AuthMiddlewareStack does not work with AsyncHttpConsumers in Channels 3

Hello,

I upgrade Django channels to ver. 3.0.0 and discovered that few features stopped working for me. This is happening in the manage.py runserver command. Haven’t tried in staging/production yet.

In Django channels ver. 2.4.0, I had the routing.py configuration file set up like this:

from django.urls import re_path

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
from channels.http import AsgiHandler

from apps.logs.ws import consumers as logs_consumers


application = ProtocolTypeRouter({
    "http": AuthMiddlewareStack(
        URLRouter([
            re_path(r"^admin/logs/live/$", logs_consumers.LogsSSEConsumer),
            re_path(r"", AsgiHandler)
        ])
    )
})

The LogsSSEConsumer consumer class is inheriting from AsyncHttpConsumer.

Everything was working on ver. 2.4 and I could access to self.scope[“user”] in the consumers handle method.

Now upgrading to channels ver. 3 I updated asgi.py file like this:

import os

from django.urls import re_path
from django.core.asgi import get_asgi_application

from channels.routing import ProtocolTypeRouter, URLRouter
from channels.auth import AuthMiddlewareStack

from apps.logs.ws import consumers as logs_consumers


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

application = ProtocolTypeRouter({
    "http": AuthMiddlewareStack(
        URLRouter([
            re_path(r"^admin/logs/live/$", logs_consumers.LogsSSEConsumer.as_asgi()),
            re_path(r"", get_asgi_application()),
        ])
    ),
})

Everything is broken now, a lot of 500 errors showing up in the browser and nothing is working. In the terminal, there are no errors.

If I remove AuthMiddlewareStack wrapper, then everything starts working, except LogsSSEConsumer consumer, because i cannot access self.scope[“user”] anymore.

If I remove self.scope[“user”] lines from the consumers handler method, then everything is working again.

I don’t know, am I setting up those routes wrongly or how can I set up now AsyncHttpConsumer consumers so I can get access to self.scope[“user”].

Same question is, how can i setup AllowedHostsOriginValidator wrapper with AsyncHttpConsumer consumers?

OS: Docker - python:3.8.6-slim Dependencies: Django==3.1.2 channels==3.0.0 channels_redis==3.1.0 django-redis==4.12.1 redis==3.5.3 …

[carltongibson]

@gghildyal Super. Good to hear! Thanks for the confirmation.

3.0.1 will be as soon as I can get the moment.

[KStenK]

I am able to access self.scope["user"] with the following routing:

application = ProtocolTypeRouter(
    {
        "websocket": AuthMiddlewareStack(
            URLRouter(
                [
                    re_path(r"^mywebsocketurl/$", MyConsumer.as_asgi()),
                ]
            )
        ),
        "http": get_asgi_application(),
    }
)

Python 3.9.0

Dependencies: Django==3.1.2 channels==3.0.0 channels-redis==3.2.0 aioredis==1.3.1 hiredis==1.1.0

Not installed: django-redis==4.12.1 redis==3.5.3

Edited: works with Python 3.8.6 too.

Hei @ipaleka,

I am using AsyncHttpConsumer consumer, which I understand has to be under “http” key in the ProtocolTypeRouter.

Tried to put my LogsSSEConsumer under the “websocket” key, but then that route is not found.