4. JWT BÁSICO EN FASTAPI

4.3. Crear security.py

from jose import jwt
from passlib.context import CryptContext

SECRET_KEY = "ChuckNorris2026"
ALGORITHM = "HS256"

pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")

def hash_password(password: str) -> str:
    return pwd_context.hash(password)

def verify_password(password: str, password_hash: str) -> bool:
    return pwd_context.verify(password, password_hash)

def create_token(username: str) -> str:
    payload = {"sub": username}
    return jwt.encode(payload, SECRET_KEY, algorithm=ALGORITHM)

def decode_token(token: str) -> str:
    payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
    return payload["sub"]