY_TYPE_OPTION, "ESZ6-W1 C6500");
-// store: ns="GLBX.OPTION", key="ESZ6-W1 C6500"
-
-get_or_add(VENUE_COINBASE, SECURITY_TYPE_SPOT, "BTC-USD");
-// store: ns="COINBASE.SPOT", key="BTC-USD"
-```
-
-Databento intentionally produces a different logical row even when the human
-description is `ESZ6`. If its instrument ID were `12345678`, it would call the
-equivalent of:
-
-```cpp
-get_or_add(VENUE_GLBX, SECURITY_TYPE_FUTURE, "12345678");
-// store: ns="GLBX.FUTURE", key="12345678"
-```
-
-Likewise, the Python bridge uses `exchange_security_id`. A spot definition with
-`exchange_security_id="BTC-USD"` produces the `COINBASE.SPOT / BTC-USD` row,
-while a provider that sends `exchange_security_id="BTCUSD"` produces a
-different row and therefore a different Spark key.
-
-These examples show why the tuple is only logical when the adapter's naming
-contract is also known. `GLBX.FUTURE / ESZ6` and `GLBX.FUTURE / 12345678` may
-describe the same contract to a human but are distinct rows to `key_ids.sqlite`.
-
-Both enum-prefix removals currently produce the same namespace spelling (for
-example, `GLBX.OPTION`), so both mechanisms allocate from one global SQLite
-rowid space. Live rows cannot share a rowid. The table does not declare
-`AUTOINCREMENT`, however, so deleting rows—especially the highest row—can allow
-SQLite to reuse a number later. Security-key rows should therefore be treated
-as append-only operational data.
-
-`SqliteStore` uses WAL mode and `PRAGMA synchronous = 0`. This favors startup
-and feed latency over maximum durability against a host/power failure. The
-unique `(ns, key)` index prevents two different rows for the same logical
-security.
-
-### Other places the key is stored
-
-| Location | Purpose | Authoritative for allocation? |
-|---|---|---|
-| Hot and cold shared-memory segments | Live publication and fast consumer lookup | No; rebuilt at process startup |
-| `CMESecurityIndex` / `GeneralSecurityIndex` and adapter maps | In-process routing from an incoming ID to a producer handle | No; in-memory only |
-| `<data_path>/databases/md/securities.sqlite` | Serialized legacy `api::Security` definitions keyed by Spark key; used by security cache and MDP3 Sunday preload | No; it stores metadata after a key exists |
-| Relay/market-data recordings | Preserve the key embedded in recorded securities, books, and trades for deterministic replay | No; replay normally reuses the recorded value |
-| Orders, fills, positions, APIs | Reference a security by the published Spark key | No |
-
-The `SecurityIDRecorder::work_db()` comment says a published security is also
-recorded in the security database, but that function does **not** write
-`securities.sqlite` in the current code. Full security definitions are persisted
-separately by `SecurityCache::flush_to_disk()` through
-`db::insert_or_replace()`.
-
-## CME MDP3 / OnixS pipeline in detail
-
-### 1. Construction and thread setup
-
-`MDP3Main::PImpl` owns one `CMESecurityIndex`, one `SecurityIDRecorder`, and one
-`MDProducer`. It constructs the recorder with:
-
- a lookup callback that maps `ExchangeKey` through the CME index to the
-  handle's current Spark key; and
- `Dispatcher::current()`, which drives a 200 ms recorder timer.
-
-In the current `MarketDataGateway` route, `OnixsGlbxSubscription` creates a
-dedicated `dispatcher_thread`, constructs and starts `MDP3Main` on that thread,
-then calls that thread's dispatcher `run()`. The older `md run onixs` command
-uses its command/dispatcher thread similarly.
-
-The OnixS feed engine has its own configured thread pool. Instrument and market
-data callbacks therefore originate on OnixS feed-engine threads, while recorder
-database work and final key assignment execute on the MDP3 dispatcher thread.
-
-| MDP3 stage | Executing thread | DB call? |
-|---|---|---|
-| Decode definition and set CME `numeric_id` | OnixS feed-engine callback thread | No |
-| Allocate hot/cold entry and queue handle | Same OnixS callback thread | No |
-| Add CME-ID index entry | Same OnixS callback thread | No |
-| Resolve spread legs | MDP3 dispatcher thread, on 200 ms timer | No |
-| Select/insert Spark key | MDP3 dispatcher thread, on 200 ms timer | Yes |
-| `handle.set_key()` and public visibility | MDP3 dispatcher thread, in DB callback | No additional call |
-
-### 2. Definition callback: exchange ID is set, Spark key is not
-
-For futures, options, and spreads, `MDP3Listener::set_security_common()` does:
-
-```cpp
-fsec.numeric_id = def.securityId();
-```
-
-It also copies symbol/descriptor/venue and pricing fields. A newly constructed
-`FixedSecurity` already has `key == invalid_security_key` (`0`), and this helper
-does not change it.
-
-For a spread, every leg starts with:
-
-```cpp
-leg.exchange_key = ExchangeKey(definition_leg.legSecurityId());
-leg.key = invalid_security_key;
-```
-
-Thus both the parent and legs initially carry exchange-routing identity, but no
-Spark identity.
-
-### 3. Shared-memory allocation and exchange indexing
-
-`MDP3Listener::add_security()` performs these operations in order:
-
-1. `_producer.add_security(security)` allocates a hot entry and a variable-sized
-   cold entry and copies the security into the cold segment.
-2. Because the key is `0`, `MDProducer` queues the handle through
-   `SecurityIDRecorder::ensure_key()`.
-3. `_index.add_security(security.numeric_id, handle)` immediately creates the
-   CME-ID-to-handle mapping.
-4. The initial exchange status is written through the handle.
-
-This ordering means incoming books can already be routed by CME ID while the
-Spark key is pending. Shared-memory consumers cannot discover the security yet.
-Also, `MDProducerHandle::add_trade()` only appends to the public trade queue
-when `key() != 0`, so a trade received in this short window updates the cold
-last-trade state but is not added to the keyed trade log.
-
-### 4. Recorder tick: spreads, handles, then database
-
-Every 200 ms the recorder calls, in this exact order:
-
-1. `work_spreads()` tries to fill previously unresolved spread leg keys by
-   asking `CMESecurityIndex` for each leg exchange ID.
-2. `work_handles()` drains new handles. Outrights are converted to an API
-   security and queued for DB lookup immediately. A spread without all leg keys
-   is retained in `pending_handle` and its leg pointers are registered in
-   `unresolved_legs`.
-3. `work_db()` resolves queued `(venue, type, descriptor)` requests.
-
-Because spread work precedes new-handle work, a newly seen unresolved spread
-normally waits until at least the next timer tick to resolve legs. It waits
-longer if any outright leg has not yet received its Spark key. A spread's own
-key is not requested until every leg key is non-zero.
-
-### 5. Lookup or generation
-
-`work_db()` first queries `(ns, key)`:
-
- Existing row: use its `rowid` as the key and invoke the callback.
- Missing row: batch it into `insert_many_resolve_ids()`. SQLite assigns a new
-  rowid inside a transaction, the row object receives that ID, and the callback
-  runs after the transaction completes.
-
-New inserts are throttled to roughly 200 per timer pass (the current `> 200`
-check can admit 201) to avoid delaying heartbeats during startup. The queues are
-TBB concurrent queues, but all SQLite access is serialized onto the recorder's
-dispatcher thread. `check_access()` asserts this single-thread rule after the
-first work pass records the dispatcher thread ID.
-
-### 6. Final assignment and visibility
-
-The queued callback captures a copy of `MDProducerHandle` and calls
-`handle.set_key(id)` on the dispatcher thread. `set_key()` writes hot, then cold,
-then increments `security_count`. From this point:
-
- shared-memory scans report the security;
- `CMESecurityIndex::get_key(CME_ID)` returns the Spark key;
- trades and RFQs can be emitted with a non-zero key;
- resolved spreads can copy this key into their leg structures.
-
-### 7. Sunday preload is a fast path
-
-For configured symbols on Sunday, `MDP3Main::prepare_listener()` loads stored
-definitions from `securities.sqlite`. It converts them with
-`set_security_key=true`, so both the security key and spread leg keys come from
-the serialized API security. `MDProducer::add_security()` calls `set_key()`
-immediately, and no recorder lookup is required for that preloaded handle. The
-CME exchange ID is still restored into `numeric_id`, allowing the normal CME
-index to be built.
-
-## Generalized/newer pipeline in detail
-
-### 1. Topology and ownership
-
-`Run::run()` starts a detached thread named `MarketDataGateway`. On that thread,
-`run_md_gwy()` obtains the process-wide `IDGenerator`, constructs
-`MarketDataGateway`, and starts the configured providers. For each `(venue,
-source)` returned by a provider, the gateway creates an `MdSink` containing:
-
- a venue-local `GeneralSecurityIndex`;
- a default `MDProducer` (not wired to a `SecurityIDRecorder`); and
- a `GeneralMarketDataListener` connecting the source to that producer/index.
-
-The source decides its callback thread. Some sources call the listener while
-starting; others own network or replay threads. The generalized listener calls
-the producer inline on that source thread. The process-wide `IDGenerator`
-serializes its own calls with a mutex, but the listener's transient
-`cc_sec_id_map` is an ordinary `unordered_map`, so each source/listener pair is
-expected to serialize security/event callbacks.
-
-| Generalized stage | Executing thread | DB call? |
-|---|---|---|
-| Build/parse domain definition | Source/adaptor thread | No |
-| `IDGenerator::get_or_add()` | Same source/adaptor thread | Yes, synchronously |
-| `GeneralMarketDataListener::on_securities()` | Same source callback thread | No in current use-given mode |
-| Copy ID to `FixedSecurity::key` and `numeric_id` | Same source callback thread | No |
-| `MDProducer::add_security()` / `set_key()` | Same source callback thread | No additional call |
-| Add `GeneralSecurityIndex` entry | Same source callback thread | No |
-
-There are two important compatibility exceptions inside the provider framework:
-
- `OnixsGlbxSubscription::start()` ignores the supplied generalized listener
-  and starts `MDP3Main`; CME/OnixS therefore still follows the asynchronous
-  legacy flow documented above.
- `EmumbaDeribitSubscription::start()` also ignores that listener and uses
-  `EmMDListener`, which allocates via `IDGenerator` and writes through its own
-  producer/index. Its assignment is still synchronous and pre-populated, so it
-  resembles the newer ID flow even though it does not pass through
-  `GeneralMarketDataListener`.
-
-### 2. How a new ID is constructed
-
-For a normal live generalized adapter, ID creation happens **in the adapter,
-before** `GeneralMarketDataListener::on_securities()`:
-
-```text
-logical identity = (domain venue, domain security type, adapter-chosen name)
-Spark ID         = SQLite rowid for that identity in key_ids.sqlite
-```
-
-`IDGenerator::get_or_add(venue, type, name)` formats a namespace by stripping
-the enum prefixes:
-
-```text
-VENUE_TAIFEX + SECURITY_TYPE_FUTURE -> TAIFEX.FUTURE
-```
-
-It then calls `retrieve_one(ns, name)`. If the row exists, it returns that
-row's `rowid`. If absent, it inserts `(ns, name, "")`, and SQLite assigns the
-next rowid. That integer is wrapped in `domain::SecurityID` and placed in
-`SecurityCommon::id`.
-
-The third identity component is adapter-specific, and this matters when trying
-to reproduce a mapping:
-
-| Source/adaptor family | Typical `name` sent to `IDGenerator` |
-|---|---|
-| Binance, Coinbase, Deribit, OKX and similar native/CCAPI paths | Usually `sec.desc()` / exchange instrument name |
-| Taifex | product/instrument ID string |
-| Databento | `std::to_string(msg.hd.instrument_id)`, not the human-readable description |
-| Python bridge | `exchange_security_id` (and it asserts Python supplied ID is zero for definitions) |
-| Emumba Deribit | extracted Emumba security descriptor |
-| Replay | no new allocation for a recorded definition; it reuses the recorded `SecurityCommon::id` |
-
-So “security name” alone is not a universal logical key. Reproduction requires
-the exact venue enum, exact security-type enum, and the exact adapter-specific
-name used at insertion time.
-
-### 3. What `GeneralMarketDataListener` does with that ID
-
-`on_securities()` first calls `_find_sec(sec, true)`. Its current, compile-time
-behavior is controlled by:
-
-```cpp
-const bool use_given_sec_key = true;
-```
-
-Consequently, for a newly seen incoming `domain::SecurityID` it does **not**
-call the DB. It copies `security_common.id.value()` into its transient
-`cc_sec_id_map`. `_add_future()`, `_add_option()`, `_add_spread()`, or
-`_add_spot()` then calls `_copy_security_common()`, which sets:
-
-```cpp
-to.key = incoming_id;
-to.numeric_id = incoming_id;
-```
-
-This collapses the generalized source/correlation ID and Spark shared-memory
-key into the same number. The source's text `exchange_sec_id` remains on the
-domain security but is not copied into `FixedSecurity::numeric_id` by this
-path.
-
-`_commit_security()` then:
-
-1. calls `MDProducer::add_security()` with an already non-zero key;
-2. causes `MDProducerHandle::set_key()` to run immediately during that call;
-3. inserts the handle in `GeneralSecurityIndex` under `numeric_id` (the same
-   number); and
-4. returns with the security already visible in shared memory.
-
-Because the sink's producer has no recorder, supplying `id == 0` would allocate
-the shared-memory entry but never assign or publish its key. Generalized live
-sources must therefore provide a valid non-zero ID before `on_securities()`.
-
-The listener contains an alternative branch for `use_given_sec_key == false`.
-That branch would call `IDGenerator::get_or_add(me->venue, sec.type(),
-sec.desc())` itself. It is currently disabled, and `_generate_security_key()` is
-also effectively unused. Turning the flag off is not a mechanical change: an
-adapter such as Databento allocates using numeric instrument ID while the
-listener branch would use `sec.desc()`, potentially creating a second key for
-the same instrument.
-
-There is also a spread failure edge case. `_find_sec(sec, true)` records the
-parent ID in `cc_sec_id_map` before `_add_spread()` resolves its legs. If any leg
-ID is absent, `_add_spread()` logs and returns without committing the spread. A
-later repeat of the parent definition is then classified as a duplicate and
-ignored, so definition ordering is a hard requirement in the current code.
-
-### 4. How later books, trades, and statistics find the security
-
-Every later domain event carries a `domain::SecurityID`:
-
- `Book::security_id()`;
- `TradeRecord::sec_id`; or
- `SecurityMarketDataStatistics::security_id`.
-
-The listener first uses `cc_sec_id_map` to translate that event ID to the value
-stored in `GeneralSecurityIndex`, then obtains the `MDProducerHandle`. With
-`use_given_sec_key == true`, this mapping is numerically identity-to-identity,
-but it still serves as the admission check that the definition was seen.
-
-Most high-throughput adapters avoid SQLite on market-data events:
-
- Databento allocates on the definition and caches
-  `instrument_id -> domain::SecurityID` in `sec_id_map` for books/trades.
- Taifex keeps the resolved ID in its security-details mapper.
- Other native subscriptions maintain comparable descriptor/ID maps.
-
-The Python bridge is a notable exception: `to_bts_security_()`,
-`to_bts_trade_()`, and `to_book_()` all call `get_sec_id_()`, which calls
-`IDGenerator::get_id(..., add_if_new=true)`. As written, that performs at least
-one SQLite `SELECT` for each converted Python definition, trade, or book. It
-returns the existing ID after the first insert, but it is still a DB call and
-takes the global `IDGenerator` mutex on every event.
-
-### 5. Persistence timing and latency
-
-The newer allocator is synchronous:
-
- Existing security: mutex acquisition plus one SQLite `SELECT` on the caller's
-  thread.
- New security: mutex acquisition, one `SELECT`, then one SQLite `INSERT`
-  (SQLite autocommit), also on the caller's thread.
- Listener publication: no further DB call under the current
-  `use_given_sec_key` setting.
-
-The ID therefore exists in `key_ids.sqlite` before the adapter sends the
-definition to the listener. There is no intentional 200 ms publication delay,
-but the source callback/startup path directly pays DB and mutex latency. Bulk
-definition discovery performs one lookup and possibly one insert per security;
-`IDGenerator` does not batch those operations.
-
-WAL mode helps concurrency, while `synchronous=0` reduces fsync cost. It does
-not eliminate SQL parsing/stepping, mutex contention, page-cache misses, or
-occasional file-system work. The impact is usually a startup/definition cost
-when adapters cache the result, but it becomes hot-path latency for code such as
-the current Python bridge that resolves every event through the DB.
-
-`GeneralMarketDataListener` itself does not persist the full contract definition
-to `securities.sqlite`; that remains the separate security-cache/metadata
-persistence path described earlier.
-
-## Comparison: MDP3 recorder vs generalized allocator
-
-| Property | MDP3 / `SecurityIDRecorder` | Generalized / `IDGenerator` |
-|---|---|---|
-| Logical input | venue + type + legacy `security_desc` | venue + type + adapter-chosen name |
-| Numeric output | SQLite rowid, checked/read as 32-bit `security_key` | SQLite rowid returned as 64-bit `domain::SecurityID`, then narrowed into 32-bit shared-memory key |
-| Allocation point | After definition is copied to shared memory | Normally inside adapter before listener sees definition |
-| DB execution | Asynchronous on dispatcher timer | Synchronous on caller/source thread |
-| Existing ID cost | One deferred `SELECT` | One immediate `SELECT` per call |
-| New ID cost | Deferred, batched transaction (about 200/pass) | Immediate `SELECT` + individual autocommit `INSERT` |
-| Time until public | Usually 0–200+ ms; spreads may take extra ticks | Immediate after synchronous lookup/insert completes |
-| Feed callback blocking | Queue push only for ID work | Yes, if the adapter invokes `IDGenerator` there |
-| Spread legs | Parent waits asynchronously until all leg keys resolve by exchange ID | Definition processing requires every leg's incoming ID already exist in `cc_sec_id_map`; otherwise the spread is aborted |
-| Runtime ID relationship | Exchange ID and Spark key remain distinct | Incoming/canonical ID, `numeric_id`, index ID, and Spark key are currently the same number |
-| Persistence database | `key_ids.sqlite` | The same `key_ids.sqlite` |
-| Batching | Yes for new rows | No |
-| Failure behavior | Security has an internal handle with key 0 while normal queued work is pending; DB work does not block the feed callback | DB errors/zero results occur in the synchronous source path; a zero ID can leave an unpublishable entry, with no pending-key state machine |
-
-Neither algorithm generates a UUID or a content hash. Both ultimately use an
-opaque, database-assigned SQLite rowid. It is normally increasing and looks like
-a sequence, but this schema does not request SQLite `AUTOINCREMENT`. The tuple
-used to *look up* the row is logical; the resulting number is not derivable from
-that tuple.
