Re: I am struggling with calling consumer.py function from views to consumer in django here ismy code. Please help me. I am calling Asyncwebsocketconsumer

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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