boost:asio:read

int ServerRequest::Send()
{
    try
    {
        boost::asio::io_service io_service;

        // Get a list of endpoints corresponding to the server name.
        tcp::resolver resolver(io_service);
        tcp::resolver::query query(m_server_ip, m_server_port); // temp
        tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);

        // Try each endpoint until we successfully establish a connection.
        tcp::socket socket(io_service);
        boost::asio::connect(socket, endpoint_iterator);
        socket.set_option(tcp::no_delay(true));

        // Form the request. We specify the "Connection: close" header so that the
        // server will close the socket after transmitting the response. This will
        // allow us to treat all data up until the EOF as the content.
        std::string json_body = GetBody();
        WriteLog("Sending server request with data:" + json_body);
        boost::asio::streambuf request;
        std::ostream request_stream(&request);
        request_stream << "POST " << "http://" << m_server_ip << ":" << m_server_port << "/" << m_server_path << " HTTP/1.1\r\n";
        request_stream << "Host: " << m_server_ip << ":" << m_server_port << "\r\n";
        request_stream << "Accept: */*\r\n";
        request_stream << "Content-Type: application/json\r\n";
        request_stream << "Content-Length: " << json_body.size() << "\r\n\r\n";
        request_stream << json_body;

        // Send the request.
        boost::asio::write(socket, request);

        // Read the response status line. The response streambuf will automatically
        // grow to accommodate the entire line. The growth may be limited by passing
        // a maximum size to the streambuf constructor.
        boost::asio::streambuf response;
        boost::asio::read_until(socket, response, "\r\n");

        // Check that response is OK.
        std::istream response_stream(&response);
        std::string http_version;
        response_stream >> http_version;
        unsigned int status_code;
        response_stream >> status_code;
        std::string status_message;
        std::getline(response_stream, status_message);
        if (!response_stream || http_version.substr(0, 5) != "HTTP/")
        {
            WriteLog("Invalid response");
            return 1;
        }
        if (status_code != 200)
        {
            WriteLog("Response returned with status code " + status_code);
            return 1;
        }

        // Read the response headers, which are terminated by a blank line.
        boost::asio::read_until(socket, response, "\r\n\r\n");

        // Process the response headers.
        std::string header;
        while (std::getline(response_stream, header) && header != "\r");

        // Read until EOF, writing data to output as we go.
        std::stringstream response_xml_stream;
        boost::system::error_code error;
        while (boost::asio::read(socket, response,
            boost::asio::transfer_at_least(1), error))
        response_xml_stream << &response;
        if (error != boost::asio::error::eof)
            throw boost::system::system_error(error);

        m_response_data = ParseResponse(response_xml_stream);
    }
    catch (std::exception& e)
    {
        WriteLog("Exception:");
        WriteLog(e.what());
        return 1;
  }

  return 0;
}