private function _setHeaders($method, $url, $body = NULL) { if ($method != HttpRequest::GET) { $cType = 'application/json'; } else { $cType = NULL; } $macToken = $this->_mac->MACToken($method, $url, $cType, $body); $ua = Utils::getUserAgent(Config::SDK_USER_AGENT, Config::SDK_VERSION); return array('Content-Type' => $cType, 'User-Agent' => $ua, 'Authorization' => $macToken); }