Django Channels Instructions/Support is Outdated

[singlerider]

• GraphQL AioWS version: 0.3.1
• Python version: 3.9.0
• Operating System: Ubuntu/Alpine
• Django version: 3.1.2
• Django Channels version: 2.4.0
• ASGIRef version: 3.2.10

Description

The Django Channels Routing example is outdated:

ImportError: cannot import name 'route_class' from 'channels.routing' (/home/MYUSERNAME/.pyenv/versions/3.9.0/envs/ENVNAME/src/channels/channels/routing.py)

What I Did

route_class seems to be from 1.1.8x, which is from 2017. It's too old of a package for me to revert to. There are nested dependencies in Django and Channels. There should at least be an alternative in the instructions on how to achieve the same result in Channels 2.4.0+.

[isaacbeatbit]

I have the same problem. You have already been able to integrate subscriptions in your project or not yet?

[SmileyChris]

I'm successfully using channels with my branched code in #18
Please give that a go and see if it's working for you. More testing and verification of it working well will give me the confidence to merge it ;)

[ygbourhis]

I have an already existing graphql API with:

Python 3.6.8
Django==2.2.6
channels==3.0.2
graphql-ws==0.3.1

And simply nothing works when following the curent documentation.

In the graphql interface with:

subscription {
  count_seconds(up_to: 5)
}

I get :

{
  "errors": [
    {
      "message": "Subscriptions are not allowed. You will need to either use the subscribe function or pass allow_subscriptions=True"
    }
  ],
  "data": null
}

If I update to:

Django==3.0.5
channels==3.0.2
graphql-ws==0.3.1

I then get this traceback instead:

2020-12-17 16:45:51,869 WebSocket HANDSHAKING /graphql [127.0.0.1:45992]
Exception inside application: No application configured for scope type 'websocket'
Traceback (most recent call last):
  File "/home/yves/.virtualenvs/mvp_dashboard/lib/python3.6/site-packages/channels/staticfiles.py", line 44, in __call__
    return await self.application(scope, receive, send)
  File "/home/yves/.virtualenvs/mvp_dashboard/lib/python3.6/site-packages/channels/routing.py", line 74, in __call__
    "No application configured for scope type %r" % scope["type"]
ValueError: No application configured for scope type 'websocket'
2020-12-17 16:45:51,925 WebSocket DISCONNECT /graphql [127.0.0.1:45992]

And google is of no help at all.

Is graphql-ws still active and supported?

[ygbourhis]

If I follow the doc closely, from graphql_ws.django_channels import GraphQLSubscriptionConsumer fails:

  File "/home/yves/.virtualenvs/mvp_dashboard/lib/python3.6/site-packages/graphql_ws/django_channels.py", line 6, in <module>
    from channels.generic.websockets import JsonWebsocketConsumer
ModuleNotFoundError: No module named 'channels.generic.websockets'

What is the latest channels version supported?

[SmileyChris]

Channels v2 now supported on master