Websocket url not found. (socket.onclose()) Please tell me what should I do to get rid of this error.

Using Django Async/Channels
1

“GET /rooms/friends/ HTTP/1.1” 200 654

Not Found: /ws/friends/

[26/Jul/2023 17:22:59] “GET /ws/friends/ HTTP/1.1” 404 2216

asgi.py

import os

from django.core.asgi import get_asgi_application
from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import chatapp.routing

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

application = ProtocolTypeRouter({
    'http' : get_asgi_application(),
    'websocket':AuthMiddlewareStack(
        URLRouter(
            chatapp.routing.websocket_urlpatterns
        )
    )
})

routing.py

from django.urls import path
from .import consumers

websocket_urlpatterns = [
    path('ws/<str:room_name>/',consumers.ChatConsumer.as_asgi()),
]

websocket code:

{{ chatroom.slug|json_script:"json-chatroomname" }}
<script>
    const chatRoomName = JSON.parse(document.getElementById('json-chatroomname').textContent)
    const chatSocket = new WebSocket(
        'ws://'
        + window.location.host
        + '/ws/'
        + chatRoomName
        + '/', "http"
    )

    chatSocket.onmessage = function(e){
        console.log("This is a message")
    }
    chatSocket.onclose = function(e){
        console.log('socket closed')
    }
</script>

setting.py

WSGI_APPLICATION = 'mysite.wsgi.application'
ASGI_APPLICATION = 'mysite.asgi.application'
CHANNEL_LAYERS = {
    'default':{
        'BACKEND':'channels.layers.InMemoryChannelLayer'
    }
}

consumer.py

from channels.generic.websocket import AsyncJsonWebsocketConsumer
import json
from asgiref.sync import sync_to_async

class ChatConsumer(AsyncJsonWebsocketConsumer):
    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.accept()

    async def disconnect(self):
        await self.channel_layer.group_discard(
            self.room_group_name,
            self.channel_layer
        )

models.py

from django.db import models

class ChatRoom(models.Model):
    name = models.CharField(max_length=100)
    slug = models.SlugField(unique=True)

urls.py

from django.contrib import admin
from django.urls import path, include
from . import views

urlpatterns = [
    path('', views.index,name='index'),
    path('<slug:slug>/', views.chatroom, name='chatroom'),
]

Console error:
(index):11 WebSocket connection to ‘ws://localhost:8000/ws/friends/’ failed:

2

Are you running this with daphne?

I think you might have a problem in routing.py. The urls should be using re_path and not path as stated in the last sentence of this section in the docs: Routing — Channels 4.0.0 documentation