👀 Views: 194 💬 Answers: 1 📅 Created: 2025-09-13

python django websockets channels Python 3.x

After trying multiple solutions online, I still can't figure this out... I tried several approaches but none seem to work. Currently developing a real-time notification system using Django Channels and WebSocket. The user experience is critical, and I want to ensure that message delivery is as fast and efficient as possible. After setting up the channels, I noticed that when multiple clients connect, the message lag increases significantly. I've tried implementing a basic message queue with Redis, but I'm unsure if I'm using it optimally. Here's a snippet of how I set up the WebSocket consumer: ```python from channels.generic.websocket import AsyncWebsocketConsumer import json class NotificationConsumer(AsyncWebsocketConsumer): async def connect(self): self.user = self.scope['user'] self.group_name = f'user_notifications_{self.user.id}' await self.channel_layer.group_add(self.group_name, self.channel_name) await self.accept() async def disconnect(self, close_code): await self.channel_layer.group_discard(self.group_name, self.channel_name) async def receive(self, text_data): text_data_json = json.loads(text_data) message = text_data_json['message'] await self.channel_layer.group_send( self.group_name, { 'type': 'notification_message', 'message': message } ) async def notification_message(self, event): message = event['message'] await self.send(text_data=json.dumps({'message': message})) ``` To tackle the performance issues, I've also looked into optimizing the way messages are batched and sent. Currently, each notification triggers an immediate send. Is there a better way to group messages before sending them to clients? Perhaps throttling the messages or using a debounce technique could help mitigate the issue? Additionally, I’m considering implementing a more robust error handling mechanism to ensure users receive notifications even if the WebSocket connection drops temporarily. Does anyone have experience with enhancing WebSocket performance in Django Channels or any recommended best practices for handling a high volume of notifications? Any insights or code examples would be greatly appreciated. I'm working on a application that needs to handle this. How would you solve this?