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POHow to determine if Facebook users Unlike a URL?
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  1. POHow to determine if Facebook users Unlike a URL?
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    copied!<p>We have a web app where we need to track users "Likes" of URLs (not Facebook pages, external ones), because they earn credits for doing so.</p> <p>To do this we're using JQuery and the subscribe (edge.create) event and it's working great. <a href="http://developers.facebook.com/docs/reference/javascript/FB.Event.subscribe/" rel="noreferrer">http://developers.facebook.com/docs/reference/javascript/FB.Event.subscribe/</a></p> <p>Unfortunately we can't seem to figure out a way handle the case where a user "Likes" a URL through our site, earns a credit, then goes to their Facebook Wall and "Unlikes" it, essentially cheating the system.</p> <p>I played around with these two FQL queries. The 1st is supposed to return an object ID of a URL, and the 2nd should return the list of user_ids who "Like" the URL. But they seem inconsistent and don't always return data for every case I tested.</p> <p><a href="https://api.facebook.com/method/fql.query?query=select%20id%20from%20object_url%20where%20url=%22http://www.saschakimmel.com/2010/05/how-to-capture-clicks-on-the-facebook-like-button/%22" rel="noreferrer">https://api.facebook.com/method/fql.query?query=select%20id%20from%20object_url%20where%20url=%22http://www.saschakimmel.com/2010/05/how-to-capture-clicks-on-the-facebook-like-button/%22</a></p> <p><a href="https://api.facebook.com/method/fql.query?query=SELECT%20user_id%20FROM%20like%20WHERE%20object_id=%22393958018726%22" rel="noreferrer">https://api.facebook.com/method/fql.query?query=SELECT%20user_id%20FROM%20like%20WHERE%20object_id=%22393958018726%22</a></p> <p>We'd rather not have to get the users to authorize our app with Facebook, and give us permission to access their data, in order to make this work either.</p> <p>Any ideas? Thanks in advance!</p>
 

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