Question

I need to get “page_tab_url” by fql query.
In this article: https://developers.facebook.com/docs/reference/fql/application/
they say, that I need “app access_token” but there is nothing that sticks to the topic on link destination.
Anybody have an idea, what is a name of permission, that I need to use in “scope”?

Answer 1

I think this is the correct link (for now) that they wanted to link. This is a way to get an access token that authenticate as your application with the appid and secret, you don’t need extended permission for that.

here’s a small php snippet to illustrate:

$appid = '';
$secret = '';

$url = 'https://graph.facebook.com/oauth/access_token';
$params = array(
    'client_id'     => $appid,
    'client_secret' => $secret,
    'grant_type'    => 'client_credentials',
);

$resp = file_get_contents($url.'?'.http_build_query($params));
$parsed_resp = array();
parse_str($resp, $parsed_resp);

$app_access_token = $parsed_resp['access_token'];
$resp = file_get_contents("https://graph.facebook.com/fql?q=select%20page_tab_url%20from%20application%20where%20app_id={$appid}&access_token={$app_access_token}");

var_dump(json_decode($resp, true));

with the $appid and $secret variables filled with real data, it produces this output:

array(1) {
  'data' =>
  array(1) {
    [0] =>
    array(1) {
      'page_tab_url' =>
      string(30) "http://.../"
    }
  }
}