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https://github.com/fastapi-practices/fastapi-best-architecture.git
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YuWorm
b71179cea9
* Enhance plugin system with lifespan registry, setup hooks, and patching utilities * fix: remove registrar.py unused-import * Optimize implementations * Update function docs * update replace_middleware func docs * Recover deleted comments
26 lines
880 B
Python
26 lines
880 B
Python
from fastapi import FastAPI
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from starlette.middleware import Middleware
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def replace_middleware(
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app: FastAPI,
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original_middleware_cls: type,
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replacement_middleware_cls: type,
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**replacement_kwargs,
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) -> None:
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"""
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替换中间件（应在插件的 startup hook 中调用）
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:param app: FastAPI 应用实例
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:param original_middleware_cls: 原始中间件类
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:param replacement_middleware_cls: 替换后的中间件类
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:param replacement_kwargs: 传给替换后中间件的初始化参数
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:return:
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"""
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for index, middleware in enumerate(app.user_middleware):
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if middleware.cls is original_middleware_cls:
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app.user_middleware[index] = Middleware(replacement_middleware_cls, **replacement_kwargs)
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return
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raise ValueError(f'{original_middleware_cls.__name__} not found in app.user_middleware')
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