/**
* Exchange the refresh token for access token
* @param string $refresh_token
* @return Array $response
*/
function refreshAccessToken($refresh_token)
{
$uri = $this->oauth . "/token/";
$options = array('client_id' => $this->api_key, 'client_secret' => $this->api_secret, 'grant_type' => 'refresh_token', 'refresh_token' => $refresh_token);
$response = $refresh_token ? $this->conn->request($uri, $options, "POST") : null;
return $response;
}
/**
* Upload file from url
* @param $url
* @param array $options
*/
function url($url, $options = array())
{
$uri = $this->endpoint . "/upload";
$options['image'] = $url;
return $this->conn->request($uri, $options, "POST");
}
