John Colvin
f9db93e41a
The binance depth stream must be bootstrapped with a depth snapshot, which is retrieved via an HTTP GET request
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
#include "HTTPClient.h"
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#include "HTTPRequest.h"
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#include "HTTPResponse.h"
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#include "lib/io/URL.h"
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#include "lib/logging/logging.h"
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#include <curl/curl.h>
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#include <fmt/format.h>
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namespace bts::io::http {
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static size_t write_data_(
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void *ptr, size_t size, size_t nmemb, std::string *data) {
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data->append((char *)ptr, size * nmemb);
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return size * nmemb;
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}
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HTTPResponse HTTPClient::get(const HTTPRequest &request) {
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auto *curl = curl_easy_init();
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auto url_str = request.url().to_string();
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// LOG(md, bts::Info, "do GET: {}", url_str);
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curl_easy_setopt(curl, CURLOPT_URL, url_str.c_str());
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struct curl_slist *request_headers = NULL;
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for (const auto &[k, v] : request.headers()) {
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request_headers = curl_slist_append(
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request_headers, fmt::format("{}: {}", k, v).c_str());
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}
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std::string response_string;
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std::string header_string;
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std::string response_header_string;
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data_);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response_string);
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curl_easy_setopt(curl, CURLOPT_HEADERDATA, &header_string);
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char *url;
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long response_code;
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double elapsed;
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curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
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curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME, &elapsed);
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curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
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// curl_easy_getinfo(curl, CURLINFO_HEADER_OUT, &response_header_string);
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curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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curl = NULL;
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HTTPResponse response;
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response.headers() = HTTPHeaders(response_header_string);
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response.body() = std::move(response_string);
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response.code() = response_code;
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// LOG(md, bts::Info, "do GET: {}. Received response:\n{}", url_str, response);
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return response;
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}
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} // namespace bts::io::http
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