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📝 Add annotations to HTTP middleware example #11530

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Merged
tiangolo merged 10 commits into from
Jun 17, 2025
Merged

📝 Add annotations to HTTP middleware example #11530

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44df018
Add annotations
Kilo59 May 4, 2024
071ec3f
Update applications.py
Kilo59 May 4, 2024
36b7d85
Update fastapi/applications.py
Kilo59 May 4, 2024
adcb567
Update fastapi/applications.py
Kilo59 May 4, 2024
83375dc
Apply suggestions from code review
Kilo59 May 4, 2024
51fa133
Merge branch 'master' into patch-1
svlandeg Aug 28, 2024
6b21625
Merge branch 'master' into patch-1
Kilo59 Oct 15, 2024
e9c2e73
Merge branch 'master' into patch-1
tiangolo Nov 9, 2024
d9ef507
Merge branch 'master' into patch-1
Kilo59 Apr 17, 2025
94f57fe
Merge branch 'master' into patch-1
Kilo59 May 9, 2025
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7 changes: 5 additions & 2 deletions fastapi/applications.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4515,14 +4515,17 @@ def middleware(

```python
import time
from typing import Awaitable, Callable

from fastapi import FastAPI, Request
from fastapi import FastAPI, Request, Response

app = FastAPI()


@app.middleware("http")
async def add_process_time_header(request: Request, call_next):
async def add_process_time_header(
request: Request, call_next: Callable[[Request], Awaitable[Response]]
) -> Response:
start_time = time.time()
response = await call_next(request)
process_time = time.time() - start_time
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