Django 3.x 原生支持websocket 配置

websocket.py

 1 # websocket.py
 2 async def websocket_application(scope, receive, send):
 3     while True:
 4         event = await receive()
 5
 6         if event['type'] == 'websocket.connect':
 7             await send({
 8                 'type': 'websocket.accept'
 9             })
10
11         if event['type'] == 'websocket.disconnect':
12             break
13
14         if event['type'] == 'websocket.receive':
15             if event['text'] == 'ping':
16                 await send({
17                     'type': 'websocket.send',
18                     'text': 'pong!'
19                 })

asgi.py

 1 """
 2 ASGI config for chatroom project.
 3
 4 It exposes the ASGI callable as a module-level variable named ``application``.
 5
 6 For more information on this file, see
 7 https://docs.djangoproject.com/en/3.1/howto/deployment/asgi/
 8 """
 9
10 import os
11
12 from django.core.asgi import get_asgi_application
13 from chatroom.websocket import websocket_application
14
15 os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'chatroom.settings')
16
17 django_application = get_asgi_application()
18
19 async def application(scope, receive, send):
20   if scope['type'] == 'http':
21     await django_application(scope, receive, send)
22   elif scope['type'] == 'websocket':
23     await websocket_application(scope, receive, send)
24   else:
25     raise NotImplementedError(f"Unknown scope type {scope['type']}")