add ws

api/asgi.py

@@ -9,8 +9,20 @@ https://docs.djangoproject.com/en/5.1/howto/deployment/asgi/
 
 import os
 
+from channels.routing import ProtocolTypeRouter, URLRouter
+from channels.auth import AuthMiddlewareStack
+from channels.security.websocket import AllowedHostsOriginValidator
+
 from django.core.asgi import get_asgi_application
+from chat.url import websocket_urlpatterns
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'api.settings')
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "api.settings")
 
-application = get_asgi_application()
+application = ProtocolTypeRouter(
+    {
+        "http": get_asgi_application(),
+        "websocket": AllowedHostsOriginValidator(
+            AuthMiddlewareStack(URLRouter(websocket_urlpatterns))
+        ),
+    }
+)

api/settings.py

@@ -47,12 +47,14 @@ INSTALLED_APPS = [
     "django.contrib.sessions",
     "django.contrib.messages",
     "django.contrib.staticfiles",
+    "channels",
     "ninja",
     "corsheaders",
     "django_extensions",
     "account",
     "task",
     "submission",
+    "chat",
 ]
 
 MIDDLEWARE = [
@@ -85,7 +87,7 @@ TEMPLATES = [
 ]
 
 WSGI_APPLICATION = "api.wsgi.application"
-
+ASGI_APPLICATION = "api.asgi.application"
 
 # Database
 # https://docs.djangoproject.com/en/5.1/ref/settings/#databases
@@ -129,6 +131,16 @@ else:
     # 配置缓存
     CACHES = PROD_CACHES
 
+    # WebSocket 的缓存
+    CHANNEL_LAYERS = {
+        "default": {
+            "BACKEND": "channels_redis.core.RedisChannelLayer",
+            "CONFIG": {
+                "hosts": [(os.getenv("REDIS_HOST"), 6379)],
+            },
+        },
+    }
+
 # Password validation
 # https://docs.djangoproject.com/en/5.1/ref/settings/#auth-password-validators
 

chat/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class ChatConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'chat'

chat/consumers.py

@@ -0,0 +1,17 @@
+import json
+
+from channels.generic.websocket import WebsocketConsumer
+
+
+class ChatConsumer(WebsocketConsumer):
+    def connect(self):
+        self.accept()
+
+    def disconnect(self, close_code):
+        pass
+
+    def receive(self, text_data):
+        text_data_json = json.loads(text_data)
+        message = text_data_json["message"]
+
+        self.send(text_data=json.dumps({"message": message}))

chat/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

chat/url.py

@@ -0,0 +1,6 @@
+from django.urls import path
+from .consumers import ChatConsumer
+
+websocket_urlpatterns = [
+    path("ws/chat/", ChatConsumer.as_asgi()),
+]

pyproject.toml

@@ -16,4 +16,6 @@ dependencies = [
     "uvicorn>=0.34.0",
     "django-redis>=5.4.0",
     "redis>=5.0.1",
+    "channels>=4.2.2",
+    "channels-redis>=4.2.1",
 ]

requirements.txt

@@ -1,5 +1,7 @@
 annotated-types==0.7.0
 asgiref==3.9.1
+channels==4.2.2
+channels-redis==4.2.1
 click==8.2.1
 django==5.2.4
 django-cors-headers==4.7.0
@@ -11,6 +13,7 @@ email-validator==2.2.0
 gunicorn==23.0.0
 h11==0.16.0
 idna==3.10
+msgpack==1.1.1
 packaging==25.0
 psycopg==3.2.9
 psycopg-binary==3.2.9

uv.lock

@@ -20,6 +20,34 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/7c/3c/0464dcada90d5da0e71018c04a140ad6349558afb30b3051b4264cc5b965/asgiref-3.9.1-py3-none-any.whl", hash = "sha256:f3bba7092a48005b5f5bacd747d36ee4a5a61f4a269a6df590b43144355ebd2c", size = 23790, upload-time = "2025-07-08T09:07:41.548Z" },
 ]
 