-
-## Can another system reconstruct the same keys?
-
-Not from `(venue, type, name)` alone. Another system can reconstruct the
-**logical lookup tuple**, but it cannot calculate the numeric Spark key because
-the key depends on the historical insertion order of every row in
-`key_ids.sqlite`.
-
-For example, two empty systems can insert the exact same `GLBX.FUTURE / ESZ6`
-row and receive different IDs if other securities were inserted before it on
-one system. They are sequential opaque IDs, not deterministic hashes and not
-UUIDs.
-
-Ways to preserve cross-system identity are:
-
-1. Copy/replicate `key_ids.sqlite` (including rowids) and keep descriptor rules
-   identical. This preserves existing numeric keys but requires coordinated
-   allocation for new ones.
-2. Export an explicit mapping of `(namespace, adapter key) -> Spark key`, then
-   import rows with their original rowids before either system allocates new
-   securities.
-3. Treat a stable external identity (venue + type + exchange instrument ID, or
-   another canonical instrument identifier) as the cross-system key and carry a
-   translation table to each system's local Spark key.
-4. Introduce a deterministic ID scheme only as a versioned migration. A hash can
-   be computed independently, but collision handling, descriptor
-   canonicalization, aliases/renames, the existing 32-bit ABI, and compatibility
-   with orders/recordings/databases all need explicit design.
-
-Copying only `securities.sqlite` is insufficient as an allocator strategy. It
-contains security blobs keyed by already-assigned IDs, but `key_ids.sqlite` is
-the mapping used to find or allocate those IDs. Conversely, copying only
-`key_ids.sqlite` preserves the numbers but not all contract metadata.
-
-## Other assignment paths in `sparkd`
-
-The two main pipelines reduce to four ways a producer handle can acquire a key:
-
-1. **Already keyed input.** `MDProducer::add_security()` sees a non-zero
-   `FixedSecurity::key` and calls `set_key()` immediately. Generalized feeds,
-   Sunday preload, relay playback, and other replay paths use this mechanism.
-2. **Recorder-backed live input.** The input key is zero and the producer owns a
-   `SecurityIDRecorder`; `ensure_key()` queues asynchronous assignment. CME
-   MDP3 and legacy OnixS ICE use this mechanism. ICE uses `marketId` as
-   `numeric_id` and otherwise follows the same recorder/index design.
-3. **Service assignment.** `SyntheticSecurityService` calls
-   `SecurityIDRecorder::assign_key()` directly on a background dispatcher. The
-   callback receives a copied `api::Security` with its top-level `id` set, then
-   publishes it to synthetic subscribers. It uses the same `key_ids.sqlite`
-   rowid allocator.
-4. **Unkeyed input with no recorder.** The entry is allocated with key zero and
-   never becomes public. This is not a valid production assignment path, but it
-   is the failure mode if a generalized source omits its ID.
-
-Relay and replay deserve care when reasoning about persistence:
-
- The generalized `MDReplayer` forwards the recorded domain security ID and
-  emits later books/statistics with the recorded `sec_key`, so the listener's
-  current use-given mode preserves the recording's numeric identity.
- The legacy relay producer converts a recorded `api::Security` with
-  `set_security_key=true`, so its shared-memory publication also preserves the
-  embedded key.
- The legacy relay recorder additionally calls `bulk_insert(..., "REPLAY: ")`
-  for logical mappings. Those rows use a `REPLAY: ` namespace prefix; this is a
-  separate mapping population step, not a deterministic derivation of the key.
-
-## Operational implications
-
- Back up `key_ids.sqlite` and `securities.sqlite` together if numeric ID and
-  definition continuity matter.
- Do not delete/rebuild `key_ids.sqlite` on one host and assume IDs will match
-  another host, even when all instruments are identical.
- Before moving a feed between adapters, compare the exact `name` each adapter
-  supplies to `IDGenerator`. Matching venue/type is insufficient.
- Cache generated IDs in the source after definition processing. Avoid calling
-  `IDGenerator` from book/trade hot paths; the Python bridge currently violates
-  this guideline.
- Keep generated rowids below the 32-bit shared-memory ceiling until the
-  `security_key` ABI is widened or explicit bounds checking is added to the
-  generalized path.
- Ensure spread legs are announced before generalized spread parents.
- Treat `synchronous=0` as a durability decision. A copied DB should be taken
-  with SQLite-aware backup/checkpoint handling rather than by casually copying
-  active WAL files.
-
-Useful inspection queries (run against the configured DB path) are:
-
-```sql
-SELECT rowid AS spark_key, ns, key
-FROM store
-ORDER BY rowid;
-
-SELECT rowid AS spark_key, ns, key
-FROM store
-WHERE ns = 'GLBX.FUTURE' AND key = '<exact-adapter-key>';
-```
-
-## Source map
-
- [`SecurityIDRecorder.cpp`](../src/lib_spark/spark/md/SecurityIDRecorder.cpp):
-  legacy queues, 200 ms work ordering, logical row construction, DB callbacks,
-  and spread-leg resolution.
- [`IDGenerator.cpp`](../src/lib_spark/spark/persistence/IDGenerator.cpp):
-  synchronous generalized lookup/allocation and process-wide mutex.
- [`SqliteStore.cpp`](../src/lib_spark/spark/persistence/SqliteStore.cpp): DB
-  location, schema, WAL/synchronous pragmas, individual inserts, and batch
-  inserts.
- [`MDProducer.cpp`](../src/lib_spark/spark/md/MDProducer.cpp) and
-  [`MDProducerHandle.cpp`](../src/lib_spark/spark/md/MDProducerHandle.cpp):
-  shared-memory allocation, recorder handoff, and ordered publication.
- [`FixedSecurity.h`](../src/lib_spark/spark/md/Shm/FixedSecurity.h) and
-  [`MDStructure.h`](../src/lib_spark/spark/md/Shm/MDStructure.h): identifier
-  widths and hot/cold storage fields.
- [`MDP3Main.cpp`](../src/app_sparkd/sparkd/md/platforms/mdp3_onixs/MDP3Main.cpp)
-  and
-  [`MDP3Listener.h`](../src/app_sparkd/sparkd/md/platforms/mdp3_onixs/MDP3Listener.h):
-  MDP3 construction, definition callbacks, CME ID extraction, and spread legs.
- [`MDP3Listener.cpp`](../src/app_sparkd/sparkd/md/platforms/mdp3_onixs/MDP3Listener.cpp):
-  producer/index insertion order.
- [`OnixsGlbxSubscription.cpp`](../src/app_sparkd/sparkd/md/glbx/OnixsGlbxSubscription.cpp):
-  current dedicated MDP3 dispatcher-thread ownership.
- [`MarketDataGateway.cpp`](../src/app_sparkd/sparkd/md/MarketDataGateway.cpp)
-  and
-  [`GeneralMarketDataListener.cpp`](../src/lib_spark/spark/md/GeneralMarketDataListener.cpp):
-  generalized source/sink topology, incoming-ID mapping, fixed-security
-  conversion, and publication.
- [`DatabentoDataHandler.cpp`](../src/app_sparkd/sparkd/md/databento/DatabentoDataHandler.cpp),
-  [`TaifexDataProcessors.h`](../src/app_sparkd/sparkd/md/taifex/TaifexDataProcessors.h),
-  and
-  [`PyMarketDataSubscription.cpp`](../src/app_sparkd/sparkd/md/PyMarketDataSubscription.cpp):
-  representative adapter-side allocation and caching behavior.
- [`SecurityDB.cpp`](../src/lib_spark/spark/md/SecurityDB.cpp) and
-  [`SecurityCache.cpp`](../src/lib_spark/spark/md/SecurityCache.cpp): separate
-  persistence of full security definitions.
- [`SecurityIndex.h`](../src/lib_spark/spark/md/SecurityIndex.h),
-  [`MBOServiceServer.cpp`](../src/lib_spark/spark/md/MBOServiceServer.cpp), and
-  [`MDConsumer.cpp`](../src/lib_spark/spark/md/MDConsumer.cpp): exchange-index
-  translation followed by Spark-keyed market-data consumption and MBO access.
- [`OrderFactory.cpp`](../src/lib_spark/spark/orderman/order_factory/OrderFactory.cpp),
-  [`FillStore.cpp`](../src/lib_spark/spark/orderman/actors/FillStore.cpp), and
-  [`PositionMap.cpp`](../src/app_sparkd/sparkd/position/PositionMap.cpp):
-  representative downstream use of Spark security keys.
- [`MDReplayer.cpp`](../src/app_sparkd/sparkd/md/recording/MDReplayer.cpp) and
-  [`RelayClient.cpp`](../src/lib_spark/spark/md/relay/RelayClient.cpp): recorded
-  ID reuse.
@@ -1,44 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y pkg-config
-RUN apt-get update && apt-get install -y locales
-RUN apt-get update && apt-get install -y ca-certificates
-RUN apt-get update && apt-get install -y libssh2-1-dev
-RUN apt-get update && apt-get install -y software-properties-common
-RUN apt-get update && apt-get install -y sudo
-RUN apt-get update && apt-get install -y tzdata
-
-# GCC
-ARG gcc_major=13
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
-  && apt-get update \
-  && apt-get install -y g++-$gcc_major
-
-RUN apt-get update \
-  && apt-get install -y dotnet8
-
-RUN apt-get update && apt-get install -y gdb
-RUN apt-get update && apt-get install -y fish
-RUN apt-get update && apt-get install -y vim
-RUN apt-get update && apt-get install -y less
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-
-RUN \
-  groupadd -g "$docker_uid" "$docker_user" \
-  && useradd \
-  -m \
-  -u "$docker_uid" \
-  -g "$docker_uid" \
-  -G sudo \
-  --password "$(openssl passwd -1 "$docker_pass")" \
-  "$docker_user"
-
-USER bts
-WORKDIR /home/bts
@@ -1,11 +0,0 @@
-FROM ubuntu:24.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y \
-  fish \
-  less \
-  vim
-
-USER bts
-WORKDIR /home/bts
@@ -2,12 +2,13 @@ FROM ubuntu:22.04

 ARG DEBIAN_FRONTEND=noninteractive

-RUN apt-get update && apt-get install -y pkg-config
-RUN apt-get update && apt-get install -y locales
-RUN apt-get update && apt-get install -y ca-certificates
-RUN apt-get update && apt-get install -y libssh2-1-dev
-RUN apt-get update && apt-get install -y software-properties-common
-RUN apt-get update && apt-get install -y sudo
+RUN apt-get update \
+  && apt-get install -y pkg-config \
+  && apt-get install -y locales \
+  && apt-get install -y ca-certificates \
+  && apt-get install -y libssh2-1-dev \
+  && apt-get install -y software-properties-common \
+  && apt-get install -y sudo

 # GCC
 ARG gcc_major=13
@@ -1,42 +1,22 @@
 astroid==2.7.3
 autopep8==1.5.7
-blinker==1.9.0
-boto3==1.37.9
-botocore==1.37.9
 certifi==2023.5.7
 charset-normalizer==3.1.0
-click==8.1.8
 colorama==0.4.4
-Flask==3.1.0
 idna==3.4
 isort==5.9.3
-itsdangerous==2.2.0
-Jinja2==3.1.6
-jmespath==1.0.1
 lazy-object-proxy==1.6.0
-MarkupSafe==3.0.2
 mccabe==0.6.1
-numpy==2.2.6
 platformdirs==2.3.0
-protobuf==6.33.4
+protobuf==4.21.12
 pybars3==0.9.7
-pybind11==3.0.1
-pybind11-stubgen==2.5.5
-pybit==5.11.0
 pycodestyle==2.7.0
 pycparser==2.20
-pycryptodome==3.23.0
 pylint==2.10.2
 PyMeta3==0.5.1
-python-dateutil==2.9.0.post0
-python-dotenv==1.0.1
 requests==2.31.0
-s3transfer==0.11.4
-six==1.17.0
 termcolor==1.1.0
 toml==0.10.2
 urllib3==2.0.3
-websocket-client==1.8.0
-Werkzeug==3.1.3
 wrapt==1.12.1
 yapf==0.31.0
@@ -1,306 +1,103 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
+VisualStudioVersion = 17.3.32922.545
+MinimumVisualStudioVersion = 15.0.26124.0
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api", "src\client\spark_api\spark_api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Spark", "src\client\spark\Spark.csproj", "{9A4D4D07-1AB6-4B2B-B111-A4F34D6C267E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{684863A1-3396-4D31-A731-C0725CF07F4E}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Spark.Console", "src\client\Spark.Console\Spark.Console.csproj", "{387566C6-C6F6-412C-A30C-9855BBCB4816}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{45292808-4EF3-4D4A-B3F5-B75C42EE5870}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_core", "src\client\spark_core\spark_core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{AA57F8D9-7BD6-4161-881B-AD2CEF9A30F6}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_sdk", "src\client\spark_sdk\spark_sdk.csproj", "{6963C314-83C4-4667-B0D0-C2F7AE208C29}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.IO.Compression", "src\cs\Bts.IO.Compression\Bts.IO.Compression.csproj", "{28A26DF7-5F7A-43A2-A548-B55FEBCC3958}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_test", "src\client\spark_test\spark_test.csproj", "{ECD78CC5-138F-4809-A764-2358C2AC2E82}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\cs\Bts.Net\Bts.Net.csproj", "{7543386A-5EBA-4AF0-9E0F-35657B58557D}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_websocket", "src\client\spark_websocket\spark_websocket.csproj", "{3201359D-C071-4089-9EDE-B04D759F1508}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "DataStreamSuite", "DataStreamSuite", "{60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PubSub", "src\DataStreamSuite\PubSub\PubSub.csproj", "{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{F7C6F079-67BA-4899-9B43-D3F8C121D264}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ArithmeticExpressions", "src\DataStreamSuite\ArithmeticExpressions\ArithmeticExpressions.csproj", "{E60C119D-2919-4E2F-9D39-90DB1A8FF9A7}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BaseUtilities", "src\DataStreamSuite\BaseUtilities\BaseUtilities.csproj", "{ECBAA198-EC93-4174-8156-BDA5F5E95042}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BooleanExpressions", "src\DataStreamSuite\BooleanExpressions\BooleanExpressions.csproj", "{F54AE5C0-2ECA-4151-82E6-0D7EFE88FF40}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnExpressions", "src\DataStreamSuite\Bts.ColumnExpressions\Bts.ColumnExpressions.csproj", "{A898C6C3-F134-4AF0-AFB3-3834C58CC0D7}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnSortExpressions", "src\DataStreamSuite\Bts.ColumnSortExpressions\Bts.ColumnSortExpressions.csproj", "{1E296FB3-D185-4A95-A1EB-AA5B37B85C60}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamExpressions", "src\DataStreamSuite\DataStreamExpressions\DataStreamExpressions.csproj", "{B6070F41-8759-448B-B56D-A7D15D489569}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStream", "src\DataStreamSuite\DataStream\DataStream.csproj", "{B2D721AB-920C-4CD6-8DBF-6778A115A449}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedStreams", "src\DataStreamSuite\SharedStreams\SharedStreams.csproj", "{38EE36C6-892C-4C94-8BB0-1ACB164E1F20}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "client", "client", "{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "spark", "spark", "{42C014A0-00C5-0620-8552-38912E891A7F}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Spark", "src\client\spark\Spark.csproj", "{D432F3E9-3D2F-4623-B7B9-CEBA6701FFC3}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "spark_test", "src\client\spark_test\spark_test.csproj", "{DD00F5D5-6C2F-4FDA-AE3D-25CF01A9A224}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Spark.Console", "src\client\Spark.Console\Spark.Console.csproj", "{2B8243FF-60C6-4607-8AAE-7762D29B0A48}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api_server", "src\client\spark_api_server\spark_api_server.csproj", "{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
 		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|Any CPU = Release|Any CPU
+		MinSizeRel|x64 = MinSizeRel|x64
 		Release|x64 = Release|x64
-		Release|x86 = Release|x86
+		RelWithDebInfo|x64 = RelWithDebInfo|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Debug|Any CPU.ActiveCfg = Debug|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Debug|Any CPU.Build.0 = Debug|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Debug|x64.ActiveCfg = Debug|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Debug|x64.Build.0 = Debug|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Debug|x86.ActiveCfg = Debug|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Debug|x86.Build.0 = Debug|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Release|Any CPU.ActiveCfg = Release|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Release|Any CPU.Build.0 = Release|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Release|x64.ActiveCfg = Release|x64
-		{684863A1-3396-4D31-A731-C0725CF07F4E}.Release|x64.Build.0 = Release|x64
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-		{45292808-4EF3-4D4A-B3F5-B75C42EE5870}.Debug|Any CPU.ActiveCfg = Debug|x64
-		{45292808-4EF3-4D4A-B3F5-B75C42EE5870}.Debug|Any CPU.Build.0 = Debug|x64
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-		{45292808-4EF3-4D4A-B3F5-B75C42EE5870}.Debug|x86.Build.0 = Debug|x64
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-		{7543386A-5EBA-4AF0-9E0F-35657B58557D}.Release|x64.ActiveCfg = Release|Any CPU
-		{7543386A-5EBA-4AF0-9E0F-35657B58557D}.Release|x64.Build.0 = Release|Any CPU
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-		{7543386A-5EBA-4AF0-9E0F-35657B58557D}.Release|x86.Build.0 = Release|Any CPU
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}.Debug|x64.ActiveCfg = Debug|Any CPU
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-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}.Debug|x86.Build.0 = Debug|Any CPU
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}.Release|Any CPU.ActiveCfg = Release|Any CPU
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-		{F7C6F079-67BA-4899-9B43-D3F8C121D264}.Debug|x86.Build.0 = Debug|Any CPU
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+		{ECD78CC5-138F-4809-A764-2358C2AC2E82}.RelWithDebInfo|x64.ActiveCfg = Release|x64
+		{ECD78CC5-138F-4809-A764-2358C2AC2E82}.RelWithDebInfo|x64.Build.0 = Release|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.Debug|x64.ActiveCfg = Debug|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.Debug|x64.Build.0 = Debug|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.MinSizeRel|x64.ActiveCfg = Debug|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.MinSizeRel|x64.Build.0 = Debug|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.Release|x64.ActiveCfg = Release|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.Release|x64.Build.0 = Release|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.RelWithDebInfo|x64.ActiveCfg = Release|x64
+		{3201359D-C071-4089-9EDE-B04D759F1508}.RelWithDebInfo|x64.Build.0 = Release|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.Debug|x64.ActiveCfg = Debug|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.Debug|x64.Build.0 = Debug|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.MinSizeRel|x64.ActiveCfg = Debug|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.MinSizeRel|x64.Build.0 = Debug|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.Release|x64.ActiveCfg = Release|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.Release|x64.Build.0 = Release|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.RelWithDebInfo|x64.ActiveCfg = Release|x64
+		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.RelWithDebInfo|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{684863A1-3396-4D31-A731-C0725CF07F4E} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{45292808-4EF3-4D4A-B3F5-B75C42EE5870} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{AA57F8D9-7BD6-4161-881B-AD2CEF9A30F6} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{28A26DF7-5F7A-43A2-A548-B55FEBCC3958} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{7543386A-5EBA-4AF0-9E0F-35657B58557D} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{60E0D592-FFB3-0D0A-C4AA-E88919B48F9D} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{F7C6F079-67BA-4899-9B43-D3F8C121D264} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{E60C119D-2919-4E2F-9D39-90DB1A8FF9A7} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{ECBAA198-EC93-4174-8156-BDA5F5E95042} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{F54AE5C0-2ECA-4151-82E6-0D7EFE88FF40} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{A898C6C3-F134-4AF0-AFB3-3834C58CC0D7} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{1E296FB3-D185-4A95-A1EB-AA5B37B85C60} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{B6070F41-8759-448B-B56D-A7D15D489569} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{B2D721AB-920C-4CD6-8DBF-6778A115A449} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{38EE36C6-892C-4C94-8BB0-1ACB164E1F20} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{42C014A0-00C5-0620-8552-38912E891A7F} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{D432F3E9-3D2F-4623-B7B9-CEBA6701FFC3} = {42C014A0-00C5-0620-8552-38912E891A7F}
-		{DD00F5D5-6C2F-4FDA-AE3D-25CF01A9A224} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{2B8243FF-60C6-4607-8AAE-7762D29B0A48} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
+	EndGlobalSection
+	GlobalSection(Performance) = preSolution
+		HasPerformanceSessions = true
 	EndGlobalSection
 EndGlobal
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -11,20 +11,10 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-        <ProjectReference Include="..\..\cs\Bts.Spark.Core\Bts.Spark.Core.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-        <PackageReference Include="Bts.Spark.Core" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ArithmeticExpression">
    <Scanner Include="ArithmeticExpressionTokens.lex" />
@@ -1,9 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
-  
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
+
 </Project>
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -6,80 +6,23 @@ using Spark.Core.Collections;

 static class ArgumentComparer {
   public static int Compare(
-      IArgument value1, IArgument value2, IDictionary<string, object?> env) {
+      IArgument value1, IArgument value2, IDictionary<string,object?> env) {
      if (value1 is null) {
         throw new ArgumentNullException(nameof(value1));
      }
      if (value2 is null) {
         throw new ArgumentNullException(nameof(value2));
      }
-      var obj1 = value1.GetValue(env);
-      var obj2 = value2.GetValue(env);
-      if (obj1 is null) {
-         if (obj2 is null) {
-            return 0;
-         }
-         return -1;
-      }
-      if (obj2 is null) {
-         return 1;
-      }
-      return compareObjs(obj1, obj2);
-   }
-
-   static int compareObjs(object obj1, object obj2) {
+      var cmp1 = value1.Cast<IComparable>();
+      var cmp2 = value2.Cast<IComparable>();
      try {
-         var typ1 = obj1.GetType();
-         var typ2 = obj2.GetType();
-         bool areSameTypes = typ1 == typ2;
-         if (areSameTypes) {
-            return ((IComparable)obj1).CompareTo(obj2);
-         }
-         if (typ1.IsNumeric()) {
-            return tryCompareNumeric(obj1, obj2);
-         } else if (typ2.IsNumeric()) {
-            return -tryCompareNumeric(obj2, obj1);
-         } else if (typ1.IsEnum) {
-            if (typ2 == typeof(string)) {
-               return -((string)obj2).CompareTo(obj1.ToString());
-            }
-         } else if (typ1 == typeof(string)) {
-            return ((string)obj1).CompareTo(obj2.ToString());
-         } else if (typ1 == typeof(DateTime)) {
-            if (typ2 == typeof(TimeSpan)) {
-               return ((DateTime)obj1).Ticks.CompareTo(((TimeSpan)obj2).Ticks);
-            }
-         } else if (typ1 == typeof(TimeSpan)) {
-            if (typ2 == typeof(DateTime)) {
-               return ((TimeSpan)obj1).Ticks.CompareTo(((DateTime)obj2).Ticks);
-            }
-         }
+         var v1 = cmp1.GetValue(env);
+         var v2 = cmp2.GetValue(env);
+         return v1.GetType().IsNumeric() ?
