authenticate.py

from functools import wraps
import jwt
from flask import request
from models.users import Users
from app_conf import SECRET_KEY


def token_required(f):
    @wraps(f)
    def decorated(*args, **kwargs):
        token = None
        if "Authorization" in request.headers:
            token = request.headers["Authorization"].split(" ")[1]
        if not token:
            return {
                "message": "Authentication Token is missing!",
                "error": "Unauthorized"
            }, 401
        try:
            data = jwt.decode(token, SECRET_KEY, algorithms=["HS256"])
            current_user = Users.get_by_id(data["user_id"])
            if current_user is None:
                return {
                    "message": "Invalid Authentication token!",
                    "error": "Unauthorized"
            }, 401
        except Exception as e:
            return {
                "message": "Internal Server Error",
                "error": str(e)
            }, 500

        return f(current_user, *args, **kwargs)

    return decorated