Django daphne asgi: Django can only handle ASGI/HTTP connections, not websocket - django

Question

This is really frustrating, I did set everything up according to the documentation, but daphne keeps throwing an error when I try to run it independently, it does work correctly when I use python manage.py run server. this is very frustrating and I can't seem to find similar error anywhere else
2020-01-25 09:57:17,627 INFO Starting server at tcp:port=8000:interface=127.0.0.1
2020-01-25 09:57:17,628 INFO HTTP/2 support not enabled (install the http2 and tls Twisted extras)
2020-01-25 09:57:17,628 INFO Configuring endpoint tcp:port=8000:interface=127.0.0.1
2020-01-25 09:57:17,629 INFO Listening on TCP address 127.0.0.1:8000
127.0.0.1:44516 - - [25/Jan/2020:09:57:27] "WSCONNECTING /ws/score/" - -
2020-01-25 09:57:28,637 ERROR Exception inside application: Django can only handle ASGI/HTTP connections, not websocket.
File "/home/sofdeath/.local/lib/python3.7/site-packages/daphne/cli.py", line 30, in asgi
await self.app(scope, receive, send)
File "/home/sofdeath/.local/lib/python3.7/site-packages/django/core/handlers/asgi.py", line 146, in __call__
% scope['type']
Django can only handle ASGI/HTTP connections, not websocket.
127.0.0.1:44516 - - [25/Jan/2020:09:57:28] "WSDISCONNECT /ws/score/" - -
^C2020-01-25 09:57:39,126 INFO Killed 0 pending application instances
here is my asgi.py
import os
from django.core.asgi import get_asgi_application
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tabulator.settings')
application = get_asgi_application()
my routing.py:
from django.urls import re_path
from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
from channels.security.websocket import AllowedHostsOriginValidator, OriginValidator
import judge.routing
application = ProtocolTypeRouter({
# (http->django views is added by default)
'websocket': AllowedHostsOriginValidator(
AuthMiddlewareStack(
URLRouter(
judge.routing.websocket_urlpatterns
)
)
),
})
and in my settings.py:
INSTALLED_APPS = [
...
'channels',
]
...
WSGI_APPLICATION = 'tabulator.wsgi.application'
ASGI_APPLICATION = "tabulator.routing.application"
...
CHANNEL_LAYERS = {
"default": {
'BACKEND': 'channels_redis.core.RedisChannelLayer',
'CONFIG': {
"hosts": [('127.0.0.1', 6379)],
},
},
}

Answer 1

change your asgi.py to this:
import os
import django
from channels.routing import get_default_application
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tabulator.settings')
django.setup()
application = get_default_application()

Answer 2

You need to change your asgi.py according to this
# mysite/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
)
),
})

Answer 3

change your asgi.py as #ahmad says and edit your settings.py to this:
CHANNEL_LAYERS = {
"default": {
'BACKEND': 'channels_redis.core.RedisChannelLayer',
'CONFIG': {
"hosts": [("redis", 6379)],
},
},
}
and be sure that DEBUG = False. That is because you are not running your project on local server it it will throw an error if you use "127.0.0.1" or "localhost".