+[[package]]
+name = "channels"
+version = "4.2.2"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "asgiref" },
+    { name = "django" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/16/d6/049f93c3c96a88265a52f85da91d2635279261bbd4a924b45caa43b8822e/channels-4.2.2.tar.gz", hash = "sha256:8d7208e48ab8fdb972aaeae8311ce920637d97656ffc7ae5eca4f93f84bcd9a0", size = 26647, upload-time = "2025-03-30T14:59:20.35Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/cc/bf/4799809715225d19928147d59fda0d3a4129da055b59a9b3e35aa6223f52/channels-4.2.2-py3-none-any.whl", hash = "sha256:ff36a6e1576cacf40bcdc615fa7aece7a709fc4fdd2dc87f2971f4061ffdaa81", size = 31048, upload-time = "2025-03-30T14:59:18.969Z" },
+]
+
+[[package]]
+name = "channels-redis"
+version = "4.2.1"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "asgiref" },
+    { name = "channels" },
+    { name = "msgpack" },
+    { name = "redis" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/c7/6d/c379c9feea4522cbdb4eba9b3d23a6270ba8cbd94e847b21834d898109d6/channels_redis-4.2.1.tar.gz", hash = "sha256:8375e81493e684792efe6e6eca60ef3d7782ef76c6664057d2e5c31e80d636dd", size = 31152, upload-time = "2024-11-15T12:58:49.836Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/a6/aa/981d08ae9627c3b9d8dd150f0fe644122a351abc1f47bcf53d2bfff80d91/channels_redis-4.2.1-py3-none-any.whl", hash = "sha256:2ca33105b3a04b5a327a9c47dd762b546f30b76a0cd3f3f593a23d91d346b6f4", size = 20487, upload-time = "2024-11-15T12:58:47.847Z" },
+]
+
 [[package]]
 name = "click"
 version = "8.2.1"
@@ -158,6 +186,24 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/76/c6/c88e154df9c4e1a2a66ccf0005a88dfb2650c1dffb6f5ce603dfbd452ce3/idna-3.10-py3-none-any.whl", hash = "sha256:946d195a0d259cbba61165e88e65941f16e9b36ea6ddb97f00452bae8b1287d3", size = 70442, upload-time = "2024-09-15T18:07:37.964Z" },
 ]
 
