How to get a list of current online users of the facebook application?

Question

I am trying to create ajax based chat for my application users; I need to get a list of all online users of the application. Is there any way to get such a list using facebook aPI? if not, how can I implement this?

I appreciate your valuable suggestions.

Answer 1

You can get the user's online presence through FQL Query, but there is a bit of a delay when the user changes status.

First, you need to request permission online_presence (https://developers.facebook.com/docs/reference/api/permissions/)

FQL 'online_presence'. https://developers.facebook.com/docs/reference/fql/user/