django - nginx doesn't proxy websocket

Question

I'm trying to install django_channels. I pass the tutorial, and everything works except of essential - websocket doesn't work when I try it by external browser.

Daphne is working, checked with wscat --connect ws://localhost:8000/ws/chat/room/ so local works.

The only difference between tutorial and my is in asgi.py:

tutorial asgi.py:

import os

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
from django.core.asgi import get_asgi_application
import chat.routing

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")

application = ProtocolTypeRouter({
  "http": get_asgi_application(),
  "websocket": AuthMiddlewareStack(
        URLRouter(
            chat.routing.websocket_urlpatterns
        )
    ),
})

my asgi.py:

import os

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'settings.settings')

import django
django.setup()

from django.core.asgi import get_asgi_application
from channels.routing import ProtocolTypeRouter, URLRouter
import chat.routing
from channels.auth import AuthMiddlewareStack


application = ProtocolTypeRouter({
    "http" : get_asgi_application(),
    "websocket": AuthMiddlewareStack(
        URLRouter(
            chat.routing.websocket_urlpatterns
        )
    ),
})

I have to move from channels.auth import AuthMiddleWareStack lower and have to add import django; django.setup() because of errors - (NO INSTALLED_APPS and no Apps).

I know that nginx got connection because /var/log/asgi.log reacts:

django.template.base.VariableDoesNotExist: Failed lookup for key [name] in <URLResolver <module 'chat.urls' from './chat/urls.py'> (None:None) 'chat/'>
2021-01-27 00:44:20,491 WARNING  Not Found: /ws/chat/room/

nginx/sites-enabled/mysite.conf

#
map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
}
# the upstream component nginx needs to connect to
upstream django-mysite {
    server unix:///home/mysite/mysite.sock; # for a file socket

}
upstream websocket {
    server localhost:8000;
}
# configuration of the server
server {
    # the port your site will be served on
    listen      80;
    # the domain name it will serve for
    server_name mysite.example.com 
    charset     utf-8;

    # max upload size
    client_max_body_size 75M;   # adjust to taste

    # Django media
    location /media/ {
        alias /home/mysite/media/;  # your Django project's media files - amend as required
    }

    location /static/ {
        alias /home/common/; # your Django project's static files - amend as required
    }

    # Finally, send all non-media requests to the Django server.
    location / {
        uwsgi_pass  django-mysite;
        include     uwsgi_params; # the uwsgi_params file you installed
        try_files $uri @daphne;
    }

    location @daphne {
        proxy_pass http://websocket;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Host $server_name;
    }
}

External browser console shows:

WebSocket connection to 'ws://mysite.example.com/ws/chat/room/' failed: Error during WebSocket handshake: Unexpected response code: 404

question from:https://stackoverflow.com/questions/65911451/nginx-doesnt-proxy-websocket

Answer 1

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