My Flask-SocketIo backend is throwing 400 error when invoked from CAAS platform through websockets

[senthilkumar-quant]

Client is a CAAS platform (Jambonz). Websocket connection is initiated from client to my Flask-SocketIO server. It works fine for http calls and the issue is only for websocket calls. I have defined implementation for socket events like connect, message etc... but none of them has been invoked and it always throwing 400 error back whenever websockets calls comes from my CAAS platform.

Could you please advice how do i find the rootcause of the issue.

[miguelgrinberg]

This is a Socket.IO server. You have to use a Socket.IO client. A websocket client can only connect to a websocket server.

[miguelgrinberg]

Try Flask-Sock.

[senthilkumar-quant]

ok Thank you, let me check

[senthilkumar-quant]

With Flask-Sock, i could see connections from my CAAS platform has been established. But may i know how could i accept the connection and kept it open for further conversations? My ws.receive() call is waiting indefenitely.

[miguelgrinberg]

I recommend you look at the examples in the Flask-Sock repository. The receive() call blocks until the client sends something. The connection remains open.

[senthilkumar-quant]

ok, thanks. let me check