asgi.py

"""
ASGI config for Conreq project.

It exposes the ASGI callable as a module-level variable named ``application``.

For more information on this file, see
https://docs.djangoproject.com/en/3.0/howto/deployment/asgi/
"""

import os

from django.conf.urls import url

from django.core.asgi import get_asgi_application

# Fetch Django ASGI application early to ensure AppRegistry is populated
# before importing consumers and AuthMiddlewareStack that may import ORM
# models.
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "conreq.settings")
django_asgi_app = get_asgi_application()

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
from channels.security.websocket import AllowedHostsOriginValidator

from conreq.core.server_websockets import CommandConsumer


application = ProtocolTypeRouter(
    {
        # Cannot use asgi app due to concurrency problems, currently using wsgi to serve http
        # See https://github.com/django/channels/issues/1587
        "http": django_asgi_app,
        "websocket": AllowedHostsOriginValidator(
            AuthMiddlewareStack(URLRouter([url("", CommandConsumer().as_asgi())]))
        ),
    }
)