getCallbackUrl() public method

public getCallbackUrl ( ) : string
return string
 /**
  * get access token of from service, has to be called after successful authorization
  *
  * @param string $code optional, if no code given method tries to get it out of $_GET
  */
 public function getAccessToken($code = null)
 {
     if (!$code) {
         if (!isset($_GET['code'])) {
             throw new Exception('could not retrieve code out of callback request and no code given');
         }
         $code = $_GET['code'];
     }
     $parameters = array('code' => $code, 'client_id' => $this->_client->getClientKey(), 'client_secret' => $this->_client->getClientSecret(), 'redirect_uri' => $this->_client->getCallbackUrl(), 'grant_type' => 'authorization_code');
     $http = new HttpClient($this->_configuration->getAccessTokenEndpoint(), 'POST', http_build_query($parameters));
     //$http->setDebug(true);
     $http->execute();
     $this->_parseAccessTokenResponse($http);
 }