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    copied!<p>Probably you figured this out by now - however I spend quite some time to figure out a solution for this so others might find this useful:</p> <ul> <li>Get an access token: <code>https://graph.facebook.com/oauth/access_token?type=client_cred&amp;client_id=&lt;app_id&gt;&amp;client_secret=&lt;app_secret&gt;</code></li> <li>Now with the right FQL query the rest is simple: <code>https://graph.facebook.com/fql?q=select%20post_id,%20time,%20text%20from%20comment%20where%20xid=&lt;xid&gt;&amp;access_token=&lt;access_token&gt;</code> (<code>select time, text from comment where xid=&lt;xid&gt;</code>).</li> </ul> <p>Obviously you can customize the FQL query to return any parameter from the <a href="http://developers.facebook.com/docs/reference/fql/comment/" rel="nofollow">comments table</a>.</p> <p>An (actually not so minor) detail: Facebook will return only the comments which belong to your application even without an explicit <code>app_id</code> parameter. So just in case your xids are something 1, 2, 3, you don't need to worry. In fact in my tests <strong>Facebook would return no entries if the app_id was specified!</strong> (even if it was the same I used to retrieve the access token)</p> <p>As others have mentioned as well it seems not to be possible to get all comments for an app (regardless of xid or url). The <a href="https://developers.facebook.com/docs/reference/fql/comments_info/" rel="nofollow">comments_info</a> table which is sometimes referenced in posts seems to be completely empty nowadays.</p>
 

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