+            new NumericComparer().Compare(v1, v2) : v1.CompareTo(v2);
      } catch (Exception ex) {
         Log.Ui.error($"Comparison failed: {ex}");
         throw;
      }
-      throw new ArgumentException("Failed to compare obj1 and obj2", nameof(obj1));
-   }
-
-   static int tryCompareNumeric(object numericObj1, object obj2) {
-      var typ2 = obj2.GetType();
-      if (typ2.IsNumeric()) {
-         return new NumericComparer().Compare(numericObj1, obj2);
-      } else if (typ2.IsEnum) {
-         var undTyp2 = typ2.GetEnumUnderlyingType();
-         if (undTyp2 == typeof(byte)) {
-            return new NumericComparer().Compare(numericObj1, (byte)obj2);
-         }
-         if (undTyp2 == typeof(short)) {
-            return new NumericComparer().Compare(numericObj1, (short)obj2);
-         }
-         if (undTyp2 == typeof(int)) {
-            return new NumericComparer().Compare(numericObj1, (int)obj2);
-         }
-         if (undTyp2 == typeof(long)) {
-            return new NumericComparer().Compare(numericObj1, (long)obj2);
-         }
-      }
-      throw new ArgumentException("Failed to compare numeric obj1 and obj2", nameof(obj2));
   }
 }
@@ -1,30 +1,20 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Google.Protobuf" Version="3.24.3" />
-    <PackageReference Include="YaccLexTools" Version="1.2.3" />
+    <PackageReference Include="YaccLexTools" Version="1.2.0" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-        <ProjectReference Include="..\..\cs\Bts.Spark.Core\Bts.Spark.Core.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-        <PackageReference Include="Bts.Spark.Core" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
  
  <ItemGroup>
    <Scanner Include="BooleanExpressionTokens.lex" />
@@ -24,6 +24,8 @@ namespace QUT.GplexBuffers
        public BufferException(string message) : base(message) { }
        public BufferException(string message, Exception innerException)
            : base(message, innerException) { }
+        protected BufferException(SerializationInfo info, StreamingContext context)
+            : base(info, context) { }
    }

    internal abstract class ScanBuff
@@ -58,10 +60,12 @@ namespace QUT.GplexBuffers
            return new BuildBuffer(source);
        }

+#if (!BYTEMODE)
        public static ScanBuff GetBuffer(Stream source, int fallbackCodePage)
        {
            return new BuildBuffer(source, fallbackCodePage);
        }
+#endif // !BYTEMODE
 #endif // !NOFILES
    }

@@ -349,15 +353,17 @@ namespace QUT.GplexBuffers
        {
            FileStream fStrm = (stream as FileStream);
            if (fStrm != null) FileName = fStrm.Name;
-            NextBlk = BlockReaderFactory.Get(stream);
+            NextBlk = BlockReaderFactory.Raw(stream);
        }

+#if (!BYTEMODE)
        public BuildBuffer(Stream stream, int fallbackCodePage)
        {
            FileStream fStrm = (stream as FileStream);
            if (fStrm != null) FileName = fStrm.Name;
            NextBlk = BlockReaderFactory.Get(stream, fallbackCodePage);
        }
+#endif

        /// <summary>
        /// Marks a conservative lower bound for the buffer,
@@ -428,19 +434,43 @@ namespace QUT.GplexBuffers
    //
    internal static class BlockReaderFactory
    {
+        public static BlockReader Raw(Stream stream)
+        {
+            return delegate(char[] block, int index, int number)
+            {
+                byte[] b = new byte[number];
+                int count = stream.Read(b, 0, number);
+                int i = 0;
+                int j = index;
+                for (; i < count; i++, j++)
+                    block[j] = (char)b[i];
+                return count;
+            };
+        }

-        public static BlockReader Get(Stream stream, int fallbackCodePage = -2)
+#if (!BYTEMODE)
+        public static BlockReader Get(Stream stream, int fallbackCodePage)
        {
            Encoding encoding;
            int preamble = Preamble(stream);

            if (preamble != 0)  // There is a valid BOM here!
                encoding = Encoding.GetEncoding(preamble);
-            else if (fallbackCodePage >= 0) // Anything but "guess"
+            else if (fallbackCodePage == -1) // Fallback is "raw" bytes
+                return Raw(stream);
+            else if (fallbackCodePage != -2) // Anything but "guess"
                encoding = Encoding.GetEncoding(fallbackCodePage);
            else // This is the "guess" option
-                encoding = GuessEncoding(stream);
-
+            {
+                int guess = new Guesser(stream).GuessCodePage();
+                stream.Seek(0, SeekOrigin.Begin);
+                if (guess == -1) // ==> this is a 7-bit file
+                    encoding = Encoding.ASCII;
+                else if (guess == 65001)
+                    encoding = Encoding.UTF8;
+                else             // ==> use the machine default
+                    encoding = Encoding.Default;
+            }
            StreamReader reader = new StreamReader(stream, encoding);
            return reader.Read;
        }
@@ -458,14 +488,6 @@ namespace QUT.GplexBuffers
            int b2 = stream.ReadByte();
            if (b0 == 0xef && b1 == 0xbb && b2 == 0xbf)
                return 65001; // UTF8
-
-            int b3 = stream.ReadByte();
-            // Check for UTF-32 BOM (Byte Order Mark)
-            if (b0 == 0x00 && b1 == 0x00 && b2 == 0xFE && b3 == 0xFF)
-                return 12001; // UTF-32BE
-            if (b0 == 0xFF && b1 == 0xFE && b2 == 0x00 && b3 == 0x00)
-                return 12000; // UTF-32LE
-
            //
            // There is no unicode preamble, so we
            // return denoter for the machine default.
@@ -473,150 +495,7 @@ namespace QUT.GplexBuffers
            stream.Seek(0, SeekOrigin.Begin);
            return 0;
        }
-
-        private static Encoding GuessEncoding(Stream stream)
-        {
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsUtf16(stream, out Encoding encoding))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return encoding;
-            }
-
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsUtf8(stream))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return Encoding.UTF8;
-            }
-
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsAscii(stream))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return Encoding.ASCII;
-            }
-
-#if !NET462_OR_GREATER
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsLatin1(stream))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return Encoding.Latin1;
-            }
-#endif
-            stream.Seek(0, SeekOrigin.Begin);
-            return Encoding.Default;
-        }
-
-        private static bool IsUtf8(Stream stream)
-        {
-            int b;
-            while ((b = stream.ReadByte()) != -1)
-            {
-                if ((b & 0x80) == 0) // 0xxxxxxx
-                {
-                    continue;
-                }
-                else if ((b & 0xE0) == 0xC0) // 110xxxxx 10xxxxxx
-                {
-                    if (!IsValidUtf8ContinuationByte(stream)) return false;
-                }
-                else if ((b & 0xF0) == 0xE0) // 1110xxxx 10xxxxxx 10xxxxxx
-                {
-                    if (!IsValidUtf8ContinuationByte(stream) || !IsValidUtf8ContinuationByte(stream)) return false;
-                }
-                else if ((b & 0xF8) == 0xF0) // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-                {
-                    if (!IsValidUtf8ContinuationByte(stream) || !IsValidUtf8ContinuationByte(stream) || !IsValidUtf8ContinuationByte(stream)) return false;
-                }
-                else
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        private static bool IsValidUtf8ContinuationByte(Stream stream)
-        {
-            int b = stream.ReadByte();
-            return b != -1 && (b & 0xC0) == 0x80; // 10xxxxxx
-        }
-
-        private static bool IsUtf16(Stream stream, out Encoding encoding)
-        {
-            encoding = Encoding.Default;
-
-            if (stream.Length >= 2)
-            {
-                // Read the first two bytes
-                int b0 = stream.ReadByte();
-                int b1 = stream.ReadByte();
-
-                // Check for UTF-16 BOM (Byte Order Mark)
-                if (b0 == 0xFF && b1 == 0xFE)
-                {
-                    encoding = Encoding.Unicode;
-                    return true; // UTF-16LE
-                }
-                if (b0 == 0xFE && b1 == 0xFF)
-                {
-                    encoding = Encoding.BigEndianUnicode;
-                    return true; // UTF-16BE
-                }
-
-                // Reset the stream position
-                stream.Seek(0, SeekOrigin.Begin);
-
-                // Check for common UTF-16 patterns
-                byte[] buffer = new byte[2];
-                while (stream.Read(buffer, 0, 2) == 2)
-                {
-                    if (buffer[0] == 0x00 && buffer[1] != 0x00)
-                    {
-                        encoding = Encoding.BigEndianUnicode;
-                        return true; // Likely UTF-16BE
-                    }
-                    if (buffer[0] != 0x00 && buffer[1] == 0x00)
-                    {
-                        encoding = Encoding.Unicode;
-                        return true; // Likely UTF-16LE
-                    }
-                }
-            }
-
-            return false;
-        }
-
-        private static bool IsAscii(Stream stream)
-        {
-            int b;
-            while ((b = stream.ReadByte()) != -1)
-            {
-                // Latin1 includes byte values from 0x00 to 0xFF
-                if (b > 0x7F)
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        private static bool IsLatin1(Stream stream)
-        {
-            int b;
-            while ((b = stream.ReadByte()) != -1)
-            {
-                // Latin1 includes byte values from 0x00 to 0xFF
-                if (b > 0xFF)
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
+#endif // !BYTEMODE
    }
 #endif // !NOFILES
    #endregion Buffer classes
@@ -661,6 +540,180 @@ namespace QUT.GplexBuffers
            return 0;
        }
    }
+#region guesser
+#if (!BYTEMODE)
+    // ==============================================================
+    // ============          Encoding Guesser           =============
+    // ==============================================================
+
+    /// <summary>
+    /// This class provides a simple finite state automaton that
+    /// scans the file looking for (1) valid UTF-8 byte patterns,
+    /// (2) bytes >= 0x80 which are not part of a UTF-8 sequence.
+    /// The method then guesses whether it is UTF-8 or maybe some 
+    /// local machine default encoding.  This works well for the
+    /// various Latin encodings.
+    /// </summary>
+    internal class Guesser
+    {
+        ScanBuff buffer;
+
+        public int GuessCodePage() { return Scan(); }
+
+        const int maxAccept = 10;
+        const int initial = 0;
+        const int eofNum = 0;
+        const int goStart = -1;
+        const int INITIAL = 0;
+        const int EndToken = 0;
+
+        #region user code
+        /* 
+         *  Reads the bytes of a file to determine if it is 
+         *  UTF-8 or a single-byte code page file.
+         */
+        public long utfX;
+        public long uppr;
+        #endregion user code
+
+        int state;
+        int currentStart = startState[0];
+        int code;
+
+        #region ScannerTables
+        static int[] startState = new int[] { 11, 0 };
+
+        #region CharacterMap
+        static sbyte[] map = new sbyte[256] {
+/*     '\0' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*   '\x10' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*   '\x20' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      '0' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      '@' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      'P' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      '`' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      'p' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*   '\x80' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\x90' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\xA0' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\xB0' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\xC0' */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
+/*   '\xD0' */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
+/*   '\xE0' */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 
+/*   '\xF0' */ 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5 };
+        #endregion
+
+        static sbyte[][] nextState = new sbyte[][] {
+            new sbyte[] {0, 0, 0, 0, 0, 0},
+            new sbyte[] {-1, -1, 10, -1, -1, -1},
+            new sbyte[] {-1, -1, -1, -1, -1, -1},
+            new sbyte[] {-1, -1, 8, -1, -1, -1},
+            new sbyte[] {-1, -1, 5, -1, -1, -1},
+            new sbyte[] {-1, -1, 6, -1, -1, -1},
+            new sbyte[] {-1, -1, 7, -1, -1, -1},
+            null,
+            new sbyte[] {-1, -1, 9, -1, -1, -1},
+            null,
+            null,
+            new sbyte[] {-1, 1, 2, 3, 4, 2}
+        };
+
+
+        [SuppressMessage("Microsoft.Performance", "CA1810:InitializeReferenceTypeStaticFieldsInline")]
+        // Reason for suppression: cannot have self-reference in array initializer.
