Django with Channels 2.1.1 Error During WebSocket handshake 404

[Robert Fox]

I am working on a project using Django and Channels 2.1.1. Everything is working splendidly on my home PC but when I deploy to AWS I get the error: 'WebSocket connection to 'ws://IP/ws/lobby/' failed: Error during WebSocket handshake: Unexpected response code: 404 ' which originates from the line in my HTML where I establish the chat socket :

var chatSocket = new WebSocket(

'ws://' + window.location.host + '/ws/' + roomName + '/'

);

I am using nginx and gunicorn to run my Django application on the host machine.

When I went to the Channels 2 tutorial it has a section for testing communication between the channels layer and Redis using the

Django Shell which I tested and works.

My full code can be seen at https://github.com/Rob-Fox/Chat2

Thank you

[Andrew Godwin]

You cannot use gunicorn to run WebSockets or other async code - you need an ASGI server, like Daphne or uvicorn. Switch to one of those and it should start working.

Andrew

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[Robert Fox]

Thank you Andrew, I have now configured Nginx to route /ws/ to port 9000 where Daphne is configured. This has fixed my 404 handshake error and now I have a handshake error 500. Any thoughts?

[Robert Fox]

I managed to get it working, turns out I forgot to install and configure Redis. I now have a working web app with channels.