title: Facebook friends ranking API
body: <p>Dear Facebook engineer and developers,</p>
  
  <p>I found this script <a href="https://github.com/arjun024/facebook-friends-ranking-score" rel="nofollow">here</a> that opens an ordered list of your friends based on the most contacted or viewed. Which is functionally needed by my next facebook app.</p>
  
  <p>My question is: in that github link, It is said that FB engineers are keep on changing the API. Is this API formally supported or it is supposed to be a secret? If this is formally supported, can anyone shows me where to find the API doc?</p>
  
  <p>PS: It would be nice if this API is formally supported by FB, because it can open a wide range of possibilities in which an application could serve their users better.</p>
  
  <p>Thanks.</p>