protected function serverSocketRequest()
    {
        $base = function_exists('lzf_compress') ? self::REQUEST_SOCKET_LZF : self::REQUEST_SOCKET_NON_LZF;
        $url = sprintf("%s%s/%d", $this->clientApiConfig->getEndpoint(), $base, $this->clientApiConfig->getProjectId());
        $data = array(
            'key' => $this->clientApiConfig->getKey(),
            'secret' => $this->clientApiConfig->getSecret(),
        );

        return $this->postClient->call($url, $data);
    }