+        static Guesser()
+        {
+            nextState[7] = nextState[2];
+            nextState[9] = nextState[2];
+            nextState[10] = nextState[2];
+        }
+
+        int NextState()
+        {
+            if (code == ScanBuff.EndOfFile)
+                return eofNum;
+            else
+                return nextState[state][map[code]];
+        }
+        #endregion
+
+        public Guesser(System.IO.Stream file) { SetSource(file); }
+
+        public void SetSource(System.IO.Stream source)
+        {
+            this.buffer = new BuildBuffer(source);
+            code = buffer.Read();
+        }
+
+        int Scan()
+        {
+            for (; ; )
+            {
+                int next;
+                state = currentStart;
+                while ((next = NextState()) == goStart)
+                    code = buffer.Read();
+
+                state = next;
+                code = buffer.Read();
+
+                while ((next = NextState()) > eofNum)
+                {
+                    state = next;
+                    code = buffer.Read();
+                }
+                if (state <= maxAccept)
+                {
+                    #region ActionSwitch
+#pragma warning disable 162
+                    switch (state)
+                    {
+                        case eofNum:
+                            switch (currentStart)
+                            {
+                                case 11:
+                                    if (utfX == 0 && uppr == 0) return -1; /* raw ascii */
+                                    else if (uppr * 10 > utfX) return 0;   /* default code page */
+                                    else return 65001;                     /* UTF-8 encoding */
+                                    break;
+                            }
+                            return EndToken;
+                        case 1: // Recognized '{Upper128}',	Shortest string "\xC0"
+                        case 2: // Recognized '{Upper128}',	Shortest string "\x80"
+                        case 3: // Recognized '{Upper128}',	Shortest string "\xE0"
+                        case 4: // Recognized '{Upper128}',	Shortest string "\xF0"
+                            uppr++;
+                            break;
+                        case 5: // Recognized '{Utf8pfx4}{Utf8cont}',	Shortest string "\xF0\x80"
+                            uppr += 2;
+                            break;
+                        case 6: // Recognized '{Utf8pfx4}{Utf8cont}{2}',	Shortest string "\xF0\x80\x80"
+                            uppr += 3;
+                            break;
+                        case 7: // Recognized '{Utf8pfx4}{Utf8cont}{3}',	Shortest string "\xF0\x80\x80\x80"
+                            utfX += 3;
+                            break;
+                        case 8: // Recognized '{Utf8pfx3}{Utf8cont}',	Shortest string "\xE0\x80"
+                            uppr += 2;
+                            break;
+                        case 9: // Recognized '{Utf8pfx3}{Utf8cont}{2}',	Shortest string "\xE0\x80\x80"
+                            utfX += 2;
+                            break;
+                        case 10: // Recognized '{Utf8pfx2}{Utf8cont}',	Shortest string "\xC0\x80"
+                            utfX++;
+                            break;
+                        default:
+                            break;
+                    }
+#pragma warning restore 162
+                    #endregion
+                }
+            }
+        }
+    } // end class Guesser
+    
+#endif // !BYTEMODE
+#endregion
 #endif // !NOFILES

 // End of code copied from embedded resource
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -10,20 +10,11 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="DataStreamCore" Version="$(SparkVersion)" />
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnExpression">
    <Scanner Include="ColumnExpressionTokens.lex" />
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -10,20 +10,11 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="DataStreamCore" Version="$(SparkVersion)" />
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnSortExpression">
    <Scanner Include="ColumnSortExpressionTokens.lex" />
@@ -0,0 +1 @@
+VITE_DATASTREAM_WEBSOCKET_URL=wss://localhost:8443/ws
@@ -0,0 +1 @@
+VITE_DATASTREAM_WEBSOCKET_URL=wss://localhost:8443/ws
@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.VisualStudio.JavaScript.Sdk/0.5.128-alpha">
+  <PropertyGroup>
+    <StartupCommand>npm run dev</StartupCommand>
+    <JavaScriptTestRoot>src\</JavaScriptTestRoot>
+    <JavaScriptTestFramework>Jest</JavaScriptTestFramework>
+    <!-- Allows the build (or compile) script located on package.json to run on Build -->
+    <ShouldRunBuildScript>true</ShouldRunBuildScript>
+    <!-- Folder where production build objects will be placed -->
+    <PublishAssetsDirectory>$(MSBuildProjectDirectory)\distill</PublishAssetsDirectory>
+  </PropertyGroup>
+</Project>
@@ -0,0 +1,8 @@
+# React + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
@@ -0,0 +1,36 @@
+import importPlugin from "eslint-plugin-import";
+import reactPkg from "eslint-plugin-react";
+const { configs: reactConfigs } = reactPkg;
+import js from "@eslint/js";
+import defineConfig from "./vite.config.js";
+
+export default [
+  js.configs.recommended,
+  importPlugin.flatConfigs.recommended,
+  reactConfigs.flat.recommended,
+  reactConfigs.flat["jsx-runtime"],
+  {
+    files: ["**/*.{js,jsx}"],
+    languageOptions: {
+      ecmaVersion: "latest",
+      sourceType: "module",
+      globals: {
+        console: "readonly"
+      }
+    },
+    settings: {
+      "import/resolver": {
+        vite: {
+          viteConfig: defineConfig({ mode: "development" })
+        }
+      }
+    },
+    rules: {
+      semi: "error",
+      "prefer-const": "error",
+      "no-unused-vars": "warn",
+      "import/no-dynamic-require": "warn",
+      "import/no-nodejs-modules": "warn",
+    }
+  }
+];
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/ico" href="/logo.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>BTS Cloud Streams</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <clear />
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
+  </packageSources>
+  <disabledPackageSources>
+    <clear />
+  </disabledPackageSources>
+</configuration>
@@ -0,0 +1,46 @@
+{
+  "name": "bts.datastreamwebapp.client",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@angular/material": "^18.2.8",
+    "@emotion/react": "^11.13.3",
+    "@emotion/styled": "^11.13.0",
+    "@fontsource/noto-sans": "^5.1.0",
+    "@material/data-table": "^15.0.0-canary.423edc3dc.0",
+    "@mui/icons-material": "^6.1.4",
+    "@mui/material": "^6.1.4",
+    "@mui/x-data-grid": "^7.20.0",
+    "bulma": "^1.0.2",
+    "classnames": "^2.5.1",
+    "react": "^18.3.1",
+    "react-data-grid": "^7.0.0-beta.47",
+    "react-data-table-component": "^7.6.2",
+    "react-dom": "^18.3.1",
+    "react-json-view-lite": "^1.5.0",
+    "react-pro-sidebar": "^1.1.0",
+    "react-use-websocket": "^4.9.0",
+    "rpc-websockets": "^9.0.4"
+  },
+  "devDependencies": {
+    "@types/react": "^18.3.11",
+    "@types/react-dom": "^18.3.1",
+    "@vitejs/plugin-react": "^4.3.2",
+    "eslint": "^9.12.0",
+    "@eslint/js": "^9.12.0",
+    "eslint-plugin-import": "^2.31.0",
+    "eslint-plugin-react": "^7.37.1",
+    "eslint-plugin-react-hooks": "^5.0.0",
+    "eslint-plugin-react-refresh": "^0.4.12",
+    "eslint-import-resolver-vite": "^2.0.1",
+    "react-mui-sidebar": "^1.3.8",
+    "vite": "^5.4.9"
+  }
+}
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
@@ -0,0 +1,40 @@
+import { Sidebar, Menu, MenuItem, Submenu, Logo } from "react-mui-sidebar";
+import './App.css';
+
+const AnimatedSideBar = () => {
+  return (
+    <Sidebar className={"sidebar-container"} width={"270px"}>
+      <Logo img="https://adminmart.com/wp-content/uploads/2024/03/logo-admin-mart-news.png">
+        AdminMart
+      </Logo>
+      <Menu subHeading="HOME">
+        <MenuItem link="/" badge="true">
+          Modern
+        </MenuItem>
+        <MenuItem>eCommerce</MenuItem>
+        <MenuItem>Analytical</MenuItem>
+      </Menu>
+      <Menu subHeading="APPS">
+        <MenuItem>Chat</MenuItem>
+        <MenuItem>Calendar</MenuItem>
+      </Menu>
+      <Menu subHeading="OTHERS">
+        <Submenu title="Menu Level">
+          <MenuItem>Post</MenuItem>
+          <MenuItem>Details</MenuItem>
+          <Submenu title="Level 2">
+            <MenuItem>new</MenuItem>
+            <MenuItem>Hello</MenuItem>
+          </Submenu>
+        </Submenu>
+
+        <MenuItem>Chip</MenuItem>
+        <MenuItem target="_blank" link="google.com">
+          External Link
+        </MenuItem>
+      </Menu>
+    </Sidebar>
+  );
+};
+
+export default AnimatedSideBar;
@@ -0,0 +1,101 @@
+@use "@material/checkbox";
+@use "@material/icon-button";
+@use "@material/data-table/data-table";
+
+.root-div {
+  display: flex;
+  flex-direction: row;
+  align-items: flex-start;
+}
+
+.main-content-div {
+  display: flex;
+  flex-direction: row;
+}
+
+.title-div {
+  width: 100%;
+}
+
+.container {
+  display: flex;
+}
+
+.container-column {
+  display: flex;
+  flex-direction: column;
+}
+
+.container-row {
+  display: flex;
+  flex-direction: row;
+  align-items: stretch;
+}
+
+box.query-input-form {
+   /* p: 2, display: "flex", flexFlow: "column", alignItems: "stretch"  */
+  display: flex;
+  flex-flow: column;
+  align-items: stretch;
+}
+
+/* li.ps-menuitem-root:hover {
+  background-color: #ff9922;  
+} */
+
+.container-row-centered {
+  display: flex;
+  flex-direction: row;
+  justify-content: center;
+  align-items: center;
+}
+
+h1#main-header {
+  padding: 4px 8px 4px 8px;
+  text-align: center;
+}
+
+td:hover {
+  background-color: cadetblue;
+}
+
+td#cell-decimal {
+  text-align: right;
+}
+
+td#cell-integer {
+  text-align: right;
+}
+
+td#cell-string {
+  text-align: center;
+}
+
+td#cell-date-time {
+  text-align: center;
+}
+
+/* Sidebar.css */
+/* .sidebar-container {
+  display: flex;
+  flex-direction: column;
+}
+
+.sidebar {
+  position: relative;
+  top: 0;
+  left: 0;
+  height: 100vh;
+  background-color: #333;
+  color: white;
+  overflow: hidden;
+  transition: transform 0.3s ease;
+}
+
+.sidebar.closed {
+  width: 0;
+}
+
+.sidebar.open {
+  width: 250px;
+} */
@@ -0,0 +1,173 @@
+import { ThemeProvider, CssBaseline, GlobalStyles } from '@mui/material';
+import QueryStatusView from './QueryStatusView';
+import useMediaQuery from '@mui/material/useMediaQuery';
+import QueryControl from './QueryControl';
+import DataTable from './DataTable';
+import { useState, useEffect, useMemo } from 'react';
+import useWebSocket, { ReadyState } from 'react-use-websocket';
+import Sidebar from './SideBar';
+import getTheme from './Theme';
+
+import '@fontsource/noto-sans';
+import './App.css';
+import './SideBar.css';
+
+const webSocketUrl = import.meta.env.VITE_DATASTREAM_WEBSOCKET_URL;
+// Always use the same subscription id (1), because we only show 1 table at a time.
+// The server will automatically dispose the previous subscription and start a new one
+// if we're currently subscribed to another query.
+const subscriptionId = "1";
+
+var rpcReqIdCounter = 1;
+
+function subscribeReq(query) {
+  return {
+    jsonrpc: "2.0",
+    id: rpcReqIdCounter++,
+    method: "subscribe",
+    params: {
+      subscription_id: subscriptionId,
+      query: query
+    }
+  };
+}
+
+function unsubscribeReq() {
+  return {
+    jsonrpc: "2.0",
+    id: rpcReqIdCounter++,
+    method: "unsubscribe",
+    params: {
+      subscription_id: subscriptionId,
+    }
+  };
+}
+
+const App = () => {
+  const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)');
+  const theme = getTheme({ mode: prefersDarkMode ? 'dark' : 'light' });
+  const globalStyles = {
+    ':root': {
+      '--primary-color': theme.palette.primary.main,
+      '--primary-dark-color': theme.palette.primary.dark,
+      '--secondary-color': theme.palette.secondary.main,
+      '--secondary-dark-color': theme.palette.secondary.dark,
+      '--background-color': theme.palette.background.default,
+    },
+  };
+  const [blueTable, setBlueTable] = useState({ columns: null, rows: null });
+  const [queryError, setQueryError] = useState(null);
+  const [queryState, setQueryState] = useState("Unsubscribed");
+  const queryStateDetails = useMemo(() => {
+    if (queryState == "Unsubscribed") {
+      return "Enter query above, then click the play button to subscribe";
+    }
+    if (queryState == "Subscribed") {
+      return null;
+    }
+  }, [queryState]);
+  const [sidebarIsOpen, setSidebarIsOpen] = useState(false);
+  const [cannedQuery, setCannedQuery] = useState(null);
+
+  const onCannedQueryClicked = (cannedQuery) => {
+    console.info(`Executing canned query: ${JSON.stringify(cannedQuery)}`);
+    const queryText = cannedQuery.query.join("\n");
+    setCannedQuery({ queryText: queryText, clickTime: Date.now() });
+    subscribe(queryText);
+  };
+
+  const { sendJsonMessage, getWebSocket, readyState } = useWebSocket(
+    webSocketUrl,
+    {
+      onOpen: (e) => console.info(`WebSocket open. ${JSON.stringify(e)}`),
+      onClose: (e) => console.info(`WebSocket closed. ${JSON.stringify(e)}`),
+      onError: (e) => console.error(`WebSocket error: ${JSON.stringify(e)}`),
+      shouldReconnect: () => true,
+    });
+
+  useEffect(() => {
+    console.info(`WebSocket readyState: ${readyState}`)
+    if (readyState != ReadyState.OPEN) {
+      return;
+    }
+    const ws = getWebSocket();
+    ws.onmessage = e => {
+      console.info(`Received message: ${e.data}`);
+      const msg = JSON.parse(e.data);
+      setQueryError(msg.error);
+      if (msg.error != null) {
+        setQueryState("Error");
+      } else if (msg.id != null) {
+        setQueryState(msg.result.status);
+      } else {
+        console.assert(msg.params.subscription_id == subscriptionId);
+        console.info(`Received rows: ${msg.params.table.all}`);
+        setBlueTable({ columns: msg.params.table.columns, rows: msg.params.table.all });
+      }
+    };
+  }, [getWebSocket, readyState]);
+
+  const subscribe = (query) => {
+    const req = subscribeReq(query);
+    console.info(`Subscribing: ${JSON.stringify(subscribeReq(query))}`);
+    sendJsonMessage(req);
+  };
+
+  const unsubscribe = () => {
+    const req = unsubscribeReq();
+    console.info(`Unsubscribing: ${JSON.stringify(req)}`);
+    sendJsonMessage(req);
+  };
+
+  const onOpened = () => {
+    setSidebarIsOpen(true);
+  };
+
+  const onClosed = () => {
+    setSidebarIsOpen(false);
+  };
+
+  const sidebarWidth = sidebarIsOpen ? '250px' : '65px';
+  return (
+    <ThemeProvider theme={theme}>
+      <CssBaseline />
+      <GlobalStyles styles={globalStyles} />
+      <div className='root-div'>
+        <div style={{
+          display: 'flex',
+          flexDirection: 'column',
+          alignItems: 'flex-start',
+          flexWrap: 'nowrap',
+          width: sidebarWidth,
+          transition: 'width 0.3s ease',
+        }}>
+          <Sidebar onSelection={onCannedQueryClicked} onOpened={onOpened} onClosed={onClosed} />
+        </div>
+        <div style={{
+          display: 'flex',
+          flexDirection: 'column',
+          left: sidebarWidth,
+          width: '100%',
+          transition: 'width 0.3s ease',
+        }}>
+          <div style={{ width: '100%', display: 'flex', flexDirection: 'column', alignItems: 'flex-start', margin: theme.spacing(2, 0, 0, 0) }}>
+            <div style={{ width: '90%', rightMargin: '100px' }}>
+              <QueryControl
+                queryState={queryState}
+                queryText={cannedQuery?.queryText}
+                queryTextResetTime={cannedQuery?.clickTime}
+                subscribe={subscribe}
+                unsubscribe={unsubscribe} />
+            </div>
+            <div style={{ width: '90%', rightMargin: '100px' }}>
+              <QueryStatusView queryState={queryState} details={queryStateDetails} error={queryError} />
+              <DataTable columns={blueTable?.columns ?? []} rows={blueTable?.rows ?? []} />
+            </div>
+          </div>
+        </div>
+      </div>
+    </ThemeProvider>
+  );
+};
+
+export default App;
@@ -0,0 +1,53 @@
+@use "@material/checkbox";
+@use "@material/icon-button";
+@use "@material/data-table/data-table";
+
+.data-grid-container {
+  overflow: auto;
+  white-space: nowrap;
+}
+
+
+.data-grid {
+  max-height: 1000px;
+}
+
+div[role=columnheader] {
+  border-top: 0px;
+  border-bottom: 0px;
+  background-color: var(--primary-dark-color);
+}
+
+/* div[role=columnheader] {
+  border-top: 0px;
+  border-bottom: 0px;
+  background-color: var(--primary-dark-color);
+}
+
+.rdg-row {
+  border: 0px;
+  border-top: 0px;
+  border-bottom: 0px;
+  background-color: rgba(var(--primary-dark-color), 0.8);
+  color: var(--primary-color);
+}
+
+.rdg-row-odd {
+  border: 0px;
+  border-top: 0px;
+  border-bottom: 0px;
+  background-color: var(--primary-dark-color);
+  color: var(--primary-color);
+}
+
+.rdg-cell {
+  border-bottom: 0px;
+}
+
+.rdg-cell.even {
+  border-bottom: 5px;
+}
+
+.rdg-cell.odd {
+  border-bottom: 5px;
+} */
@@ -0,0 +1,32 @@
+@use "@material/checkbox";
+@use "@material/icon-button";
+@use "@material/data-table/data-table";
+
+th {
+  font-size: large;  
+  padding: 15px;
+}
+
+td {
+  padding: 15px;
+}
+
+td:hover {
+  background-color: cadetblue;
+}
+
+td#cell-decimal {
+  text-align: right;
+}
+
+td#cell-integer {
+  text-align: right;
+}
+
+td#cell-string {
+  text-align: center;
+}
+
+td#cell-date-time {
+  text-align: center;
+}
@@ -0,0 +1,74 @@
+import PropTypes from 'prop-types';
+import { useTheme } from '@mui/material/styles';
+import { DataGrid } from '@mui/x-data-grid';
+import './DataGrid.css';
+import { useMemo, useState } from 'react';
+
+export default function DataTable({ columns, rows }) {
+  const theme = useTheme();
+  const [columnWidths, setColumnWidths] = useState({});
+
+  const handleColumnResize = (params) => {
+    const newWidth = params.width;
+    setColumnWidths((prevWidths) => ({
+      ...prevWidths,
+      [params.colDef.field]: params.width,
+    }));
+  };
+
+  const getGridColDef = useMemo(() => {
+    return col => {
+      return {
+        field: col.name,
+        headerName: col.name,
+        width: columnWidths[col.name],
+      };
+    };
+  }, [columnWidths]);
+
+  return (
+    <DataGrid
+      className='data-grid-container'
+      autosizeOnMount={false}
+      columns={columns?.map(getGridColDef) ?? []}
+      onColumnResize={handleColumnResize}
+      rows={rows ?? []}
+      sx={{
+        margin: theme.spacing(2, 0, 0, 0),
+        borderColor: 'primary.main',
+        backgroundColor: 'primary.dark',
+        color: 'text.primary',
+        '& .MuiDataGrid-columnHeader': {
+          color: 'primary.main',
+          fontWeight: 700,
+          backgroundColor: 'primary.dark'
+        },
+        '& .MuiDataGrid-filler': {
+          color: 'primary.main',
+          fontWeight: 700,
+          backgroundColor: 'primary.dark'
+        },
+        '& .MuiDataGrid-cell': {
+          color: 'text.primary',
+        },
+        '& .MuiDataGrid-cell:hover': {
+          color: 'primary.main',
+        },
+        '& .MuiDataGrid-row': {
+          '--DataGrid-rowBorderColor': 'secondary.dark'
+        }
+      }}
+    />
+  );
+}
+
+DataTable.propTypes = {
+  columns: PropTypes.arrayOf(
+    PropTypes.shape({
+      name: PropTypes.string.isRequired,
+      type: PropTypes.string.isRequired,
+    })
+  ).isRequired,
+  rows: PropTypes.arrayOf(PropTypes.array).isRequired,
+  apiRef: PropTypes.object,
+};
@@ -0,0 +1,119 @@
+import PropTypes from 'prop-types';
+import DataTable from './DataTable';
+import { useRef, useState, useEffect } from 'react';
+import { useGridApiRef } from '@mui/x-data-grid';
+import Box from '@mui/material/Box';
+import Button from '@mui/material/Button';
+import Grid from '@mui/material/Grid';
+import Paper from '@mui/material/Paper';
+import PlayArrowIcon from '@mui/icons-material/PlayArrow';
+import StopIcon from '@mui/icons-material/Stop';
+import TextField from '@mui/material/TextField';
+import Tooltip from '@mui/material/Tooltip';
+
+const QueryControl = (props) => {
+  const { queryState, queryText, queryTextResetTime, subscribe, unsubscribe } = props;
+  // const theme = useTheme();
+  let textInput = useRef();
+  const [queryTextChangeTime, setQueryTextChangeTime] = useState(null);
+  useEffect(() => {
+    if (queryText == null || textInput.current == null) {
+      return;
+    }
+    // Init text field (unless a non-empty string is already present, or the user has modified
+    // the query - we don't want to overwrite their changes).
