title: get post link by post id from facebook api
body: <p>I have a crawler that collect posts from public pages. Most of the time it's work fine, but some times it wan't get the correct Link to the post. For example, this post: <a href="https://www.facebook.com/StopBazan/posts/1133146853376672" rel="nofollow">https://www.facebook.com/StopBazan/posts/1133146853376672</a>,</p>
  
  <p><code>postID: 492380637453300_555826477898431</code>. </p>
  
  <p>I build the Link by it's PostID: if <code>PostID: xxxx_yyyy</code>, then the link is:<code>"...permalink.php?story_fbid=" + yyyy + "&amp;id=" + xxxx</code>.
  It's not working for this post. 
  Is thare is a way to get the Link from the postID by facebook api?</p>
  
  <p>May be it will help someone to answer my question: the problematic post was publish at the 'post to page' part (Visitor Posts) of the page, and it's say that "
  ‎עוצרים את הרחבת בז"ן‎ shared Elad Flusser's event."</p>