Chatroom example problems.

[murodjon001]

I want to create a chatroom between users using channels in my django project! I wrote all the routing, consumer and other python files using the documentation but I got an error. Please help me to fix this error!here is the error i am getting:TypeError: object ChatRoomConsumer can't be used in 'await' expression WebSocket DISCONNECT /ws/chat/asma/ [127.0.0.1:56540]

from django.urls import re_path

from . import consumers

websocket_urlpatterns = [
re_path(r'ws/chat/(?P<room_name>\w+)/$', consumers.ChatRoomConsumer),
]

[murodjon001]

this consumers.py

import json
from asgiref.sync import async_to_sync,sync_to_async

from channels.generic.websocket import AsyncWebsocketConsumer

class ChatRoomConsumer(AsyncWebsocketConsumer):
async def connect(self):
self.room_name = self.scope['url_route']['kwargs']['room_name']
self.room_group_name = 'chat_%s' % self.room_name

    await self.channel_layer.group_add(
        self.room_group_name,
        self.channel_name
    )

    

    await self.channel_layer.group_send(
        self.room_group_name,
        {
            'type': 'tester_message',
            'tester': 'helloWorld',
        }

    )
    print('connect ishladi')
    self.accept()
    
async def tester_message(self,event):
    tester = event['tester']

    await self.send(text_data=json.dumps({
        'tester': tester,
    }))

    

async def disconnect(self, close_code):
    # return await super().disconnect(self, close_code):  bu kod avtomatik chiqdi ishlatib ko'rish kerak
    await self.channel_layer.group_discard(
        self.room.group_name,
        self.channel_name,
        print('disconnect ishladi')
    )

[murodjon001]

WSGI_APPLICATION = "hosptalsam.wsgi.application"
ASGI_APPLICATION = "hosptalsam.asgi.application"

ASGI_APPLICATION = "hosptalsam.routing.application"
CHANNEL_LAYERS = {
"default": {
"BACKEND": "channels_redis.core.RedisChannelLayer",
"CONFIG": {
"hosts": [("127.0.0.1", 6379)],
},
},
}

[murodjon001]

this hosptalsam/routing.url (core)

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

Initialize Django ASGI application early to ensure the AppRegistry

is populated before importing code that may import ORM models.

django_asgi_app = get_asgi_application()

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

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

[murodjon001]

asgiref==3.6.0
async-timeout==4.0.2
attrs==22.2.0
autobahn==23.1.2
Automat==22.10.0
backports.zoneinfo==0.2.1
cffi==1.15.1
channels==4.0.0
channels-redis==4.0.0
constantly==15.1.0
cryptography==39.0.2
daphne==4.0.0
Django==4.1.7
django-jazzmin==2.6.0
hyperlink==21.0.0
idna==3.4
incremental==22.10.0
msgpack==1.0.5
Pillow==9.4.0
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.21
pyOpenSSL==23.0.0
redis==4.5.1
service-identity==21.1.0
six==1.16.0
sqlparse==0.4.3
Twisted==22.10.0
txaio==23.1.1
typing-extensions==4.5.0
zope.interface==5.5.2

[murodjon001]

WebSocket HANDSHAKING /ws/chat/asma/ [127.0.0.1:56540]
Exception inside application: object ChatRoomConsumer can't be used in 'await' expression
Traceback (most recent call last):
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/django/contrib/staticfiles/handlers.py", line 101, in call
return await self.application(scope, receive, send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/routing.py", line 62, in call
return await application(scope, receive, send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/security/websocket.py", line 37, in call
return await self.application(scope, receive, send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/sessions.py", line 47, in call
return await self.inner(dict(scope, cookies=cookies), receive, send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/sessions.py", line 263, in call
return await self.inner(wrapper.scope, receive, wrapper.send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/auth.py", line 185, in call
return await super().call(scope, receive, send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/middleware.py", line 24, in call
return await self.inner(scope, receive, send)
File "/home/murodjon/Desktop/texnikum_web/myenv/lib/python3.8/site-packages/channels/routing.py", line 116, in call
return await application(
TypeError: object ChatRoomConsumer can't be used in 'await' expression
WebSocket DISCONNECT /ws/chat/asma/ [127.0.0.1:56540]

[carltongibson]

re_path(r'ws/chat/(?P<room_name>\w+)/$', consumers.ChatRoomConsumer),

TypeError: object ChatRoomConsumer can't be used in 'await' expression

You're missing an .as_asgi():

re_path(r'ws/chat/(?P<room_name>\w+)/$', consumers.ChatRoomConsumer.as_asgi()),

[murodjon001]

Thank you very much for the answer! My code worked!