Facebook Graph API - likes returns me an empty set

Question

When I try to get all my "likes" (formerly fan pages) on Facebook Graph API, sometimes it returns me an empty set:

{    "data": [     ] } 

I tried with https://graph.facebook.com/me/likes?access_token=MY_ACCESS_TOKEN and with graph.facebook.com/vinch/likes?access_token=MY_ACCESS_TOKEN but the result is exactly the same (empty).

Any idea of what it can be? I need it to know if a user likes (is fan of) a specific page.

Answer 1

add user_likes permission to your application

Answer 2

I read in the Changelog of 2010-12-12:

GET [page-id]/members/[user-id] will return the individual user if he or she is a fan of the page (Graph API equivalent of pages.isFan) (rE322057)

So, you can check with Graph API if a known user_id is fan of a known page_id with exactly this syntax. You need to supply a valid access_token. With the fields parameter you can choose, what the API should return. E.g. append "&fields=id,name,picture" to get the id, name and picture in case the user is a fan.

{    "data": [       {          "id": "712084216",          "name": "Mike Bretz",          "picture": "http://profile.ak.fbcdn.net/hprofile-ak-snc4/hs842.snc4/70441_712084216_5491098_q.jpg"       }    ] } 

You'll get an empty result if the user is not a fan

{    "data": [     ] }