+    if (queryTextChangeTime == null || queryTextResetTime > queryTextChangeTime) {
+      console.info(`Initializing query text: ${queryText}`)
+      textInput.current.value = queryText;
+    }
+  }, [queryText, queryTextChangeTime, queryTextResetTime]);
+  const onClearClick = () => {
+    textInput.current.value = '';
+  };
+
+  const onRunClick = () => {
+    subscribe(textInput.current.value);
+  };
+
+  const onStopClick = () => {
+    unsubscribe();
+  };
+
+  const onKeyDown = (e) => {
+    // Detect keyboard shortcuts.
+    //   Ctrl+Enter : Run
+    if (e.ctrlKey && e.key === 'Enter') {
+      onRunClick();
+    }
+  };
+
+  const onChange = (e) => {
+    // So we know not to overwrite the changes with the canned query on re-render
+    setQueryTextChangeTime(Date.now());
+  };
+
+  return (
+    <Box sx={{ display: "flex", flexFlow: "column" }}>
+      <Paper elevation={3} sx={{ color: 'primary.main' }}>
+        <Box sx={{ p: 2 }}>
+          <TextField
+            fullWidth
+            multiline
+            rows={10}
+            variant="outlined"
+            onChange={onChange}
+            onKeyDown={onKeyDown}
+            inputRef={textInput}
+            placeholder="Enter Query..."
+          />
+        </Box>
+        <Box sx={{ p: 2, borderTop: 1 }}>
+          <Grid container spacing={2} justifyContent="flex-start">
+            <Grid item xs>
+              <Tooltip title="Clear Query Text">
+                <Button onClick={onClearClick} sx={{ padding: '11px', color: 'text.dark' }}>
+                  Clear
+                </Button>
+              </Tooltip>
+            </Grid>
+            <Grid item>
+              <Tooltip title="Run (Ctrl+Enter)">
+                <Button onClick={onRunClick} sx={{
+                  color: `queryStartButton.${queryState}.color`,
+                  bgcolor: `queryStartButton.${queryState}.backgroundColor`,
+                  padding: '11px'
+                }}>
+                  <PlayArrowIcon />
+                </Button>
+              </Tooltip>
+            </Grid>
+            <Grid item>
+              <Tooltip title="Stop">
+                <Button onClick={onStopClick} sx={{
+                  color: `queryStopButton.${queryState}.color`,
+                  bgcolor: `queryStopButton.${queryState}.backgroundColor`,
+                  padding: '11px'
+                }}>
+                  <StopIcon />
+                </Button>
+              </Tooltip>
+            </Grid>
+          </Grid>
+        </Box>
+      </Paper>
+    </Box>
+  );
+};
+
+QueryControl.propTypes = {
+  columns: PropTypes.array,
+  rows: PropTypes.array,
+  isRunning: PropTypes.bool,
+  queryText: PropTypes.string,
+  queryTextResetTime: PropTypes.number,
+  queryState: PropTypes.string,
+  subscribe: PropTypes.func,
+  unsubscribe: PropTypes.func,
+};
+
+export default QueryControl;
@@ -0,0 +1,73 @@
+import { useState } from 'react';
+import PropTypes from 'prop-types';
+import { Box, Typography, Collapse } from '@mui/material';
+import Alert from '@mui/material/Alert';
+import AlertTitle from '@mui/material/AlertTitle';
+import { useTheme } from '@mui/material/styles';
+import { alpha } from '@mui/system';
+
+const QueryStatusView = ({ queryState, details, error }) => {
+  const theme = useTheme();
+  const [open, setOpen] = useState(false);
+
+  let header = queryState;
+  let headerContent = null;
+  const detailElements = [];
+  let severity = queryState == "Subscribed" ? "success" : "info";
+  let cursor = details == null ? "default" : "pointer";
+  if (error != null) {
+    severity = "error";
+    cursor = "pointer";
+    header = `Error Code: ${error.code}`;
+    headerContent = error.message;
+    detailElements.push(<Typography key="error-msg" variant="body1">{error.data.error_message}</Typography>);
+    detailElements.push(<Typography key="error-details" variant="subtitle1">Stack Trace:</Typography>);
+    (error.data.stack_trace ?? []).forEach((line, idx) => detailElements.push(
+      <Typography key={`stacktrace-${idx}`} variant="body2" component="pre" sx={{ whiteSpace: 'pre-wrap' }}>
+        {line}
+      </Typography>));
+  } else if (details != null) {
+    detailElements.push(<Typography key="status-msg" variant="body1">{details}</Typography>);
+  }
+  return (
+    <Box sx={{ margin: theme.spacing(2, 0, 0, 0) }}>
+      <Alert
+        severity={severity}
+        onClick={() => setOpen(!open)}
+        sx={{
+          margin: theme.spacing(2, 0, 0, 0),
+          cursor: cursor,
+        }}>
+        <AlertTitle>{header}</AlertTitle>
+        {headerContent}
+      </Alert>
+      {detailElements.length == 0
+        ? null
+        : <Collapse in={open}>
+          <Box
+            sx={{
+              backgroundColor: alpha(theme.palette[severity].light, 0.75),
+              color: theme.palette[severity].contrastText,
+              padding: theme.spacing(2),
+              marginTop: theme.spacing(0),
+              borderRadius: theme.shape.borderRadius,
+            }}
+          >
+            {detailElements}
+          </Box>
+        </Collapse>}
+    </Box>
+  );
+};
+
+QueryStatusView.propTypes = {
+  queryState: PropTypes.string,
+  details: PropTypes.string,
+  error: PropTypes.shape({
+    code: PropTypes.number,
+    message: PropTypes.string,
+    data: PropTypes.object,
+  })
+};
+
+export default QueryStatusView;
@@ -0,0 +1,27 @@
+import 'react-data-grid/lib/styles.css';
+import PropTypes from 'prop-types';
+import DataGrid from 'react-data-grid';
+import './DataGrid.css';
+
+function getGridColDef(col) {
+  return {
+    key: col.name,
+    name: col.name,
+  };
+}
+
+export default function ReactDataGrid({columns, rows}) {
+  return (
+    <DataGrid className={"data-grid"} rows={rows} columns={columns.map(getGridColDef)} />
+  );
+}
+
+ReactDataGrid.propTypes = {
+  columns: PropTypes.arrayOf(
+    PropTypes.shape({
+      name: PropTypes.string.isRequired,
+      type: PropTypes.string.isRequired,
+    })
+  ).isRequired,
+  rows: PropTypes.arrayOf(PropTypes.array).isRequired,
+};
@@ -0,0 +1,98 @@
+/* Sidebar.css */
+.app-container {
+  display: flex;
+  width: 100%;
+  overflow: hidden;
+  flex-direction: row;
+  justify-content: flex-start;
+  align-items: flex-start;
+}
+
+.sidebar {
+  display: flex;
+  flex-direction: row;
+  justify-content: flex-start;
+  align-items: flex-start;
+  background-color: transparent;
+  color: white;
+  overflow: hidden;
+  transition: width 0.3s ease;
+}
+
+.sidebar.open {
+  width: 100%;
+}
+
+.sidebar.closed {
+  width: 0%;
+}
+
+.sidebar-toggle-button {
+  border: 0px;
+  border-radius: 50%;
+  box-shadow: rgba(9, 30, 66, 0.08) 0px 0px 0px 1px, rgba(9, 30, 66, 0.08) 0px 2px 4px 1px;
+  color: var(--primary-color);
+  cursor: pointer;
+  height: 24px;
+  opacity: 1;
+  outline: 0px;
+  padding: 0px;
+  background-color: transparent;
+  transition: background-color 100ms linear 0s, color 100ms linear 0s, opacity 300ms cubic-bezier(0.2, 0, 0, 1) 0s, transform 300ms cubic-bezier(0.2, 0, 0, 1) 0s;
+  width: 20%;
+}
+
+.sidebar-toggle-button:hover {
+  transition: background-color 100ms linear 0s, color 100ms linear 0s, opacity 300ms cubic-bezier(0.2, 0, 0, 1) 0s, transform 300ms cubic-bezier(0.2, 0, 0, 1) 0s;
+}
+
+.main-content.open {
+  width: 165px;
+  transition: width 0.3s ease;
+  background-color: transparent;
+}
+
+.main-content.closed {
+  width: 0%;
+  /* min-width: 25px; */
+  transition: width 0.3s ease;
+  background-color: transparent;
+}
+
+.sidebar-menu-item {
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.sidebar-menu-item.open {
+  width: 100%;
+  /* justify-content: flex-start; */
+  transition: width 0.3s ease;
+}
+
+.sidebar-menu-item.closed {
+  width: 0%;
+  min-width: 0px;
+  /* justify-content: flex-start; */
+  transition: width 0.3s ease;
+}
+
+.sidebar-menu-item-content.open {
+  width: 100%;
+  /* justify-content: flex-start; */
+  transition: width 0.3s ease;
+}
+
+.sidebar-menu-item-content.closed {
+  width: 0px;
+  /* justify-content: flex-start; */
+  transition: width 0.3s ease;
+}
+
+/* Ensure span can shrink */
+.button-text {
+  display: block;    /* Make span a block element */
+  width: 100%;       /* Ensure it takes the full width of its parent */
+  overflow: hidden;  /* Hide any overflow content */
+  white-space: nowrap; /* Prevent text wrapping */
+}
@@ -0,0 +1,109 @@
+import { useState, useEffect } from 'react';
+import Button from '@mui/material/Button';
+import { useTheme } from '@mui/material/styles';
+import PropTypes from 'prop-types';
+import Tooltip from '@mui/material/Tooltip';
+import ChevronLeftRounded from "@mui/icons-material/ChevronLeftRounded";
+import ChevronRightRounded from '@mui/icons-material/ChevronRightRounded';
+import FileCopyIcon from '@mui/icons-material/FileCopy';
+import './SideBar.css';
+
+const Sidebar = ({ onSelection, onOpened, onClosed }) => {
+  const theme = useTheme();
+  const [isOpen, setIsOpen] = useState(false);
+  const [cannedQueries, setCannedQueries] = useState([]);
+  const Icon = isOpen ? ChevronLeftRounded : ChevronRightRounded;
+
+  const toggleIsOpen = () => {
+    if (isOpen) {
+      setIsOpen(false);
+      if (onClosed != null) {
+        onClosed();
+      }
+    } else {
+      setIsOpen(true);
+      if (onOpened != null) {
+        onOpened();
+      }
+    }
+  };
+
+  const onMenuItemClick = (event, cannedQuery) => {
+    console.info(`menu item clicked: ${cannedQuery.name}`);
+    onSelection(cannedQuery);
+  };
+
+  // const onMenuItemClick = async (event, cannedQuery) => {
+  //   try {
+  //     await navigator.clipboard.writeText(cannedQuery.query.join("\n"));
+  //     alert(`Copied ${cannedQuery.name} to clipboard`);
+  //   } catch (err) {
+  //     console.error('Failed to copy query text: ', err);
+  //   }
+  // };
+
+  useEffect(() => {
+    const fetchCannedQueries = async () => {
+      try {
+        const response = await fetch('api/cannedqueries');
+        const data = await response.json();
+        setCannedQueries(data);
+      } catch (error) {
+        console.error('Error fetching WebSocket config:', error);
+      }
+    };
+    fetchCannedQueries();
+  }, []);
+
+  const mainContentClass = `main-content ${isOpen ? 'open' : 'closed'}`;
+  const menuItemClass = `sidebar-menu-item ${isOpen ? 'open' : 'closed'}`;
+  const menuItemContentClass = `sidebar-menu-item-content ${isOpen ? 'open' : 'closed'}`;
+  const toggleButtonTitle = `${isOpen ? 'Hide' : 'Show'} Common Queries`;
+
+  return (
+    <div
+      className={"sidebar"}
+      style={{
+        display: 'flex',
+        flexDirection: 'row',
+        justifyContent: 'flexStart',
+        alignItems: 'flexStart',
+        margin: theme.spacing(2, 0, 0, 0)
+      }}
+    >
+      <div className={mainContentClass}>
+        {cannedQueries.map(cq =>
+          <Button key={cq.name} className={menuItemClass} onClick={(event) => onMenuItemClick(event, cq)}>
+            <div className={menuItemContentClass}>
+              <span className='button-text'>{cq.name}</span>
+            </div>
+          </Button>)
+        }
+        {/* {cannedQueries.map(cq =>
+          <Button
+            variant="contained"
+            color="primary"
+            startIcon={<FileCopyIcon />}
+            onClick={onMenuItemClick}
+          >
+            <div className={menuItemContentClass}>
+              <span className='button-text'>{cq.name}</span>
+            </div>
+          </Button>)} */}
+      </div>
+      <Tooltip title={toggleButtonTitle}>
+        <Button onClick={toggleIsOpen}>
+          <Icon className="w-5 h-5" />
+        </Button>
+      </Tooltip>
+    </div>
+  );
+};
+
+export default Sidebar;
+
+Sidebar.propTypes = {
+  onSelection: PropTypes.func,
+  onOpened: PropTypes.func,
+  onClosed: PropTypes.func,
+};
@@ -0,0 +1,112 @@
+import { createTheme } from '@mui/material/styles';
+import PropTypes from 'prop-types';
+import '@fontsource/noto-sans';
+import './App.css';
+
+const getLightPalette = () => {
+  return {
+    mode: 'light',
+    primary: {
+      light: '#6573c3',
+      main: '#3f51b5',
+      dark: '#2c387e',
+      contrastText: '#ffffff',
+    },
+    secondary: {
+      light: '#f73378',
+      main: '#f50057',
+      dark: '#ab003c',
+      contrastText: '#ffffff',
+    },
+    text: {
+      primary: '#000000c4',
+      secondary: '#00000086',
+      disabled: '#0000005b',
+      hint: '#0000005b',
+    }
+  };
+};
+
+const getDarkPalette = () => {
+  return {
+    mode: 'dark',
+    primary: {
+      light: '#bcc5ff',
+      main: '#33baf9',
+      dark: '#202334',
+      contrastText: '#78a2ac',
+    },
+    secondary: {
+      light: '#9fd0b8',
+      main: '#5eb289',
+      dark: '#ffffff12',
+      contrastText: '#c8d4f7',
+    },
+    action: {
+      hoverOpacity: 0.08
+    },
+    text: {
+      primary: '#eaf8f8',
+      dark: '#eaf8f8a0'
+    },
+    queryStartButton: {
+      Subscribed: {
+        color: '#33baf9',
+        backgroundColor: '#ffffff40',
+      },
+      Unsubscribed: {
+        color: '#ffffff40',
+        backgroundColor: '#ffffff00',
+      }
+    },
+    queryStopButton: {
+      Subscribed: {
+        color: '#ff4444a0',
+        backgroundColor: '#ffffff40',
+      },
+      Unsubscribed: {
+        color: '#ff444450',
+        backgroundColor: '#ffffff00',
+      }
+    },
+    error: {
+      light: '#e57373',
+      main: '#f44336',
+      dark: '#d32f2f',
+      contrastText: '#fff',
+    },
+    warning: {
+      light: '#ffb74d',
+      main: '#ff9800',
+      dark: '#f57c00',
+      contrastText: '#000',
+    },
+    info: {
+      light: '#64b5f6',
+      main: '#2196f3',
+      dark: '#303030',
+      contrastText: '#fff',
+    },
+    success: {
+      light: '#81c784',
+      main: '#4caf50',
+      dark: '#388e3c',
+      contrastText: '#000',
+    },
+  };
+};
+
+const getTheme = ({ mode }) => {
+  return createTheme({
+    typography: {
+      fontFamily: '"Helvetica"'
+    },
+    palette: mode == 'dark' ? getDarkPalette() : getLightPalette()
+  });
+};
+
+export default getTheme;
+
+getTheme.propTypes = {
+  mode: PropTypes.string.isRequired,
+};
@@ -0,0 +1 @@
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@@ -0,0 +1,51 @@
+.dark-high-contrast {
+  --md-sys-color-primary: rgb(251 250 255);
+  --md-sys-color-surface-tint: rgb(165 200 255);
+  --md-sys-color-on-primary: rgb(0 0 0);
+  --md-sys-color-primary-container: rgb(173 204 255);
+  --md-sys-color-on-primary-container: rgb(0 0 0);
+  --md-sys-color-secondary: rgb(250 250 255);
+  --md-sys-color-on-secondary: rgb(0 0 0);
+  --md-sys-color-secondary-container: rgb(159 208 255);
+  --md-sys-color-on-secondary-container: rgb(0 0 0);
+  --md-sys-color-tertiary: rgb(255 249 251);
+  --md-sys-color-on-tertiary: rgb(0 0 0);
+  --md-sys-color-tertiary-container: rgb(222 193 231);
+  --md-sys-color-on-tertiary-container: rgb(0 0 0);
+  --md-sys-color-error: rgb(255 249 249);
+  --md-sys-color-on-error: rgb(0 0 0);
+  --md-sys-color-error-container: rgb(255 186 177);
+  --md-sys-color-on-error-container: rgb(0 0 0);
+  --md-sys-color-background: rgb(17 19 24);
+  --md-sys-color-on-background: rgb(225 226 233);
+  --md-sys-color-surface: rgb(17 19 24);
+  --md-sys-color-on-surface: rgb(255 255 255);
+  --md-sys-color-surface-variant: rgb(67 71 78);
+  --md-sys-color-on-surface-variant: rgb(251 250 255);
+  --md-sys-color-outline: rgb(200 202 212);
+  --md-sys-color-outline-variant: rgb(200 202 212);
+  --md-sys-color-shadow: rgb(0 0 0);
+  --md-sys-color-scrim: rgb(0 0 0);
+  --md-sys-color-inverse-surface: rgb(225 226 233);
+  --md-sys-color-inverse-on-surface: rgb(0 0 0);
+  --md-sys-color-inverse-primary: rgb(0 42 83);
+  --md-sys-color-primary-fixed: rgb(219 231 255);
+  --md-sys-color-on-primary-fixed: rgb(0 0 0);
+  --md-sys-color-primary-fixed-dim: rgb(173 204 255);
+  --md-sys-color-on-primary-fixed-variant: rgb(0 22 49);
