I wanted to record the request result, but an error occurred while retrieving the content

[findmio]

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Issue Content

I use fastapi 0.99.1

Here is my custom middleware

import time

from fastapi import Request
from starlette.middleware.base import BaseHTTPMiddleware
from uvicorn.protocols.utils import get_path_with_query_string
from starlette.responses import StreamingResponse
from app.core.logger import access_logger as logger


class AccessLogMiddleware(BaseHTTPMiddleware):
    async def dispatch(self, request: Request, call_next):
        start_time = time.perf_counter_ns()

        response: StreamingResponse = await call_next(request)

        end_time = time.perf_counter_ns()

        process_time = round((end_time - start_time) / 10**9, 3)

        status_code = response.status_code
        path = get_path_with_query_string(request.scope)
        client_host = request.client.host
        client_port = request.client.port
        http_method = request.method
        content = response.content

        logger.info(
            f"{http_method} | status_code: {status_code} | {path} | time: {process_time} s | {client_host}:{client_port} | content: {content}")

        return response

An exception will be thrown here：'_StreamingResponse' object has no attribute 'content'

I would like to ask how to solve it, thank you