can you provide more details about the specific issues you are facing when
trying to call this method? Are you getting any error messages, or is the
function simply not being called? Any additional information you can
provide will help me better understand your problem.
I am providing you with one of my codes for your preference. Please find
the attached code in this email.If you have any questions or concerns,
please do not hesitate to reach out to me.
import json
from channels.generic.websocket import AsyncWebsocketConsumer
class NotificationConsumer(AsyncWebsocketConsumer):
async def connect(self):
self.room_name = self.scope['url_route']['kwargs']['room_name']
self.room_group_name = 'notification_%s' % self.room_name
# Join room group
await self.channel_layer.group_add(
self.room_group_name,
self.channel_name
)
await self.accept()
async def disconnect(self, close_code):
# Leave room group
await self.channel_layer.group_discard(
self.room_group_name,
self.channel_name
)
async def send_notification(self, event):
message = json.loads(event['message'])
# Send message to WebSocket
await self.send(text_data=json.dumps(message))
views.py
# order notification inside function ... when receiving order
message = "New order received ... .. ect...messages"
channel_layer = get_channel_layer()
async_to_sync(channel_layer.group_send)(
"notification_to_admin",
{
'type': 'send_notification',
'message': json.dumps(message)
}
)
"when using Django Channels, you need to use an ASGI server instead of a
traditional WSGI
server to serve your Django application.ASGI (Asynchronous Server Gateway
Interface) is a standard interface for
Python web servers to support asynchronous web applications. It allows for
more efficient handling of long-lived
connections, such as WebSockets, and enables Django to handle asynchronous
requests and responses."
asgi.py
import os
import django
from channels.routing import ProtocolTypeRouter, URLRouter
from django.core.asgi import get_asgi_application
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'EcomShoppers.settings')
django.setup()
from channels.auth import AuthMiddleware, AuthMiddlewareStack
from notifications.routing import websocket_urlpatterns
application = ProtocolTypeRouter({
"http": get_asgi_application(),
"websocket": AuthMiddlewareStack(
URLRouter(
websocket_urlpatterns
)
)
})
On Sunday, April 2, 2023 at 7:57:09 PM UTC+5:30 Sneha Vishwakarma wrote:
> from channels.generic.websocket import AsyncWebsocketConsumer
> import json
>
> class MyConsumer(AsyncWebsocketConsumer):
> async def connect(self):
> self.room_group_name = 'kafka'
>
> # Join room group
> await self.channel_layer.group_add(
> self.room_group_name,
> self.channel_name
> )
>
> await self.accept()
>
> async def disconnect(self, close_code):
> # Leave room group
> await self.channel_layer.group_discard(
> self.room_group_name,
> self.channel_name
> )
> # Receive message from WebSocket
> async def receive(self, text_data):
> text_data_json = json.loads(text_data)
> message = text_data_json['message']
>
> # Send message to room group
> await self.channel_layer.group_send(
> self.room_group_name,
> {
> 'type': 'kafka_message',
> 'message': message
> }
> )
>
> # Receive message from room group
> async def kafka_message(self, event):
> message = event['message']
> print('HERE')
> # Send message to WebSocket
> await self.send(text_data=json.dumps({
> 'message': message
> }))
>
>
>
> views.py
>
> from channels.layers import get_channel_layer
> from asgiref.sync import async_to_sync, sync_to_async
> from django.contrib.auth.decorators import login_required
> from django.template import loader
> from .models import artifactInfo
> from django.shortcuts import render
> from django.http import HttpResponse, HttpResponseNotFound, JsonResponse
> import os, mimetypes, json
> from .logic import send_message
> import logging
> logger = logging.getLogger(__name__)
>
> def testview(request):
> channel_layer = get_channel_layer()
>
> async_to_sync(channel_layer.group_send(
> 'kafka',
> {
> 'type': 'kafka.message',
> 'message': 'Test message'
> }
> ))
> return HttpResponse('<p>Done</p>')
>
>
>
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