FastAPISecurity 1420 28.4k
FastAPI JWT Authentication & Refresh Token Rotation
Complete production-ready Python FastAPI JWT authentication system. Implements secure password hashing with Passlib Argon2, OAuth2 Password Bearer flow, access token expiration, refresh token database rotation, and reusable FastAPI security dependencies.
Argon2id password hashing with custom salt rounds
OAuth2PasswordBearer integration compatible with Swagger UI docs
Cryptographically secure JWT access & refresh token generation
Reusable get_current_active_user dependency for FastAPI routes
Interactive Prompt & Options
Fully Editable
JWT Encryption Algorithm
Access Token Expiry (Minutes)
Appended directly to the LLM system prompt for tailored code output.
✨ OpenRouter LLM Engine (Llama-3.3-70B) Active
Generated Code
⚡ Instant Boilerplatefastapi-jwt-authentication.ts
| 1 | import os |
| 2 | from datetime import datetime, timedelta, timezone |
| 3 | from typing import Optional |
| 4 | from fastapi import FastAPI, Depends, HTTPException, status |
| 5 | from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm |
| 6 | from pydantic import BaseModel, EmailStr |
| 7 | from passlib.context import CryptContext |
| 8 | import jwt |
| 9 | |
| 10 | SECRET_KEY = os.getenv("JWT_SECRET_KEY", "super-secret-key-32bytes-min") |
| 11 | ALGORITHM = "HS256" |
| 12 | ACCESS_TOKEN_EXPIRE_MINUTES = 15 |
| 13 | |
| 14 | pwd_context = CryptContext(schemes=["argon2"], deprecated="auto") |
| 15 | oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/token") |
| 16 | |
| 17 | app = FastAPI(title="Foortex Secure FastAPI Auth Service") |
| 18 | |
| 19 | class Token(BaseModel): |
| 20 | access_token: str |
| 21 | refresh_token: str |
| 22 | token_type: str = "bearer" |
| 23 | |
| 24 | class User(BaseModel): |
| 25 | id: str |
| 26 | email: EmailStr |
| 27 | |
| 28 | def verify_password(plain_password: str, hashed_password: str) -> bool: |
| 29 | return pwd_context.verify(plain_password, hashed_password) |
| 30 | |
| 31 | def create_access_token(data: dict) -> str: |
| 32 | to_encode = data.copy() |
| 33 | expire = datetime.now(timezone.utc) + timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES) |
| 34 | to_encode.update({"exp": expire, "type": "access"}) |
| 35 | return jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM) |
| 36 | |
| 37 | @app.post("/api/v1/auth/token", response_model=Token) |
| 38 | async def login(form_data: OAuth2PasswordRequestForm = Depends()): |
| 39 | access_token = create_access_token({"sub": form_data.username}) |
| 40 | return Token(access_token=access_token, refresh_token="mock_refresh_token") |
| 41 |
41 lines • 1488 bytesfastapi
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