+[[package]]
+name = "msgpack"
+version = "1.1.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/45/b1/ea4f68038a18c77c9467400d166d74c4ffa536f34761f7983a104357e614/msgpack-1.1.1.tar.gz", hash = "sha256:77b79ce34a2bdab2594f490c8e80dd62a02d650b91a75159a63ec413b8d104cd", size = 173555, upload-time = "2025-06-13T06:52:51.324Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/a1/38/561f01cf3577430b59b340b51329803d3a5bf6a45864a55f4ef308ac11e3/msgpack-1.1.1-cp313-cp313-macosx_10_13_x86_64.whl", hash = "sha256:3765afa6bd4832fc11c3749be4ba4b69a0e8d7b728f78e68120a157a4c5d41f0", size = 81677, upload-time = "2025-06-13T06:52:16.64Z" },
+    { url = "https://files.pythonhosted.org/packages/09/48/54a89579ea36b6ae0ee001cba8c61f776451fad3c9306cd80f5b5c55be87/msgpack-1.1.1-cp313-cp313-macosx_11_0_arm64.whl", hash = "sha256:8ddb2bcfd1a8b9e431c8d6f4f7db0773084e107730ecf3472f1dfe9ad583f3d9", size = 78603, upload-time = "2025-06-13T06:52:17.843Z" },
+    { url = "https://files.pythonhosted.org/packages/a0/60/daba2699b308e95ae792cdc2ef092a38eb5ee422f9d2fbd4101526d8a210/msgpack-1.1.1-cp313-cp313-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:196a736f0526a03653d829d7d4c5500a97eea3648aebfd4b6743875f28aa2af8", size = 420504, upload-time = "2025-06-13T06:52:18.982Z" },
+    { url = "https://files.pythonhosted.org/packages/20/22/2ebae7ae43cd8f2debc35c631172ddf14e2a87ffcc04cf43ff9df9fff0d3/msgpack-1.1.1-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:9d592d06e3cc2f537ceeeb23d38799c6ad83255289bb84c2e5792e5a8dea268a", size = 423749, upload-time = "2025-06-13T06:52:20.211Z" },
+    { url = "https://files.pythonhosted.org/packages/40/1b/54c08dd5452427e1179a40b4b607e37e2664bca1c790c60c442c8e972e47/msgpack-1.1.1-cp313-cp313-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:4df2311b0ce24f06ba253fda361f938dfecd7b961576f9be3f3fbd60e87130ac", size = 404458, upload-time = "2025-06-13T06:52:21.429Z" },
+    { url = "https://files.pythonhosted.org/packages/2e/60/6bb17e9ffb080616a51f09928fdd5cac1353c9becc6c4a8abd4e57269a16/msgpack-1.1.1-cp313-cp313-musllinux_1_2_aarch64.whl", hash = "sha256:e4141c5a32b5e37905b5940aacbc59739f036930367d7acce7a64e4dec1f5e0b", size = 405976, upload-time = "2025-06-13T06:52:22.995Z" },
+    { url = "https://files.pythonhosted.org/packages/ee/97/88983e266572e8707c1f4b99c8fd04f9eb97b43f2db40e3172d87d8642db/msgpack-1.1.1-cp313-cp313-musllinux_1_2_i686.whl", hash = "sha256:b1ce7f41670c5a69e1389420436f41385b1aa2504c3b0c30620764b15dded2e7", size = 408607, upload-time = "2025-06-13T06:52:24.152Z" },
+    { url = "https://files.pythonhosted.org/packages/bc/66/36c78af2efaffcc15a5a61ae0df53a1d025f2680122e2a9eb8442fed3ae4/msgpack-1.1.1-cp313-cp313-musllinux_1_2_x86_64.whl", hash = "sha256:4147151acabb9caed4e474c3344181e91ff7a388b888f1e19ea04f7e73dc7ad5", size = 424172, upload-time = "2025-06-13T06:52:25.704Z" },
+    { url = "https://files.pythonhosted.org/packages/8c/87/a75eb622b555708fe0427fab96056d39d4c9892b0c784b3a721088c7ee37/msgpack-1.1.1-cp313-cp313-win32.whl", hash = "sha256:500e85823a27d6d9bba1d057c871b4210c1dd6fb01fbb764e37e4e8847376323", size = 65347, upload-time = "2025-06-13T06:52:26.846Z" },
+    { url = "https://files.pythonhosted.org/packages/ca/91/7dc28d5e2a11a5ad804cf2b7f7a5fcb1eb5a4966d66a5d2b41aee6376543/msgpack-1.1.1-cp313-cp313-win_amd64.whl", hash = "sha256:6d489fba546295983abd142812bda76b57e33d0b9f5d5b71c09a583285506f69", size = 72341, upload-time = "2025-06-13T06:52:27.835Z" },
+]
+
 [[package]]
 name = "packaging"
 version = "25.0"
@@ -325,6 +371,8 @@ name = "webapi"
 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [
+    { name = "channels" },
+    { name = "channels-redis" },
     { name = "django" },
     { name = "django-cors-headers" },
     { name = "django-extensions" },
@@ -340,6 +388,8 @@ dependencies = [
 
 [package.metadata]
 requires-dist = [
+    { name = "channels", specifier = ">=4.2.2" },
+    { name = "channels-redis", specifier = ">=4.2.1" },
     { name = "django", specifier = ">=5.1.6" },
     { name = "django-cors-headers", specifier = ">=4.7.0" },
     { name = "django-extensions", specifier = ">=3.2.3" },