python 如何在FastAPI中间件中更改Header？

lyfkaqu1 于 2023-05-05 发布在 Python

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我需要将授权头从令牌替换为屏障
范例

@app.middleware("https")
async def replace_prefix_token(request: Request, call_next):
    if "Authorization" in request.headers and request.headers["Authorization"].split()[0] == "Token":
        request.headers["Authorization"] = request.headers["Authorization"].replace("Token", "Bearer")
    response = await call_next(request)
    return response

误差

TypeError: 'Headers' object does not support item assignment

python

来源：https://stackoverflow.com/questions/76177129/how-to-change-headers-in-fastapi-middleware

1条答案

按热度按时间

qco9c6ql1#

Headers本身是一个不可变的对象，但是你可以尝试使用update方法来修改header值：

from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse

app = FastAPI()

@app.middleware("http")
async def replace_prefix_token(request: Request, call_next):
    if "Authorization" in request.headers and request.headers["Authorization"].split()[0] == "Token":
        request.headers.update({"Authorization": request.headers["Authorization"].replace("Token", "Bearer")})
    response = await call_next(request)
    return response

@app.get("/")
async def root():
    return JSONResponse(content={"message": "Hello, world!"})

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python 如何在FastAPI中间件中更改Header？

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