24 lines
694 B
Python
24 lines
694 B
Python
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"""
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HTTP 中间件：request_id 注入。
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"""
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import uuid
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from loguru import logger
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from starlette.middleware.base import BaseHTTPMiddleware
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from starlette.requests import Request
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class RequestIdMiddleware(BaseHTTPMiddleware):
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"""Inject request_id into request.state and response headers, bind to loguru context."""
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async def dispatch(self, request: Request, call_next):
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request_id = request.headers.get("X-Request-ID") or str(uuid.uuid4())
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request.state.request_id = request_id
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with logger.contextualize(request_id=request_id):
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response = await call_next(request)
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response.headers["X-Request-ID"] = request_id
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return response
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