require_once 'Instagram.php';
/**
 * Configuration params, make sure to write exactly the ones
 * instagram provide you at http://instagr.am/developer/
 */
$config = array('client_id' => 'e8d6b06f7550461e897b45b02d84c23e', 'client_secret' => '2357fc69da344800acef2592ef647491', 'grant_type' => 'authorization_code', 'redirect_uri' => 'http://mauriciocuenca.com/qnktwit/');
/**
 * This is how a wrong response looks like
 * array(1) { ["InstagramOAuthToken"]=> string(89) "{"code": 400, "error_type": "OAuthException", "error_message": "No matching code found."}" }
 */
session_start();
if (isset($_SESSION['InstagramAccessToken']) && !empty($_SESSION['InstagramAccessToken'])) {
    header('Location: callback.php');
    die;
}
// Instantiate the API handler object
$instagram = new Instagram($config);
//Setup subscription
if (isset($rs[0]["access_token"])) {
    $instagram->setAccessToken($_SESSION['InstagramAccessToken']);
    if (isset($_GET['list'])) {
        $subscriptions = $instagram->listSubscriptions();
    } else {
        if (isset($_GET['delete'])) {
            $subscriptions = $instagram->deleteSubscription(array("object" => "all"));
        } else {
            $subscriptions = $instagram->createSubscription(array("object" => "tag", "object_id" => "mydowntown", "aspect" => "media", "callback_url" => $config['instagram']['redirect_uri'] . "subscriptions.php"));
        }
    }
    print_r($subscriptions);
}