flask authentication user without database

1class User(UserMixin):
2
3    def __init__(self, username, hash):
4        self.name = username
5        self.hash = hash
6
7    @property
8    def id(self):
9        return self.name
10
11
12@self.server.route('/api/login', methods=['GET', 'POST'])
13def login():
14    user = load_user(request.values.get('username'))
15    if user and user.hash == request.values.get('hash'):
16        login_user(user)
17        return jsonify(status='ok', username=user.username)
18    else:
19        return jsonify(status='error', message='wrong username or hash')