title: Facebook Graph API User object subscriptions Whitelisting
body: <p>in my iPhone app, I implemented the Facebook API, to piggy back on their user identification.</p>
  
  <p>Now, rather than polling Facebook every once in a while to see if the information of a logged in user has changed, I would like to use the 'User object subscriptions'. From <a href="https://developers.facebook.com/docs/graph-api/real-time-updates/v2.2" rel="nofollow noreferrer">this</a> document I learned, that I have to create a Callback URL (<a href="https://stackoverflow.com/questions/24110277/how-to-set-up-facebook-callback-url">done, and tested</a>), and that my app needs to be Whitelisted.</p>
  
  <p>On developers.facebook.com/apps/ I can't find a way to apply for being whitelisted, and Google doesn't seem to be my friend anymore.</p>
  
  <p>I hope <em>you</em> are.</p>