+  --md-sys-color-secondary-fixed: rgb(214 233 255);
+  --md-sys-color-on-secondary-fixed: rgb(0 0 0);
+  --md-sys-color-secondary-fixed-dim: rgb(159 208 255);
+  --md-sys-color-on-secondary-fixed-variant: rgb(0 24 42);
+  --md-sys-color-tertiary-fixed: rgb(249 222 255);
+  --md-sys-color-on-tertiary-fixed: rgb(0 0 0);
+  --md-sys-color-tertiary-fixed-dim: rgb(222 193 231);
+  --md-sys-color-on-tertiary-fixed-variant: rgb(33 14 42);
+  --md-sys-color-surface-dim: rgb(17 19 24);
+  --md-sys-color-surface-bright: rgb(55 57 62);
+  --md-sys-color-surface-container-lowest: rgb(12 14 19);
+  --md-sys-color-surface-container-low: rgb(25 28 32);
+  --md-sys-color-surface-container: rgb(29 32 36);
+  --md-sys-color-surface-container-high: rgb(40 42 47);
+  --md-sys-color-surface-container-highest: rgb(50 53 58);
+}
@@ -0,0 +1,51 @@
+.dark-medium-contrast {
+  --md-sys-color-primary: rgb(173 204 255);
+  --md-sys-color-surface-tint: rgb(165 200 255);
+  --md-sys-color-on-primary: rgb(0 22 49);
+  --md-sys-color-primary-container: rgb(112 146 198);
+  --md-sys-color-on-primary-container: rgb(0 0 0);
+  --md-sys-color-secondary: rgb(159 208 255);
+  --md-sys-color-on-secondary: rgb(0 24 42);
+  --md-sys-color-secondary-container: rgb(100 149 193);
+  --md-sys-color-on-secondary-container: rgb(0 0 0);
+  --md-sys-color-tertiary: rgb(222 193 231);
+  --md-sys-color-on-tertiary: rgb(33 14 42);
+  --md-sys-color-tertiary-container: rgb(162 136 171);
+  --md-sys-color-on-tertiary-container: rgb(0 0 0);
+  --md-sys-color-error: rgb(255 186 177);
+  --md-sys-color-on-error: rgb(55 0 1);
+  --md-sys-color-error-container: rgb(255 84 73);
+  --md-sys-color-on-error-container: rgb(0 0 0);
+  --md-sys-color-background: rgb(17 19 24);
+  --md-sys-color-on-background: rgb(225 226 233);
+  --md-sys-color-surface: rgb(17 19 24);
+  --md-sys-color-on-surface: rgb(251 250 255);
+  --md-sys-color-surface-variant: rgb(67 71 78);
+  --md-sys-color-on-surface-variant: rgb(200 202 212);
+  --md-sys-color-outline: rgb(160 163 171);
+  --md-sys-color-outline-variant: rgb(128 131 139);
+  --md-sys-color-shadow: rgb(0 0 0);
+  --md-sys-color-scrim: rgb(0 0 0);
+  --md-sys-color-inverse-surface: rgb(225 226 233);
+  --md-sys-color-inverse-on-surface: rgb(40 42 47);
+  --md-sys-color-inverse-primary: rgb(35 73 120);
+  --md-sys-color-primary-fixed: rgb(212 227 255);
+  --md-sys-color-on-primary-fixed: rgb(0 17 40);
+  --md-sys-color-primary-fixed-dim: rgb(165 200 255);
+  --md-sys-color-on-primary-fixed-variant: rgb(10 55 100);
+  --md-sys-color-secondary-fixed: rgb(206 229 255);
+  --md-sys-color-on-secondary-fixed: rgb(0 18 34);
+  --md-sys-color-secondary-fixed-dim: rgb(154 203 250);
+  --md-sys-color-on-secondary-fixed-variant: rgb(0 57 91);
+  --md-sys-color-tertiary-fixed: rgb(247 216 255);
+  --md-sys-color-on-tertiary-fixed: rgb(28 9 37);
+  --md-sys-color-tertiary-fixed-dim: rgb(218 189 226);
+  --md-sys-color-on-tertiary-fixed-variant: rgb(67 46 76);
+  --md-sys-color-surface-dim: rgb(17 19 24);
+  --md-sys-color-surface-bright: rgb(55 57 62);
+  --md-sys-color-surface-container-lowest: rgb(12 14 19);
+  --md-sys-color-surface-container-low: rgb(25 28 32);
+  --md-sys-color-surface-container: rgb(29 32 36);
+  --md-sys-color-surface-container-high: rgb(40 42 47);
+  --md-sys-color-surface-container-highest: rgb(50 53 58);
+}
@@ -0,0 +1,51 @@
+.dark {
+  --md-sys-color-primary: rgb(165 200 255);
+  --md-sys-color-surface-tint: rgb(165 200 255);
+  --md-sys-color-on-primary: rgb(0 49 94);
+  --md-sys-color-primary-container: rgb(34 72 118);
+  --md-sys-color-on-primary-container: rgb(212 227 255);
+  --md-sys-color-secondary: rgb(154 203 250);
+  --md-sys-color-on-secondary: rgb(0 51 83);
+  --md-sys-color-secondary-container: rgb(12 74 114);
+  --md-sys-color-on-secondary-container: rgb(206 229 255);
+  --md-sys-color-tertiary: rgb(218 189 226);
+  --md-sys-color-on-tertiary: rgb(61 41 70);
+  --md-sys-color-tertiary-container: rgb(85 63 93);
+  --md-sys-color-on-tertiary-container: rgb(247 216 255);
+  --md-sys-color-error: rgb(255 180 171);
+  --md-sys-color-on-error: rgb(105 0 5);
+  --md-sys-color-error-container: rgb(147 0 10);
+  --md-sys-color-on-error-container: rgb(255 218 214);
+  --md-sys-color-background: rgb(17 19 24);
+  --md-sys-color-on-background: rgb(225 226 233);
+  --md-sys-color-surface: rgb(17 19 24);
+  --md-sys-color-on-surface: rgb(225 226 233);
+  --md-sys-color-surface-variant: rgb(67 71 78);
+  --md-sys-color-on-surface-variant: rgb(195 198 207);
+  --md-sys-color-outline: rgb(141 145 153);
+  --md-sys-color-outline-variant: rgb(67 71 78);
+  --md-sys-color-shadow: rgb(0 0 0);
+  --md-sys-color-scrim: rgb(0 0 0);
+  --md-sys-color-inverse-surface: rgb(225 226 233);
+  --md-sys-color-inverse-on-surface: rgb(46 48 53);
+  --md-sys-color-inverse-primary: rgb(60 96 144);
+  --md-sys-color-primary-fixed: rgb(212 227 255);
+  --md-sys-color-on-primary-fixed: rgb(0 28 58);
+  --md-sys-color-primary-fixed-dim: rgb(165 200 255);
+  --md-sys-color-on-primary-fixed-variant: rgb(34 72 118);
+  --md-sys-color-secondary-fixed: rgb(206 229 255);
+  --md-sys-color-on-secondary-fixed: rgb(0 29 50);
+  --md-sys-color-secondary-fixed-dim: rgb(154 203 250);
+  --md-sys-color-on-secondary-fixed-variant: rgb(12 74 114);
+  --md-sys-color-tertiary-fixed: rgb(247 216 255);
+  --md-sys-color-on-tertiary-fixed: rgb(39 20 48);
+  --md-sys-color-tertiary-fixed-dim: rgb(218 189 226);
+  --md-sys-color-on-tertiary-fixed-variant: rgb(85 63 93);
+  --md-sys-color-surface-dim: rgb(17 19 24);
+  --md-sys-color-surface-bright: rgb(55 57 62);
+  --md-sys-color-surface-container-lowest: rgb(12 14 19);
+  --md-sys-color-surface-container-low: rgb(25 28 32);
+  --md-sys-color-surface-container: rgb(29 32 36);
+  --md-sys-color-surface-container-high: rgb(40 42 47);
+  --md-sys-color-surface-container-highest: rgb(50 53 58);
+}
@@ -0,0 +1,51 @@
+.light-high-contrast {
+  --md-sys-color-primary: rgb(0 34 70);
+  --md-sys-color-surface-tint: rgb(60 96 144);
+  --md-sys-color-on-primary: rgb(255 255 255);
+  --md-sys-color-primary-container: rgb(29 68 114);
+  --md-sys-color-on-primary-container: rgb(255 255 255);
+  --md-sys-color-secondary: rgb(0 36 61);
+  --md-sys-color-on-secondary: rgb(255 255 255);
+  --md-sys-color-secondary-container: rgb(3 70 110);
+  --md-sys-color-on-secondary-container: rgb(255 255 255);
+  --md-sys-color-tertiary: rgb(46 26 55);
+  --md-sys-color-on-tertiary: rgb(255 255 255);
+  --md-sys-color-tertiary-container: rgb(81 59 89);
+  --md-sys-color-on-tertiary-container: rgb(255 255 255);
+  --md-sys-color-error: rgb(78 0 2);
+  --md-sys-color-on-error: rgb(255 255 255);
+  --md-sys-color-error-container: rgb(140 0 9);
+  --md-sys-color-on-error-container: rgb(255 255 255);
+  --md-sys-color-background: rgb(249 249 255);
+  --md-sys-color-on-background: rgb(25 28 32);
+  --md-sys-color-surface: rgb(249 249 255);
+  --md-sys-color-on-surface: rgb(0 0 0);
+  --md-sys-color-surface-variant: rgb(224 226 236);
+  --md-sys-color-on-surface-variant: rgb(32 36 43);
+  --md-sys-color-outline: rgb(63 67 74);
+  --md-sys-color-outline-variant: rgb(63 67 74);
+  --md-sys-color-shadow: rgb(0 0 0);
+  --md-sys-color-scrim: rgb(0 0 0);
+  --md-sys-color-inverse-surface: rgb(46 48 53);
+  --md-sys-color-inverse-on-surface: rgb(255 255 255);
+  --md-sys-color-inverse-primary: rgb(228 236 255);
+  --md-sys-color-primary-fixed: rgb(29 68 114);
+  --md-sys-color-on-primary-fixed: rgb(255 255 255);
+  --md-sys-color-primary-fixed-dim: rgb(0 45 88);
+  --md-sys-color-on-primary-fixed-variant: rgb(255 255 255);
+  --md-sys-color-secondary-fixed: rgb(3 70 110);
+  --md-sys-color-on-secondary-fixed: rgb(255 255 255);
+  --md-sys-color-secondary-fixed-dim: rgb(0 47 77);
+  --md-sys-color-on-secondary-fixed-variant: rgb(255 255 255);
+  --md-sys-color-tertiary-fixed: rgb(81 59 89);
+  --md-sys-color-on-tertiary-fixed: rgb(255 255 255);
+  --md-sys-color-tertiary-fixed-dim: rgb(57 37 66);
+  --md-sys-color-on-tertiary-fixed-variant: rgb(255 255 255);
+  --md-sys-color-surface-dim: rgb(217 218 224);
+  --md-sys-color-surface-bright: rgb(249 249 255);
+  --md-sys-color-surface-container-lowest: rgb(255 255 255);
+  --md-sys-color-surface-container-low: rgb(243 243 250);
+  --md-sys-color-surface-container: rgb(237 237 244);
+  --md-sys-color-surface-container-high: rgb(231 232 238);
+  --md-sys-color-surface-container-highest: rgb(225 226 233);
+}
@@ -0,0 +1,51 @@
+.light-medium-contrast {
+  --md-sys-color-primary: rgb(29 68 114);
+  --md-sys-color-surface-tint: rgb(60 96 144);
+  --md-sys-color-on-primary: rgb(255 255 255);
+  --md-sys-color-primary-container: rgb(83 118 167);
+  --md-sys-color-on-primary-container: rgb(255 255 255);
+  --md-sys-color-secondary: rgb(3 70 110);
+  --md-sys-color-on-secondary: rgb(255 255 255);
+  --md-sys-color-secondary-container: rgb(71 121 163);
+  --md-sys-color-on-secondary-container: rgb(255 255 255);
+  --md-sys-color-tertiary: rgb(81 59 89);
+  --md-sys-color-on-tertiary: rgb(255 255 255);
+  --md-sys-color-tertiary-container: rgb(133 108 141);
+  --md-sys-color-on-tertiary-container: rgb(255 255 255);
+  --md-sys-color-error: rgb(140 0 9);
+  --md-sys-color-on-error: rgb(255 255 255);
+  --md-sys-color-error-container: rgb(218 52 46);
+  --md-sys-color-on-error-container: rgb(255 255 255);
+  --md-sys-color-background: rgb(249 249 255);
+  --md-sys-color-on-background: rgb(25 28 32);
+  --md-sys-color-surface: rgb(249 249 255);
+  --md-sys-color-on-surface: rgb(25 28 32);
+  --md-sys-color-surface-variant: rgb(224 226 236);
+  --md-sys-color-on-surface-variant: rgb(63 67 74);
+  --md-sys-color-outline: rgb(91 95 103);
+  --md-sys-color-outline-variant: rgb(119 123 131);
+  --md-sys-color-shadow: rgb(0 0 0);
+  --md-sys-color-scrim: rgb(0 0 0);
+  --md-sys-color-inverse-surface: rgb(46 48 53);
+  --md-sys-color-inverse-on-surface: rgb(240 240 247);
+  --md-sys-color-inverse-primary: rgb(165 200 255);
+  --md-sys-color-primary-fixed: rgb(83 118 167);
+  --md-sys-color-on-primary-fixed: rgb(255 255 255);
+  --md-sys-color-primary-fixed-dim: rgb(58 93 141);
+  --md-sys-color-on-primary-fixed-variant: rgb(255 255 255);
+  --md-sys-color-secondary-fixed: rgb(71 121 163);
+  --md-sys-color-on-secondary-fixed: rgb(255 255 255);
+  --md-sys-color-secondary-fixed-dim: rgb(43 96 137);
+  --md-sys-color-on-secondary-fixed-variant: rgb(255 255 255);
+  --md-sys-color-tertiary-fixed: rgb(133 108 141);
+  --md-sys-color-on-tertiary-fixed: rgb(255 255 255);
+  --md-sys-color-tertiary-fixed-dim: rgb(107 84 116);
+  --md-sys-color-on-tertiary-fixed-variant: rgb(255 255 255);
+  --md-sys-color-surface-dim: rgb(217 218 224);
+  --md-sys-color-surface-bright: rgb(249 249 255);
+  --md-sys-color-surface-container-lowest: rgb(255 255 255);
+  --md-sys-color-surface-container-low: rgb(243 243 250);
+  --md-sys-color-surface-container: rgb(237 237 244);
+  --md-sys-color-surface-container-high: rgb(231 232 238);
+  --md-sys-color-surface-container-highest: rgb(225 226 233);
+}
@@ -0,0 +1,51 @@
+.light {
+  --md-sys-color-primary: rgb(60 96 144);
+  --md-sys-color-surface-tint: rgb(60 96 144);
+  --md-sys-color-on-primary: rgb(255 255 255);
+  --md-sys-color-primary-container: rgb(212 227 255);
+  --md-sys-color-on-primary-container: rgb(0 28 58);
+  --md-sys-color-secondary: rgb(46 98 140);
+  --md-sys-color-on-secondary: rgb(255 255 255);
+  --md-sys-color-secondary-container: rgb(206 229 255);
+  --md-sys-color-on-secondary-container: rgb(0 29 50);
+  --md-sys-color-tertiary: rgb(110 86 118);
+  --md-sys-color-on-tertiary: rgb(255 255 255);
+  --md-sys-color-tertiary-container: rgb(247 216 255);
+  --md-sys-color-on-tertiary-container: rgb(39 20 48);
+  --md-sys-color-error: rgb(186 26 26);
+  --md-sys-color-on-error: rgb(255 255 255);
+  --md-sys-color-error-container: rgb(255 218 214);
+  --md-sys-color-on-error-container: rgb(65 0 2);
+  --md-sys-color-background: rgb(249 249 255);
+  --md-sys-color-on-background: rgb(25 28 32);
+  --md-sys-color-surface: rgb(249 249 255);
+  --md-sys-color-on-surface: rgb(25 28 32);
+  --md-sys-color-surface-variant: rgb(224 226 236);
+  --md-sys-color-on-surface-variant: rgb(67 71 78);
+  --md-sys-color-outline: rgb(116 119 127);
+  --md-sys-color-outline-variant: rgb(195 198 207);
+  --md-sys-color-shadow: rgb(0 0 0);
+  --md-sys-color-scrim: rgb(0 0 0);
+  --md-sys-color-inverse-surface: rgb(46 48 53);
+  --md-sys-color-inverse-on-surface: rgb(240 240 247);
+  --md-sys-color-inverse-primary: rgb(165 200 255);
+  --md-sys-color-primary-fixed: rgb(212 227 255);
+  --md-sys-color-on-primary-fixed: rgb(0 28 58);
+  --md-sys-color-primary-fixed-dim: rgb(165 200 255);
+  --md-sys-color-on-primary-fixed-variant: rgb(34 72 118);
+  --md-sys-color-secondary-fixed: rgb(206 229 255);
+  --md-sys-color-on-secondary-fixed: rgb(0 29 50);
+  --md-sys-color-secondary-fixed-dim: rgb(154 203 250);
+  --md-sys-color-on-secondary-fixed-variant: rgb(12 74 114);
+  --md-sys-color-tertiary-fixed: rgb(247 216 255);
+  --md-sys-color-on-tertiary-fixed: rgb(39 20 48);
+  --md-sys-color-tertiary-fixed-dim: rgb(218 189 226);
+  --md-sys-color-on-tertiary-fixed-variant: rgb(85 63 93);
+  --md-sys-color-surface-dim: rgb(217 218 224);
+  --md-sys-color-surface-bright: rgb(249 249 255);
+  --md-sys-color-surface-container-lowest: rgb(255 255 255);
+  --md-sys-color-surface-container-low: rgb(243 243 250);
+  --md-sys-color-surface-container: rgb(237 237 244);
+  --md-sys-color-surface-container-high: rgb(231 232 238);
+  --md-sys-color-surface-container-highest: rgb(225 226 233);
+}
@@ -0,0 +1,107 @@
+:root {
+  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+a {
+  font-weight: 500;
+  color: #646cff;
+  text-decoration: inherit;
+}
+a:hover {
+  color: #535bf2;
+}
+
+body {
+  margin: 0;
+  display: flex;
+  place-items: center;
+  min-width: 320px;
+  min-height: 100vh;
+}
+
+button {
+  border-radius: 8px;
+  border: 1px solid transparent;
+  padding: 0.6em 1.2em;
+  font-size: 1em;
+  font-weight: 500;
+  font-family: inherit;
+  background-color: #1a1a1a;
+  cursor: pointer;
+  transition: border-color 0.25s;
+}
+button:hover {
+  border-color: #646cff;
+}
+button:focus,
+button:focus-visible {
+  outline: 4px auto -webkit-focus-ring-color;
+}
+
+button#query-button {
+  height: 5em;
+  vertical-align: top;
+}
+
+button#play-button {
+  padding: '10px 20px';
+  font-size: '16px';
+  cursor: 'pointer';
+  background-color: '#28a745';
+  color: '#fff';
+  border: 'none';
+  border-radius: '5px';
+};
+
+button#pause-button {
+  background-color: #ffc107;
+}
+
+button#stop-button {
+  background-color: #dc3545;
+}
+
+h1 {
+  font-size: 3.2em;
+  line-height: 1.1;
+}
+
+p#footer {
+  float: none;
+  clear: both;
+  vertical-align: bottom;
+}
+
+table#query-output {
+  float: none;
+  clear: both;
+}
+
+textarea#query-input {
+  height: 5em;
+  width: 50em;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+  a:hover {
+    color: #747bff;
+  }
+  button {
+    background-color: #f9f9f9;
+  }
+}
@@ -0,0 +1,7 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import App from './App';
+
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <App />
+)
@@ -0,0 +1,83 @@
+import { fileURLToPath, URL } from 'node:url';
+import { defineConfig } from 'vite';
+import plugin from '@vitejs/plugin-react';
+import fs from 'fs';
+import path from 'path';
+import child_process from 'child_process';
+import process, { env } from 'process';
+
+const baseFolder =
+  process.env.APPDATA !== undefined && process.env.APPDATA !== ''
+    ? `${process.env.APPDATA}/ASP.NET/https`
+    : `${process.env.HOME}/.aspnet/https`;
+
+const certificateName = "bts.datastreamwebapp.client";
+const certFilePath = path.join(baseFolder, `${certificateName}.pem`);
+const keyFilePath = path.join(baseFolder, `${certificateName}.key`);
+
+if (!fs.existsSync(certFilePath) || !fs.existsSync(keyFilePath)) {
