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20 lines
762 B
Python
20 lines
762 B
Python
from starlette.middleware.base import BaseHTTPMiddleware
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from starlette.requests import Request
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from core.global_context import current_session
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from entity import AsyncSessionLocal
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class DbSessionMiddleWare(BaseHTTPMiddleware):
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async def dispatch(self,request: Request, call_next):
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async with AsyncSessionLocal() as session:
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# 设置会话到上下文变量
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token = current_session.set(session)
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try:
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response = await call_next(request)
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await session.commit()
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except Exception:
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await session.rollback()
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raise
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finally:
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# 重置上下文变量
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current_session.reset(token)
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return response |