title: Google App Engine (GAE) response code and cookie on Android
body: <p>I am trying to login my Android users with their Google accounts. I managed to get auth token from AccountManager. I also found some info that I need to use Google App Engine (so I did). I wrote some code (it is not the issue) and I have two questions. Maybe someone can help me.</p>
  
  <ol>
  <li><p>I was following <a href="http://blog.notdot.net/2010/05/Authenticating-against-App-Engine-from-an-Android-app" rel="nofollow">this</a> tutorial. I understand most of it. But should I write any server-side scripts? This tutorial doesn't mention any. Also according to this tutorial I should get code 302 response, which I get. Does it mean that authentication was positive? Or maybe now I have to do something?</p></li>
  <li><p>I am getting auth cookie (I think it is auth cookie) which contains very long value (I think over 500 symbols), expiration date and name. How should I use this cookie? Or maybe I don't have to use it? How can I use it to get user google account username? (I think there is that kind of value, different from email address)</p></li>
  </ol>
  
  <p>Anyone can help?</p>
  
  <p>Thanks in advance.</p>