FaceBook friends.getAppUsers replacement

I am trying to find friends who have already installed the application. After doing much research I found that FaceBook has a way to do this however it is marked as legacy.

Is there a new way to do this via the graph API? Comparing UID's one by one to peop开发者_开发技巧le already in my database would be way to slow.

Facebook FQL queries are still supported and not deprecated, so you could run a query like:

SELECT uid, name FROM user
WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me())
AND is_app_user = 1

with a url like (url encode this and add your users access token):

https://api.facebook.com/method/fql.query?query=SELECT uid, name FROM user WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) AND is_app_user = 1&access_token=...

However I have found this to be more reliable to do against my own database. If you setup indexing properly and do a IN sql statement it should be really fast as you wouldn't need to do it one by one.