Method handleRequest

src/Server/APIRequestHandler.cpp:146–198

}

void APIRequestHandler::handleRequest(HTTPServerRequest & request, HTTPServerResponse & response)
{
    setThreadName("APIHandler");
    ThreadStatus thread_status;

    bool with_stacktrace = false;

    try
    {
        const auto & uri = request.getURI();
        LOG_TRACE(log, "Request URI: {}", request.getURI());

        response.setContentType("application/json; charset=utf-8");
        response.set("X-ClickHouse-Server-Display-Name", server_display_name);

        /// For keep-alive to work.
        if (request.getVersion() == Poco::Net::HTTPServerRequest::HTTP_1_1)
            response.setChunkedTransferEncoding(true);

        HTMLForm params(getContext()->getSettingsRef(), request);
        with_stacktrace = params.getParsed<bool>("stacktrace", false);

        if (startsWith(uri, "/api/resource_report"))
        {
            onResourceReportAction(request, params, response);
        }
        else
        {
            throw Exception("No such API", ErrorCodes::BAD_ARGUMENTS);
        }

        LOG_DEBUG(log, "Done processing API request");
    }
    catch (...)
    {
        tryLogCurrentException(log);

        /** If exception is received from remote server, then stack trace is embedded in message.
          * If exception is thrown on local server, then stack trace is in separate field.
          */
        std::string exception_message = getCurrentExceptionMessage(with_stacktrace, true);
        int exception_code = getCurrentExceptionCode();

        try
        {
            trySendExceptionToClient(exception_message, exception_code, request, response);
        }
        catch (...)
        {
            tryLogCurrentException(log, "Cannot send exception to client");
        }
    }
}

void APIRequestHandler::sendResult(const Result & res, HTTPServerResponse & response)
{