Backend Boilerplates
python
Intermediate
FastAPI JWT Auth Dependency
Drop-in FastAPI dependency that validates HS256 Bearer tokens and injects a typed user payload.
python
from fastapi import Depends, HTTPException, status
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
import jwt, os
bearer = HTTPBearer()
SECRET = os.environ['JWT_SECRET']
def current_user(creds: HTTPAuthorizationCredentials = Depends(bearer)) -> dict:
try:
return jwt.decode(creds.credentials, SECRET, algorithms=['HS256'])
except jwt.PyJWTError:
raise HTTPException(status.HTTP_401_UNAUTHORIZED, 'Invalid token')Prerequisites
- fastapi
- PyJWT
Pro Tips
- → Store JWT_SECRET in a secrets manager.
- → Add exp claim to every token.
Commercial Licensing
Acquire a production access token or template license for enterprise deployment.
Module Info
- Language
- python
- Level
- Intermediate
- Read time
- 4 min
- Published
- Jun 2024
- License
- Commercial License
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