I have a website with some posts that have facebook like buttons. I would like to be able to sort those posts based on fb like count. I can get number of likes for any post querying https://graph.facebook.com/?ids=ABSOLUTE_URL_TO_POST but I would like to be able to subscribe to Graph Api, so endpoint of my server can get notified whenever someones likes any of those posts. That way I could store number of likes in my DB and then be able to sort posts based on that.
However, I am not able to find any suitable event in FB Graph API that I could subscribe to.
Any ideas? Thanks!