Facebook Graph API - “get likes of a comment of a picture” query returns empty array

Question

Hello Facebook gurus:)

I'd like some help on this one

This is a post I made on a picture and then I liked it:

{
"created_time" = "2011-06-07T23:23:19+0000";
from =     {
    id = xxxxxxxxxxxxxx;
    name = "Adrien xxxxxxxx";
};
id = "107817942643477_24293";
likes = 1;
message = baar;
"user_likes" = 1;
}

I'm trying to get the userID's of friends/me who liked this comment I made on a picture

I made this: https://graph.facebook.com/107817942643477_24293/likes?access_token=TOKEN

I tried too with Fql:

NSString *theQuery = [NSString stringWithFormat:@"SELECT likes FROM stream WHERE post_id=\"%@\"", postID];
id theResult = [[AppDelegate sharedFacebook]
    sendSynchronousRequestWithMethodName:@"fql.query"
    andParams:[NSMutableDictionary dictionaryWithObjectsAndKeys:
    theQuery, @"query", nil]
    andHttpMethod:@"GET"];

It doesn't work, maybe because this comment is liked to a picture and I should format the request differently?

The only thing I'm receiving is an empty array

{
data =     (
);
}

What am I doing wrong? Thanks in advance for any help on this one.

Ps: I'm using the iOS Facebook library, could it be broken?

Answer 1

You need to include the user id. Taking the example from the Facebook documentation here:

http://developers.facebook.com/docs/reference/api/Comment/

Click on the link there and add '/likes' before the query string containing the access token:

https://graph.facebook.com/19292868552_475058873552_14173716/likes?access_token=2227470867|2.AQDprvRAYwU-6lHe.3600.1309028400.0-604597322|Z4r0uxTK5ctlAn5rbs2NUNYZr88

If you remove the user id from the id, however...

https://graph.facebook.com/475058873552_14173716/likes?access_token=2227470867|2.AQDprvRAYwU-6lHe.3600.1309028400.0-604597322|Z4r0uxTK5ctlAn5rbs2NUNYZr88

...it won't work.

So you need to manually add the user id to your comment id if it's not already present.