+  if (0 !== child_process.spawnSync('dotnet', [
+    'dev-certs',
+    'https',
+    '--export-path',
+    certFilePath,
+    '--format',
+    'Pem',
+    '--no-password',
+  ], { stdio: 'inherit', }).status) {
+    throw new Error("Could not create certificate.");
+  }
+}
+
+export default defineConfig(({ $$command, mode, $$isSsrBuild, $$isPreview }) => {
+  const target = env.ASPNETCORE_HTTPS_PORT
+    ? `https://localhost:${env.ASPNETCORE_HTTPS_PORT}`
+    : env.ASPNETCORE_URLS
+      ? env.ASPNETCORE_URLS.split(';')[0]
+      : 'https://localhost:8443';
+  return {
+    plugins: [plugin()],
+    resolve: {
+      alias: {
+        '@': fileURLToPath(new URL('./src', import.meta.url))
+      }
+    },
+    build: {
+      minify: false,
+      sourcemap: true,
+      outDir: `../../../build/Bts.DataStreamWebApp.Client/${mode}/dist`
+    },
+    server: {
+      proxy: {
+        '^/api': {
+          target,
+          secure: false,
+          configure: (proxy) => {
+            proxy.on('error', (err) => {
+              console.log('proxy error', err);
+            });
+            proxy.on('proxyReq', (proxyReq, req) => {
+              console.log(`Forwarding ${proxyReq.method} ${proxyReq.protocol}//${proxyReq.host}${proxyReq.path} to ${req.socket.remoteAddress}${req.url}`);
+            });
+            proxy.on('proxyRes', (proxyRes, req, res) => {
+              console.log(`Forwarding response ${req.socket.localAddress} to ${res.socket.remoteAddress}. Status=${proxyRes.statusCode}`);
+            });
+          },
+        },
+        '^/ws': {
+          target,
+          secure: false
+        },
+        '^/browse': {
+          target,
+          secure: false
+        }
+      },
+      port: 5173,
+      https: {
+        key: fs.readFileSync(keyFilePath),
+        cert: fs.readFileSync(certFilePath),
+      }
+    }
+  };
+});
@@ -0,0 +1,40 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <InvariantGlobalization>true</InvariantGlobalization>
+    <SpaRoot>..\Bts.DataStreamWebApp.Client</SpaRoot>
+    <SpaProxyLaunchCommand>npm run dev</SpaProxyLaunchCommand>
+    <SpaProxyServerUrl>https://localhost:5173</SpaProxyServerUrl>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="CommandLineParser" Version="2.9.1" />
+    <PackageReference Include="Microsoft.AspNetCore.SpaProxy" Version="7.0.20" />
+    <PackageReference Include="Microsoft.AspNetCore.SpaServices.Extensions" Version="7.0.20" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Bts.DataStreamWebApp.Client\Bts.DataStreamWebApp.Client.esproj">
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+    <ProjectReference Include="..\DataStream\DataStream.csproj" />
+    <ProjectReference Include="..\SharedStreams\SharedStreams.csproj" />
+    <ProjectReference Include="..\..\client\spark_api\spark_api.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+    <ProjectReference Include="..\..\client\spark_websocket\spark_websocket.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ConfigurationProfile Include="appsettings.Development.json" />
+    <ConfigurationProfile Include="appsettings.Production.json" />
+    <ConfigurationProfile Include="appsettings.ProductionAws.json" />
+    <ConfigurationProfile Include="appsettings.Staging.json" />
+    <ConfigurationProfile Include="appsettings.json" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,5 @@
+namespace Bts.DataStreamWebApp.Server;
+
+public class CannedQueriesConfig {
+   public List<CannedQuery>? Items { get; set; }
+}
@@ -0,0 +1,6 @@
+namespace Bts.DataStreamWebApp.Server;
+
+public class CannedQuery {
+   public string? Name { get; set; }
+   public List<string>? Query { get; set; }
+}
@@ -0,0 +1,18 @@
+namespace Bts.DataStreamWebApp.Server;
+
+using Microsoft.AspNetCore.Mvc;
+
+[ApiController]
+[Route("api/[controller]")]
+public class CannedQueriesController : ControllerBase {
+   readonly IConfiguration config;
+
+   public CannedQueriesController(IConfiguration config) =>
+      this.config = config;
+
+   [HttpGet(Name = "GetCannedQueries")]
+   public IEnumerable<CannedQuery>? Get() {
+      var cannedQueries = config.GetSection("CannedQueries").Get<List<CannedQuery>>()?.ToArray() ?? Array.Empty<CannedQuery>();
+      return cannedQueries;
+   }
+}
@@ -0,0 +1,22 @@
+// using Bts.DataStreamWebApp.Server;
+
+// using Microsoft.AspNetCore.Mvc;
+
+// [ApiController]
+// [Route("api/[controller]")]
+// public class ConfigController : ControllerBase {
+//    private readonly IConfiguration _configuration;
+
+//    public ConfigController(IConfiguration configuration) {
+//       _configuration = configuration;
+//    }
+
+//    [HttpGet("websocket")]
+//    public ActionResult<DataStreamWebSocketConfig> GetWebSocketConfig() {
+//       var endpoint = $"{_configuration["Kestrel:Endpoints:Http:Url"]}/ws";
+//       var webSocketConfig = new DataStreamWebSocketConfig {
+//          Endpoint = endpoint // or Https based on your setup
+//       };
+//       return Ok(webSocketConfig);
+//    }
+// }
@@ -0,0 +1,37 @@
+namespace Bts.DataStreamWebApp.Server.Controllers;
+
+using Bts.DataStream;
+
+using Microsoft.AspNetCore.Mvc;
+
+[Route("/ws")]
+public class DataStreamSubscriptionController : ControllerBase {
+   readonly ILogger logger;
+   readonly IDataStreamFactory streamFactory;
+
+   public DataStreamSubscriptionController(ILogger<DataStreamSubscriptionController> logger, IEnumerable<IDataStreamFactory> streamFactories) {
+      this.logger = logger;
+      logger.LogInformation("Creating {ControllerType}", GetType().Name);
+      var streamFactoryList = streamFactories.ToList();
+      streamFactory = streamFactoryList.Count == 1
+         ? streamFactoryList[0]
+         : new CompositeDataStreamFactory(streamFactoryList);
+   }
+
+   [Route("/ws")]
+   public async Task Get(CancellationToken cancellationToken) {
+      if (!HttpContext.WebSockets.IsWebSocketRequest) {
+         logger.LogError("Expected websocket request on path '{}'", HttpContext.Request.Path);
+         return;
+      }
+      logger.LogInformation("Establishing websocket connection...");
+      try {
+         using var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
+         logger.LogInformation("Websocket connection established.");
+         using var server = new DataStreamWebSocketServer(webSocket, streamFactory, logger);
+         await server.Run(cancellationToken);
+      } catch (Exception ex) {
+         logger.LogError("DataStreamSubscriptionController.Run threw exception: {Exception}", ex);
+      }
+   }
+}
@@ -0,0 +1,133 @@
+namespace Bts.DataStreamWebApp.Server.Controllers;
+
+using BCG;
+
+using bts.websocket_core.json_rpc;
+
+using Bts.DataStreamCore;
+using Bts.DataStreamWebApp.Server.Messages;
+
+using System;
+using System.Net.WebSockets;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+class DataStreamSubscription : IDisposable, IHostedService {
+   public readonly ViewStream ViewStream;
+   public DataPacket? LastFired;
+
+   readonly ILogger logger;
+   readonly WebSocket webSocket;
+
+   public DataStreamSubscription(string id, JsonRpcId requestId, ViewStream viewStream, WebSocket webSocket, ILogger logger) {
+      ViewStream = viewStream;
+      RequestId = requestId;
+      Id = id;
+      this.webSocket = webSocket;
+      this.logger = logger;
+   }
+
+   public string Id { get; }
+   public JsonRpcId RequestId { get; }
+   public SubscriptionStatus Status { get; private set; }
+
+   public void Start() {
+      if (Status == SubscriptionStatus.Subscribed) {
+         logger.LogWarning("Ignoring redundant call to 'Start'. Id = {Id} Status = {Status}", Id, Status);
+         return;
+      }
+      logger.LogInformation("Subscribing to ViewStream. SubscriptionId = {SubscriptionId}", Id);
+      Status = SubscriptionStatus.Subscribed;
+      ViewStream.onChange += onChange;
+   }
+
+   public Task StartAsync(CancellationToken cancellationToken) {
+      cancellationToken.ThrowIfCancellationRequested();
+      Start();
+      return Task.CompletedTask;
+   }
+
+   public Task Clear() {
+      if (LastFired is null) {
+         return Task.CompletedTask;
+      }
+      logger.LogInformation("Clearing subscription (firing DataPacket to delete all rows). Id = {Id} Status = {Status}", Id, Status);
+      return sendDataPacket("clear", new(new BlueTable(LastFired.schema), new BlueTable(LastFired.schema), LastFired.newRows));
+   }
+
+   public void Stop() {
+      if (Status == SubscriptionStatus.Unsubscribed) {
+         logger.LogWarning("Ignoring redundant call to 'Stop'. Id = {Id} Status = {Status}", Id, Status);
+         return;
+      }
+      logger.LogInformation("Unsubscribing from ViewStream. SubscriptionId = {SubscriptionId}", Id);
+      Status = SubscriptionStatus.Unsubscribed;
+      ViewStream.onChange -= onChange;
+   }
+
+   public Task StopAsync(CancellationToken cancellationToken) {
+      cancellationToken.ThrowIfCancellationRequested();
+      Stop();
+      return Task.CompletedTask;
+   }
+
+   public void Dispose() =>
+      Stop();
+
+   async void onChange(object newValue) {
+      if (newValue is not DataPacket dp) {
+         logger.LogError("Expected DataPacket in stream callback (actually received {}).", newValue?.GetType());
+         return;
+      }
+      if (webSocket.State != WebSocketState.Open) {
+         logger.LogError(
+            "Unsubscribing from stream early because WebSocket state = {WebSocketState}", webSocket.State);
+         Dispose();
+         return;
+      }
+      await sendDataPacket("subscribe", dp);
+   }
+
+   async Task sendDataPacket(string method, DataPacket dp) {
+      var serializerOpts = new JsonSerializerOptions {
+         NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals
+      };
+      serializerOpts.Converters.Add(new DataPacketJsonConverter() {
+         IncludeCurrent = true,
+         UseObjectRows = true,
+      });
+      var res = JsonRpcRequest.CreateNotification(method, new DataStreamSubscriptionUpdate() {
+         SubscriptionId = Id,
+         Table = dp
+      });
+      var str = serialize(res, serializerOpts);
+      if (str is null) {
+         logger.LogError("Unsubscribing from stream early because we failed to serialize an outgoing DataPacket");
+         Dispose();
+         return;
+      }
+      logger.LogInformation(
+         "Sending DataPacket. NumRows = {NumRows} NumCols = {NumCols} MessageLength = {MessageLength}",
+         dp.newRows.Count,
+         dp.schema.columnNames.Length,
+         str.Length);
+      var bytes = Encoding.UTF8.GetBytes(str);
+      try {
+         await webSocket.SendAsync(bytes, WebSocketMessageType.Text, true, CancellationToken.None);
+         LastFired = dp;
+      } catch (WebSocketException ex) {
+         logger.LogError($"sendDataPacket failed on webSocket.SendAsync: {ex}");
+      }
+   }
+
+   string? serialize<T>(T message, JsonSerializerOptions? opts) {
+      opts ??= JsonSerializerOptions.Default;
+      try {
+         return JsonSerializer.Serialize(message, opts);
+      } catch (Exception ex) {
+         logger.LogError("Failed to serialize message of type {MessageType}: {Exception}", typeof(T), ex);
+      }
+      return null;
+   }
+}
@@ -0,0 +1,13 @@
+namespace Bts.DataStreamWebApp.Server;
+
+using BCG;
+
+using System.Text.Json.Serialization;
+
+public class DataStreamSubscriptionUpdate {
+   [JsonPropertyName("subscription_id")]
+   public string? SubscriptionId { get; set; }
+
+   [JsonPropertyName("table")]
+   public DataPacket? Table { get; set; }
+}
@@ -0,0 +1,89 @@
+namespace Bts.DataStreamWebApp.Server;
+
+using Bts.PubSub;
+
+using CommandLine;
+
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+class DataStreamWebAppServerConfig {
+   /// <summary>
+   /// The login user for sparkd
+   /// </summary>
+   [JsonPropertyName("user")]
+   [Option("user", HelpText = "The sparkd login user")]
+   public string? User { get; set; }
+
+   /// <summary>
+   /// The login password for sparkd
+   /// </summary>
+   [JsonPropertyName("password")]
+   [Option("pass", HelpText = "The sparkd login password")]
+   public string? Password { get; set; }
+
+   /// <summary>
+   /// The config server url for sparkd
+   /// </summary>
+   [JsonPropertyName("sparkd")]
+   [Option("sparkd", HelpText = "The sparkd config server")]
+   public string? Sparkd { get; set; }
+
+   [JsonPropertyName("pubsub")]
+   public PubSubConfig? PubSub { get; set; }
+
+   [Option("content-root-path")]
+   [JsonPropertyName("content_root_path")]
+   public string? ContentRootPath { get; set; }
+
+   [Option("web-root-path")]
+   [JsonPropertyName("web_root_path")]
+   public string? WebRootPath { get; set; }
+
+   [Option("environment-name")]
+   [JsonPropertyName("environment_name")]
+   public string? EnvironmentName { get; set; }
+
+   public DirectoryBrowserOptions? DirectoryBrowser { get; set; }
+
+   [Option(
+      "config",
+      MetaValue = "PATH",
+      HelpText = "Path to json file representing these options (DataStreamPublisherConfig)")]
+   [JsonIgnore]
+   public string? ConfigFile { get; set; }
+
+   public static DataStreamWebAppServerConfig Default() =>
+      new() {
+         User = "bts",
+         PubSub = PubSubConfig.Default(),
+      };
+
+   public void MergeWith(DataStreamWebAppServerConfig other) {
+      User ??= other.User;
+      Password ??= other.Password;
+      PubSub ??= other.PubSub;
+      Sparkd ??= other.Sparkd;
+      ContentRootPath ??= other.ContentRootPath;
+      WebRootPath ??= other.WebRootPath;
+      ConfigFile ??= other.ConfigFile;
+   }
+
+   /// <summary>
+   /// Merges options with those defined in `ConfigFile` (does not overwrite
+   /// non-null existing values).
+   /// </summary>
+   /// <exception cref="InvalidOperationException">
+   /// JsonSerializer.Deserialize returns null
+   /// </exception>
+   public void MergeWithConfigFile() {
+      if (ConfigFile is null) {
+         return;
+      }
+      var cfgString = File.ReadAllText(ConfigFile);
+      var parsedCfg = JsonSerializer.Deserialize<DataStreamWebAppServerConfig>(cfgString) ??
+         throw new InvalidOperationException($"Failed to parse json from {ConfigFile}");
+      MergeWith(parsedCfg);
+      ConfigFile = null;
+   }
+}
@@ -0,0 +1,5 @@
+namespace Bts.DataStreamWebApp.Server;
+
+public class DataStreamWebSocketConfig {
+   public string? Endpoint { get; set; }
+}
@@ -0,0 +1,151 @@
+namespace Bts.DataStreamWebApp.Server.Controllers;
+
+using bts.websocket_core.json_rpc;
+
+using Bts.DataStream;
+using Bts.DataStreamWebApp.Server.Messages;
+
+using System.Net.WebSockets;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Nodes;
+
+public class DataStreamWebSocketServer : IDisposable, IAsyncDisposable {
+   readonly ILogger logger;
+   readonly WebSocket webSocket;
+   readonly Dictionary<string, DataStreamSubscription> subscriptions = new();
+   readonly IDataStreamFactory streamFactory;
+
+   public DataStreamWebSocketServer(WebSocket webSocket, IDataStreamFactory streamFactory, ILogger logger) {
+      this.webSocket = webSocket;
+      this.streamFactory = streamFactory;
+      this.logger = logger;
+   }
+
+   public async Task<int> Run(CancellationToken cancellationToken) {
+      logger.LogInformation("DataStreamWebSocketServer running");
+      await foreach (var req in JsonRpcRequestAsyncEnumerable.Create(webSocket, logger, cancellationToken)) {
+         await (req.Method switch {
+            "subscribe" => onSubscribe(req, cancellationToken),
+            "unsubscribe" => onUnsubscribe(req.Deserialize<UnsubscribeRequest>(), cancellationToken),
+            _ => Task.CompletedTask,
+         });
+      }
+      logger.LogInformation("DataStreamWebSocketServer stopped");
+      return 0;
+   }
+
+   /// <summary>
+   /// Disposes internal subscriptions. To additionally notify the client of the subscription status
+   /// change(s), use <see cref="DisposeAsync"/>.
