Instructions for FastAPI Authentication
Implement authentication in FastAPI:
- •
Security Schemes:
- •Import:
from fastapi.security import OAuth2PasswordBearer. - •Define:
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token").
- •Import:
- •
API Keys:
- •Header:
api_key = APIKeyHeader(name="X-API-KEY"). - •Query or Cookie similarly.
- •Header:
- •
JWT:
- •Use PyJWT: Encode/decode tokens.
- •Dependency:
def get_current_user(token: str = Depends(oauth2_scheme)): ....
- •
OAuth2 Flows:
- •Password flow:
@app.post("/token")returning access_token. - •Integrate with databases for users.
- •Password flow:
- •
Scopes:
- •
Security(oauth2_scheme, scopes=["read:items"]).
- •
- •
Best Practices:
- •Hash passwords with passlib or bcrypt.
- •Use HTTPS in production.
- •Handle token expiration and refresh.
References
Use the shared references located at: ../_shared/reference.md