title: Retrieve a post by id with RestFB API
body: <p>I'm using <a href="http://restfb.com/" rel="nofollow">http://restfb.com/</a></p>
  
  <p>I have the id of a post and i want to retrieve it, but i can't find how! I search on the documentation of the website and also on google but seems that no one has this problem.</p>
  
  <p>I tried with:</p>
  
  <pre><code>facebookClient.fetchObject(id, JsonObject.class);
  </code></pre>
  
  <p>but i get this error:</p>
  
  <pre><code>Can't retrive post: Received Facebook error response of type GraphMethodException: Unsupported get request.
  </code></pre>