FastAPI/Starlette websocket.close()不接受“原因”论证

Question

我需要断开传入的WebSocket连接，以防用户已经与服务器进行了活动连接，为此，我正在按照Starlette文档中的建议调用服务器。然而，当我调用以下内容时：

await websocket.close(code=1000, reason='Connection refused as session already exists for user')

服务器使用以下堆栈跟踪崩溃，上面写着unexpected keyword argument 'reason'

app_1     | Traceback (most recent call last):
app_1     |   File "/usr/local/lib/python3.10/site-packages/uvicorn/protocols/websockets/websockets_impl.py", line 184, in run_asgi
app_1     |     result = await self.app(self.scope, self.asgi_receive, self.asgi_send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py", line 75, in __call__
app_1     |     return await self.app(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/fastapi/applications.py", line 211, in __call__
app_1     |     await super().__call__(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/applications.py", line 112, in __call__
app_1     |     await self.middleware_stack(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/middleware/errors.py", line 146, in __call__
app_1     |     await self.app(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/middleware/base.py", line 22, in __call__
app_1     |     await self.app(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/middleware/cors.py", line 76, in __call__
app_1     |     await self.app(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/exceptions.py", line 58, in __call__
app_1     |     await self.app(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 656, in __call__
app_1     |     await route.handle(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 315, in handle
app_1     |     await self.app(scope, receive, send)
app_1     |   File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 77, in app
app_1     |     await func(session)
app_1     |   File "/usr/local/lib/python3.10/site-packages/fastapi/routing.py", line 273, in app
app_1     |     await dependant.call(**values)
app_1     |   File "/app/code/./app/api/api_v1/ws/ws_manager.py", line 175, in websocket_endpoint
app_1     |     await manager.connect(user, websocket)
app_1     |   File "/app/code/./app/api/api_v1/ws/ws_manager.py", line 90, in connect
app_1     |     await websocket.close(code=1000, reason='Connection refused as session already exists for user')
app_1     | TypeError: WebSocket.close() got an unexpected keyword argument 'reason'

我需要让客户知道，由于特定的原因，连接被拒绝了。请告诉我我在这里做错了什么。

耽误您时间，实在对不起。

Answer 1

我运行的是一个旧版本的FastAPI，它的close()不支持“理性”参数。将FastAPI升级到最新版本解决了这个问题，因为最近引入了“原因”论点。