+   /// </summary>
+   public void Dispose() {
+      GC.SuppressFinalize(this);
+      disposeSubscriptions();
+   }
+
+   /// <summary>
+   /// Disposes internal subscriptions (like <see cref="Dispose"/>), then sends 'subscription status change'
+   /// notifications to the client (unlike <see cref="Dispose"/>).
+   /// </summary>
+   public async ValueTask DisposeAsync() {
+      GC.SuppressFinalize(this);
+      var finalSubs = subscriptions.Values.Select(s => (s.RequestId, s.Id)).ToList();
+      disposeSubscriptions();
+      // Send a 'subscription status change' msg to the client for each one.
+      foreach (var (requestId, id) in finalSubs) {
+         await sendSubscriptionStatus(requestId, id, "unsubscribe", SubscriptionStatus.Unsubscribed, CancellationToken.None);
+      }
+   }
+
+   async Task onSubscribe(JsonRpcRequest<JsonNode> req, CancellationToken cancellationToken) {
+      ArgumentNullException.ThrowIfNull(req.Id);
+      ArgumentException.ThrowIfNullOrEmpty(req.Method);
+      if (!SubscribeRequest.Parse(req, out var subReq, out var parseErr, out var errCode)) {
+         logger.LogError("Invalid 'subscribe' request: {Reason}", parseErr);
+         var rpcError = JsonRpcResponse.CreateError<SubscriptionError>(
+            req.Id, new() { Code = (long)errCode, Message = "Failed to parse subscription request", Data = parseErr });
+         await send(rpcError, cancellationToken);
+         return;
+      }
+      var subId = subReq.SubscriptionId ?? throw new InvalidOperationException("SubscriptionId is null (parse false)");
+      disposeSubscription(subId);
+      if (!subReq.ParseQuery(streamFactory, out var vs, out parseErr, out errCode)) {
+         logger.LogError("Invalid 'subscribe' request: {Reason}", parseErr);
+         var rpcError = JsonRpcResponse.CreateError<SubscriptionError>(
+            req.Id, new() { Code = (long)errCode, Message = "Failed to parse subscription request", Data = parseErr });
+         await send(rpcError, cancellationToken);
+         return;
+      }
+      if (subscriptions.TryGetValue(subId, out var oldSub)) {
+         logger.LogInformation("Disposing existing subscription with id {SubscriptionId}", subId);
+         oldSub.Dispose();
+      }
+      var sub = new DataStreamSubscription(subId, req.Id.Value, vs, webSocket, logger);
+      subscriptions[subId] = sub;
+      await sendSubscriptionStatus(req.Id.Value, subId, req.Method, SubscriptionStatus.Subscribed, cancellationToken);
+      vs.ErrorChanged += OnStreamError;
+      await sub.StartAsync(cancellationToken);
+
+      async void OnStreamError(Exception exception) {
+         logger.LogError("Error in ViewStream (disposing subscription): {Exception}", exception);
+         subscriptions.Remove(sub.Id);
+         sub.Dispose();
+         var error = new SubscriptionError() {
+            ErrorMessage = "Error in ViewStream (disposing subscription)"
+         };
+         if (exception is not null) {
+            error.ErrorMessage += ". " + exception.Message;
+            error.StackTrace = exception.StackTrace?.Split("\n")?.ToList();
+         }
+         var rpcError = JsonRpcResponse.CreateError<SubscriptionError>(
+            req.Id, new() { Code = (long)ErrorCode.ViewStreamError, Message = "Error in ViewStream (disposing subscription)", Data = error });
+         await send(rpcError, cancellationToken);
+      }
+   }
+
+   async Task onUnsubscribe(JsonRpcRequest<UnsubscribeRequest> req, CancellationToken cancellationToken) {
+      ArgumentNullException.ThrowIfNull(req.Id);
+      ArgumentException.ThrowIfNullOrEmpty(req.Method);
+      var subId = req.Params?.SubscriptionId ?? string.Empty;
+      if (!disposeSubscription(subId)) {
+         logger.LogInformation("Unable to dispose subscription. Subscription with id {Id} not found.", subId);
+      }
+      await sendSubscriptionStatus(req.Id.Value, subId, "unsubscribe", SubscriptionStatus.Unsubscribed, cancellationToken);
+   }
+
+   bool disposeSubscription(string subId) {
+      if (!subscriptions.TryGetValue(subId, out var sub)) {
+         return false;
+      }
+      logger.LogInformation("Disposing subscription with id {Id}", subId);
+      sub.Dispose();
+      subscriptions.Remove(subId);
+      return true;
+   }
+
+   Task sendSubscriptionStatus(JsonRpcId reqId, string subId, string method, SubscriptionStatus status, CancellationToken cancellationToken) {
+      logger.LogInformation("Sending {Method} ack. SubscriptionId = {SubscriptionId}", method, subId);
+      var response = JsonRpcResponse.Create(reqId, new SubscriptionStatusMessage() {
+         SubscriptionId = subId,
+         Status = status,
+      });
+      return send(response, cancellationToken);
+   }
+
+   Task send<T>(T message, CancellationToken cancellationToken) {
+      if (message is null) {
+         return Task.CompletedTask;
+      }
+      var str = JsonSerializer.Serialize(message);
+      var bytes = Encoding.UTF8.GetBytes(str);
+      logger.LogTrace("Sending data. Length = {Length}", bytes.Length);
+      return webSocket.SendAsync(bytes, WebSocketMessageType.Text, true, cancellationToken);
+   }
+
+   void disposeSubscriptions() {
+      logger.LogInformation("Disposing DataStreamWebSocketServer subscriptions. Count: {Count}", subscriptions.Count);
+      subscriptions.Values.DisposeAll();
+      subscriptions.Clear();
+   }
+}
@@ -0,0 +1,13 @@
+FROM bluetradingsystems/linux_dotnet7
+
+ARG CS_SOURCE_DIR="build/Release/bin/net7.0/linux-x64/publish"
+ARG CPP_SOURCE_DIR="install/data-stream-suite-linux"
+ARG WEB_ROOT="build/Bts.DataStreamWebApp.Client/production/dist"
+ARG CONF_FILE="src/DataStreamSuite/Bts.DataStreamWebApp.Server/spark.conf"
+
+RUN dotnet dev-certs https --trust
+COPY --chown=bts:bts "${CPP_SOURCE_DIR}/lib" "bin"
+COPY --chown=bts:bts "${CS_SOURCE_DIR}" "bin"
+COPY --chown=bts:bts "${WEB_ROOT}" "bin/wwwroot"
+COPY --chown=bts:bts "${CONF_FILE}" ".local/share/bts/Bts.DataStreamWebApp.Server/conf/spark.conf"
+WORKDIR "/home/bts/bin"
@@ -0,0 +1,5 @@
+namespace Bts.DataStreamWebApp.Server;
+
+public class CannedQueriesResponse {
+   public List<CannedQuery>? Items { get; set; }
+}
@@ -0,0 +1,7 @@
+namespace Bts.DataStreamWebApp.Server.Messages;
+
+enum ErrorCode {
+   None = 0,
+   InvalidSubscriptionRequest,
+   ViewStreamError,
+}
@@ -0,0 +1,78 @@
+namespace Bts.DataStreamWebApp.Server.Messages;
+
+using BCG;
+
+using bts.websocket_core.json_rpc;
+
+using Bts.DataStream;
+using Bts.DataStreamExpressions;
+
+using System.Diagnostics.CodeAnalysis;
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using System.Text.Json.Serialization;
+
+public class SubscribeRequest {
+   [JsonPropertyName("query")]
+   public string? Query { get; set; }
+
+   [JsonPropertyName("subscription_id")]
+   public string? SubscriptionId { get; set; }
+
+   internal static bool Parse(JsonRpcRequest<JsonNode> req, [NotNullWhen(true)]out SubscribeRequest? subscription, [NotNullWhen(false)]out SubscriptionError? error, out ErrorCode errorCode) {
+      subscription = null;
+      errorCode = ErrorCode.None;
+      var paramsJsonObj = req.Params?.AsObject();
+      error = null;
+      if (paramsJsonObj is null) {
+         errorCode = ErrorCode.InvalidSubscriptionRequest;
+         error = new() { ErrorMessage = "'params' object not found" };
+         return false;
+      }
+      subscription = paramsJsonObj.Deserialize<SubscribeRequest>();
+      if (subscription is null) {
+         errorCode = ErrorCode.InvalidSubscriptionRequest;
+         error = new() { ErrorMessage = "'params' object invalid" };
+         return false;
+      }
+      return true;
+   }
+
+   internal bool ParseQuery(
+      IDataStreamFactory streamFactory,
+      [NotNullWhen(true)] out ViewStream? stream,
+      [NotNullWhen(false)] out SubscriptionError? error,
+      out ErrorCode errorCode
+   ) {
+      stream = null;
+      errorCode = ErrorCode.None;
+      error = null;
+      if (Query is null) {
+         errorCode = ErrorCode.InvalidSubscriptionRequest;
+         error = new() { ErrorMessage = "'params.query' field not found (expected a string)" };
+         return false;
+      }
+      var exp = DataStreamExpressionsInterpreter.Evaluate(Query);
+      if (exp is null) {
+         errorCode = ErrorCode.InvalidSubscriptionRequest;
+         error = new() { ErrorMessage = "'params.query' expression has invalid syntax" };
+         return false;
+      }
+      Exception? exception = null;
+      try {
+         stream = exp.getView(new Dictionary<string, StatementExpression>(0), streamFactory);
+      } catch (Exception ex) {
+         exception = ex;
+      }
+      if (stream is null) {
+         errorCode = ErrorCode.InvalidSubscriptionRequest;
+         error = new() { ErrorMessage = "Failed to create ViewStream from 'params.query' expression (check for typos in arguments/typenames)" };
+         if (exception is not null) {
+            error.ErrorMessage += ". " + exception.Message;
+            error.StackTrace = exception.StackTrace?.Split("\n")?.ToList();
+         }
+         return false;
+      }
+      return true;
+   }
+}
@@ -0,0 +1,11 @@
+namespace Bts.DataStreamWebApp.Server.Messages;
+
+using System.Text.Json.Serialization;
+
+public class SubscriptionError {
+   [JsonPropertyName("error_message")]
+   public string? ErrorMessage { get; set; }
+
+   [JsonPropertyName("stack_trace")]
+   public List<string>? StackTrace { get; set; }
+}
@@ -0,0 +1,18 @@
+namespace Bts.DataStreamWebApp.Server.Messages;
+
+using System.Text.Json.Serialization;
+
+enum SubscriptionStatus {
+   None,
+   Subscribed,
+   Unsubscribed,
+}
+
+class SubscriptionStatusMessage {
+   [JsonPropertyName("subscription_id")]
+   public string? SubscriptionId { get; set; }
+
+   [JsonPropertyName("status")]
+   [JsonConverter(typeof(JsonStringEnumConverter))]
+   public SubscriptionStatus Status { get; set; } = SubscriptionStatus.None;
+}
@@ -0,0 +1,8 @@
+namespace Bts.DataStreamWebApp.Server.Messages;
+
+using System.Text.Json.Serialization;
+
+public class UnsubscribeRequest {
+   [JsonPropertyName("subscription_id")]
+   public string? SubscriptionId { get; set; }
+}
@@ -0,0 +1,87 @@
+using Bts.DataStreamCore.Services;
+using Bts.PubSub.Services;
+using Bts.SharedStreams.Services;
+
+using Spark.Api.Services;
+using Spark.Core.Services;
+
+using System.Reactive.Linq;
+using System.Reflection;
+
+var builder = WebApplication.CreateBuilder(new WebApplicationOptions {
+   Args = args,
+   ApplicationName = "Bts.DataStreamWebApp.Server",
+});
+ConfigureApp(builder.Configuration, builder.Environment.EnvironmentName);
+ConfigureServices(builder.Services, builder.Configuration);
+
+var app = builder.Build();
+var wsOpts = new WebSocketOptions {
+   KeepAliveInterval = TimeSpan.FromMinutes(2)
+};
+if (app.Environment.IsDevelopment()) {
+   app.UseDirectoryBrowser("/browse");
+   app.UseSwagger();
+   app.UseSwaggerUI();
+}
+app.UseHttpsRedirection();
+app.UseWebSockets(wsOpts);
+app.UseDefaultFiles();
+app.UseStaticFiles();
+app.UseAuthorization();
+app.MapControllers();
+try {
+   Console.Write($"Starting Application");
+   app.Run();
+   Console.Write($"Application exited gracefully.");
+} catch (Exception ex) {
+   Console.Error.Write($"Application crashed: {ex}");
+   return 1;
+}
+return 0;
+
+static void ConfigureApp(ConfigurationManager configBuilder, string environment) {
+   // We prefix appsettings with the exe name because multiple exes will usually be in the build dir
+   // (this way, each exe can still load its own appsettings files from the current directory).
+   var exeName = Assembly.GetCallingAssembly().GetName().Name;
+   AddJsonFile($"{exeName}.appsettings.json");
+   AddJsonFile($"{exeName}.appsettings.{environment}.json");
+
+   var cfg = configBuilder.GetSection("config")?.Value;
+   if (!SetBasePath(cfg)) {
+      AddJsonFile(cfg);
+   }
+
+   bool SetBasePath(string? path) {
+      if (!Directory.Exists(path)) {
+         return false;
+      }
+      configBuilder.SetBasePath(path);
+      return true;
+   }
+
+   bool AddJsonFile(string? path) {
+      if (!File.Exists(path)) {
+         return false;
+      }
+      configBuilder.AddJsonFile(path);
+      return true;
+   }
+}
+
+static void ConfigureServices(IServiceCollection services, IConfiguration config) {
+   services.AddDirectoryBrowser()
+      .AddControllers().Services
+      .AddEndpointsApiExplorer()
+      .AddSwaggerGen();
+   services.AddSpaStaticFiles();
+   services.AddSpark(config.GetSection("Spark"))
+      .AddSparkApi(config.GetSection("SparkApi"))
+      .AddMasterWorker(config.GetSection("MasterWorker"))
+      .AddViewStreamDatabase()
+      .AddPrimitiveDataStreamFactory(config.GetSection("PrimitiveStreams"))
+      .AddOhlcvStreams(config.GetSection("StreamDatabase"))
+      .AddNaturalLanguageStreams(config.GetSection("NaturalLanguageStream"))
+      .AddCompositeDataStreamFactory()
+      .AddPubSubClient(config.GetSection("PubSub"));
+}
@@ -0,0 +1,29 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:8080",
+      "environmentVariables": {
+        "ASPNETCORE_HTTP_PORT": "8080",
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:8080;https://localhost:8443",
+      "environmentVariables": {
+        "ASPNETCORE_HTTP_PORT": "8080",
+        "ASPNETCORE_HTTPS_PORT": "8443",
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
+      }
+    },
+  },
+}
@@ -0,0 +1,52 @@
+{
+  "PubSub": {
+    "Routing": {
+      "PublisherRoutes": [
+        {
+          "Name": "default",
+          "ServerAddress": "bts-cloud://localhost:22019",
+          "TagRegExp": ".*"
+        }
+      ],
+      "SubscriberRoutes": [
+        {
+          "Name": "default",
+          "ServerAddress": "bts-cloud://localhost:22019",
+          "TagRegExp": ".*"
+        }
+      ]
+    }
+  },
+  "CannedQueries": [
+    {
+      "Name": "BBO",
+      "Query": [
+        "bbo"
+      ]
+    },
+    {
+      "Name": "Trades",
+      "Query": [
+        "timesales"
+      ]
+    },
+    {
+      "Name": "Instruments",
+      "Query": [
+        "instruments"
+      ]
+    },
+    {
+      "Name": "Books",
+      "Query": [
+        "books"
+      ]
+    },
+    {
+      "Name": "Benzinga News",
+      "Query": [
+        "benzinga_news"
+      ]
+    }
+  ]
+}
@@ -0,0 +1,45 @@
+{
+  "NaturalLanguagePrompt": {
+    "prompts": [
+      {
+        "category": "Impact of financial events on the market",
+        "description": "Show how trading metrics (e.g., price movement, volume) are affected by events related to finance (rate announcements, earnings reports, etc.).",
+        "prompt": "Show me the price movement and volume of Crude Oil futures during the 5-minute window following the last 5 OPEC meetings",
+        "examples": [
+          {
+            "natural_language": "Show me the price movement and volume of Crude Oil futures during the 5-minute window following the last 5 OPEC meetings",
+            "dsl": [
+              "time_idx=EventTimeIndex.OpecMeetings(which: \"last 5\", duration: \"+5min\")",
+              "contract_idx=ActiveFutureContracts(predicate: \"product==CL\")",
+              "Bars(time_index: time_idx, contract_index: contract_idx, fields: [\"price_movement\", \"volume\"])"
+            ]
+          },
+          {
+            "natural_language": "How do OPEC meetings affect the price of Crude futures? Examine the 10 minutes after each meeting this year.",
+            "dsl": [
+              "time_idx=EventTimeIndex.OpecMeetings(duration: \"+10min\", predicate: \"timestamp.year==2024\")",
+              "contract_idx=ActiveFutureContracts(predicate: \"product==CL\")",
+              "Bars(time_index: time_idx, contract_index: contract_idx, fields: [\"price_movement\", \"volume\"])"
+            ]
+          },
+          {
+            "natural_language": "Show me how the SP 500 price moves after FOMC rate announcements that day",
+            "dsl": [
+              "time_idx=EventTimeIndex.FomcRateAnnouncements(which: \"timestamp.year==2024\", duration: \"+10min\")",
+              "contract_idx=ActiveFutureContracts(predicate: \"product==ES\")",
+              "Bars(time_index: time_idx, contract_index: contract_idx, fields: [\"price_movement\", \"volume\"])"
+            ]
+          },
+          {
+            "natural_language": "Analyze the impact of the FED's interest rate hikes in 2022 on the 10-year Treasury yield, focusing on the 2-week period following each hike.",
+            "dsl": [
+              "time_idx=FedInterestRateAnnouncements(predicate: \"timestamp.year==2022 && change_pct>0\", duration: \"+2 weeks\")",
+              "contract_idx=ActiveFutureContracts(predicate: \"product==ZN\")",
+              "Bars(time_index: time_idx, contract_index: contract_idx)"
+            ]
+          }
+        ]
+      }
+    ]
+  }
+}
				`@@ -1 +0,0 @@`
				`PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins;/workspaces/spark/tools/py`
				`@@ -0,0 +1 @@`
				`VITE_DATASTREAM_WEBSOCKET_URL=wss://localhost:8443/ws`
				`@@ -0,0 +1 @@`
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