This is a really simple example on how to use websockets in OB2.
BLOCK:WsConnect url = "wss://echo.websocket.org" ENDBLOCK BLOCK:WsSend message = "hello" ENDBLOCK BLOCK:Delay milliseconds = 1000 ENDBLOCK BLOCK:WsRead => VAR @wsReadOutput ENDBLOCK BLOCK:WsDisconnect ENDBLOCK
Note that this is just for testing. In most real-world scenarios you will need to first send an HTTP request to the HTTP webserver and then upgrade your connection to websocket.
You can read more about this here Protocol upgrade mechanism - HTTP | MDN