Get id's of people that are using your facebook app at this moment

Question

How can I get a list of all the people that are using my Facebook app at this moment? Is that even possible? I need it in order to compare with user's friends, so the users would know if one of their friends playing the game right now...

Answer 1

You would need to store and surface this information in your own system. There is no Facebook API or method that returns this information.