Swoole\Request::isWebSocket PHP Method

    function isWebSocket()
    {
        return isset($this->header['Upgrade']) && strtolower($this->header['Upgrade']) == 'websocket';
    }

 /**
  * Request come
  * @param Swoole\Request $request
  * @return Swoole\Response
  */
 function onRequest(Swoole\Request $request)
 {
     return $request->isWebSocket() ? $this->onWebSocketRequest($request) : $this->onHttpRequest($request);
 }