title: Google App engine user authentication (python 3.7)
body: <p>I am looking for a <strong>simple</strong> method to authenticate (using Goggle account) users into an python 3.7 app running on GAE.
  In the past (using python 2.7) I have used 
  <a href="https://cloud.google.com/appengine/docs/standard/python/users/loginurls" rel="nofollow noreferrer">https://cloud.google.com/appengine/docs/standard/python/users/loginurls</a>
  and the logic was something like:</p>
  
  <pre><code>def my_end_point():
     if user is not authenticated:
         redirect_to_google_login()
     else:
        user_email = get_user_email_from_auth_service()
        do_the_endpoint_logic(user_email)
  </code></pre>
  
  <p>I would like to keep this simple logic under GAE python 3.7</p>
  
  <p>I have found <a href="https://github.com/realpython/materials/blob/master/flask-google-login/app.py" rel="nofollow noreferrer">this</a> and I was wondering if someone wrapped this logic with decorator..</p>
  
  <p>any directions?</p>