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我正在使用FastAPI，我想定义一个中间件，在其中可以截取前端传递的加密参数并解密，并将原始参数替换为解密后的参数，我该怎么办？我努力了

body = await request.body()
request._body = body

我也试过

async def set_body(request: Request, body: bytes):
    async def receive() -> Message:
        return {"type": "http.request", "body": body}

    request._receive = receive

async def get_body(request: Request) -> bytes:
    body = await request.body()
    set_body(request, body)
    return body

但是还是没有解决，哪位大神能解答一下，万分感谢！

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class GzipRequest(Request):
    async def body(self) -> bytes:
        # if not hasattr(self, "_body"):
        body = await super().body()
        # if "gzip" in self.headers.getlist("Content-Encoding"):
        #     body = gzip.decompress(body)
        self._body = body
        return self._body

class GzipRoute(APIRoute):
    def get_route_handler(self) -> Callable:
        original_route_handler = super().get_route_handler()

        async def custom_route_handler(request: Request) -> Response:
            request = GzipRequest(request.scope, request.receive)
            return await original_route_handler(request)

        return custom_route_handler
app.router.route_class = GzipRoute

这个方法我也试过了，还是不行！</p>

==================================================== =============

我已经解决了这个问题app.router.route_class = GzipRoute， 主要提示：在另一个类中定义路由时，您还需要创建一个路由类，例如：

router = APIRouter(route_class=GzipRoute)
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0 回答 0