asgi + daphne

docker-compose.yml

@@ -1,3 +1,4 @@
+version: '3.8'
 
 services:
   db:
@@ -13,6 +14,7 @@ services:
 
   web:
     build: .
+    command: daphne -b 0.0.0.0 -p 8000 testapi.asgi:application
     ports:
       - "8000:8000"
     volumes:

nginx/nginx.conf

@@ -1,8 +1,11 @@
-upstream django {
-    server web:8000;
-}
+events {}
 
-server {
+http {
+    upstream django {
+        server web:8000;
+    }
+
+    server {
         listen 80;
         server_name localhost;
 
@@ -30,5 +33,10 @@ server {
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+        }
     }
 }

requirements.txt

@@ -7,3 +7,4 @@ requests
 django-cors-headers
 Pillow
 python-dotenv
+channels>=4.0

testapi/asgi.py

@@ -8,9 +8,21 @@ https://docs.djangoproject.com/en/5.1/howto/deployment/asgi/
 """
 
 import os
-
+from channels.routing import ProtocolTypeRouter, URLRouter
+from channels.auth import AuthMiddlewareStack
 from django.core.asgi import get_asgi_application
 
+from .routing import websocket_urlpatterns
+
 os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testapi.settings')
 
-application = get_asgi_application()
+django_asgi_app = get_asgi_application()
+
+application = ProtocolTypeRouter({
+    "http": django_asgi_app,
+    "websocket": AuthMiddlewareStack(
+        URLRouter(
+             websocket_urlpatterns
+        )
+    ),
+})

testapi/consumers.py

@@ -0,0 +1,14 @@
+
+from channels.generic.websocket import AsyncWebsocketConsumer
+import json
+
+class EchoConsumer(AsyncWebsocketConsumer):
+    async def connect(self):
+        await self.accept()
+        await self.send(text_data=json.dumps({"message": "WebSocket connected!"}))
+
+    async def disconnect(self, close_code):
+        pass
+
+    async def receive(self, text_data):
+        await self.send(text_data=json.dumps({"echo": text_data}))

testapi/routing.py

@@ -0,0 +1,8 @@
+# routing.py
+
+from django.urls import path
+from . import consumers
+
+websocket_urlpatterns = [
+    path("ws/echo/", consumers.EchoConsumer.as_asgi()),
+]

testapi/settings.py

@@ -99,7 +99,7 @@ TEMPLATES = [
 ]
 
 WSGI_APPLICATION = 'testapi.wsgi.application'
-
+ASGI_APPLICATION = 'testapi.asgi.application'
 
 # Database
 # https://docs.djangoproject.com/en/5.1/ref/settings/#databases