backend/app/utils/jwt_handler.py

from datetime import datetime, timedelta, UTC
from jose import jwt
from app.core.config import settings

ALGORITHM = "HS256"
ACCESS_TOKEN_EXPIRE_MINUTES = 43200 # 30 Days

def create_access_token(data: dict):
    to_encode = data.copy()
    
    expire = datetime.now(UTC) + timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    to_encode.update({"exp": expire})
    
    encoded_jwt = jwt.encode(to_encode, settings.JWT_SECRET, algorithm=ALGORITHM)
    return encoded_jwt