FastAPI 错误：HTTPBasic.__call__() 缺少 1 个必需的位置参数：'request'

Question

我正在尝试使用 FastAPI 创建一个带有身份验证的简单 WebSocket 应用程序，但添加身份验证后我遇到了问题，

/{id}

请求通过，但WebSocket连接

/ws/{client_id}

由于以下错误而失败

ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "D:\Installations\envs\chat-app\lib\site-packages\uvicorn\protocols\websockets\websockets_impl.py", line 240, in run_asgi
    result = await self.app(self.scope, self.asgi_receive, self.asgi_send)
  File "D:\Installations\envs\chat-app\lib\site-packages\uvicorn\middleware\proxy_headers.py", line 69, in __call__
    return await self.app(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\fastapi\applications.py", line 1054, in __call__
    await super().__call__(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\applications.py", line 123, in __call__
    await self.middleware_stack(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\middleware\errors.py", line 151, in __call__
    await self.app(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\middleware\exceptions.py", line 65, in __call__
    await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\_exception_handler.py", line 64, in wrapped_app
    raise exc
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\_exception_handler.py", line 53, in wrapped_app
    await app(scope, receive, sender)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\routing.py", line 756, in __call__
    await self.middleware_stack(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\routing.py", line 776, in app
    await route.handle(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\routing.py", line 373, in handle
    await self.app(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\routing.py", line 96, in app
    await wrap_app_handling_exceptions(app, session)(scope, receive, send)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\_exception_handler.py", line 64, in wrapped_app
    raise exc
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\_exception_handler.py", line 53, in wrapped_app
    await app(scope, receive, sender)
  File "D:\Installations\envs\chat-app\lib\site-packages\starlette\routing.py", line 94, in app
    await func(session)
  File "D:\Installations\envs\chat-app\lib\site-packages\fastapi\routing.py", line 338, in app
    solved_result = await solve_dependencies(
  File "D:\Installations\envs\chat-app\lib\site-packages\fastapi\dependencies\utils.py", line 572, in solve_dependencies
    solved_result = await solve_dependencies(
  File "D:\Installations\envs\chat-app\lib\site-packages\fastapi\dependencies\utils.py", line 600, in solve_dependencies
    solved = await call(**sub_values)
TypeError: HTTPBasic.__call__() missing 1 required positional argument: 'request'
INFO:     connection open
INFO:     connection closed

代码：

app = FastAPI()
security = HTTPBasic()
templates = Jinja2Templates(directory="templates")


class ConnectionManager:
    def __init__(self):
        self.active_connections: List[WebSocket] = []

    async def connect(self, websocket: WebSocket):
        await websocket.accept()
        self.active_connections.append(websocket)

    def disconnect(self, websocket: WebSocket):
        self.active_connections.remove(websocket)

    async def send_personal_message(self, message: str, websocket: WebSocket):
        await websocket.send_text(message)

    async def broadcast(self, message: str, websocket: WebSocket) :
        for connection in self.active_connections:
            if (connection == websocket):
                continue
            await connection.send_text(message)

connectionmanager = ConnectionManager()

def get_current_username(
    credentials: Annotated[HTTPBasicCredentials, Depends(security)],
):
    is_correct_username, is_correct_password= validate_user(credentials.username.encode("utf8"),credentials.password.encode("utf8"))
    
    if not (is_correct_username and is_correct_password):
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Basic"},
        )
    return credentials.username

@app.get("/{id}", response_class=HTMLResponse)
def read_user(id: int,  username: Annotated[str, Depends(get_current_username)], request: Request):
    # Render the HTML template
    return templates.TemplateResponse("index.html", {"request": request})


@app.websocket("/ws/{client_id}")
async def websocket_endpoint(
        websocket: WebSocket, client_id: int, username: Annotated[str, Depends(get_current_username)], request: Request):
    # accept connections
    await connectionmanager.connect(websocket)
    try:
        while True:
            data = await websocket.receive_text()
            await connectionmanager.send_personal_message(f"You : {data}", websocket)
            await connectionmanager.broadcast(f"Client #{client_id}: {data}", websocket)

    except WebSocketDisconnect:
        connectionmanager.disconnect(websocket)
        await connectionmanager.broadcast(f"Client #{client_id} left the chat")

if __name__ == "__main__":
    uvicorn.run(app, host='localhost', port=8000)

在添加身份验证机制之前，它工作正常。

即使我添加了请求参数，我仍然收到此错误。

Answer 1

你找到解决办法了吗？