title: C# retrieve user feeds from facebook by application
body: <p>I have created a Facebook application and I'm trying to use it to get the public post of one customer of mine from his wall (he has a personal Facebook account). </p>
  
  <p>The application should work in background so I'm not able to use the user access token.</p>
  
  <p>I'm using the facebook library <a href="http://facebooksdk.net/" rel="nofollow noreferrer">Facebook</a>.</p>
  
  <p>I got my app access token via </p>
  
  <pre><code>fb.Get("oauth/access_token", new
              {
                  client_id = MY_CLIENT_ID,
                  client_secret = MY_CLIENT_SECRET,
                  grant_type = "client_credentials"
              });
  </code></pre>
  
  <p>After I got MY_APP_TOKEN, I have tried to get data via this apis, but they both return an empty array.</p>
  
  <pre><code>https://graph.facebook.com/USER_ID?fields=feed&amp;access_token=MY_APP_TOKEN
  https://graph.facebook.com/USER_ID/posts/?access_token=MY_APP_TOKE
  </code></pre>
  
  <p>When I try (the second one) with Sony I'm able to retrieve post from their pages. Is there some way to get public post of user wall?</p>