JWT Token for a Login Decorator

Using a JWT token for a login decoratoris similar to checking hashed password. You just have to use a method to decode the token to see if a payload or key you used to encode your token is retrieved.

jwt.decode(encoded_jwt, 'secret', algorithms=['HS256'])

This is all that is to it, and it is really simple. But the problem that I ran into while writing this was that I messed up the order of positional arguments and kept giving the encoded_jwt as the second argument.

I tried so hard to look this up on StackOverflow, but couldn’t find anyone who made a stupid mistake like I did. So I fixed my code like below, and it is now working as a login decorator

import json
import jwt
import db_settings

from django.http import JsonResponse

def login_decorator(func):

    def login_wrapper(self, request, *args, **kwargs):
        token = request.headers["Authentication"]

        team_name = "team_babKKUNG"
        key       = db_settings.LUNCHBUDDYDATABASES["jwt"]["KEY"]
        algorithm = 'HS256'

        check_auth = jwt.decode(token, key, algorithm)

        if check_auth["iss"] == team_name:
            return func(self, request, *args, **kwargs)

        else :
            return JsonResponse({"message": "승인되지 않은 사용자입니다."})

    return login_wrapper