fastapi-best-architecture/backend/middleware/access_middleware.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from fastapi import Request, Response
from starlette.middleware.base import BaseHTTPMiddleware, RequestResponseEndpoint

from backend.common.log import log
from backend.utils.timezone import timezone


class AccessMiddleware(BaseHTTPMiddleware):
    """请求日志中间件"""

    async def dispatch(self, request: Request, call_next: RequestResponseEndpoint) -> Response:
        """
        处理请求并记录访问日志

        :param request: FastAPI 请求对象
        :param call_next: 下一个中间件或路由处理函数
        :return:
        """
        start_time = timezone.now()
        response = await call_next(request)
        end_time = timezone.now()
        log.info(
            f'{request.client.host: <15} | {request.method: <8} | {response.status_code: <6} | '
            f'{request.url.path} | {round((end_time - start_time).total_seconds(), 3) * 1000.0}ms'
        )
        return response