Adding validation and updating auth model

cookie_api/auth.py

@@ -4,6 +4,7 @@ from apistar import Component, Settings, http, Route, Include
 from apistar.backends.sqlalchemy_backend import Session
 from apistar_jwt.authentication import get_jwt
 from apistar_jwt.token import JWT
+
 from cookie_api.models import User
 
 # /auth/register