switch from WSGI using uWSGI to ASGI using custom event loop based on uvicorn

core/notify_sessions/consumers.py

@@ -0,0 +1,40 @@
+import json
+
+from channels.generic.websocket import AsyncWebsocketConsumer
+
+
+class NotifyConsumer(AsyncWebsocketConsumer):
+    def __init__(self, *args, **kwargs):
+        super().__init__(args, kwargs)
+        self.room_group_name = None
+        self.event_slug = None
+
+    async def connect(self):
+        self.event_slug = self.scope["url_route"]["kwargs"]["event_slug"]
+        self.room_group_name = f"chat_{self.event_slug}"
+
+        # 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": "chat.message", "message": message}
+        )
+
+    # Receive message from room group
+    async def chat_message(self, event):
+        message = event["message"]
+
+        # Send message to WebSocket
+        await self.send(text_data=json.dumps({"message": message}))