Function workflow_websocket::server::handshake::greeting

pub async fn greeting<'ws>(
    timeout_duration: Duration,
    _sender: &'ws mut WebSocketSender,
    receiver: &'ws mut WebSocketReceiver,
    handler: HandshakeFn
) -> Result<()>

Simple greeting handshake where supplied closure receives the first message from the client and should return Ok(()) to proceed or Error to abort the connection.