Askedio\LaravelRatchet\PusherServer::onOpen PHP Метод

When a new connection is opened it will be passed to this method.

public onOpen ( Ratchet\ConnectionInterface $conn )
$conn	Ratchet\ConnectionInterface	The socket/connection that just connected to your application

    public function onOpen(ConnectionInterface $conn)
    {
        //
    }

PusherServer