gistfile1.txt

private function _getIblError($response) {
        try {
        $body = $response->getBody();
        if (!$body) {
            return "No body content";
        }
        $json = json_decode($body);
        if (!$json) {
            return "Unable to parse body content";
        }

        if (isset($json->error, $json->error->details)) {
            if (isset($json->error->id)) {
                return sprintf("[%s] %s", $json->error->id, $json->error->details);
            }
            return $json->error->details;
        }
        return "Unable to retrieve error details.";
        
        } catch (Exception $e) {
          $this->_throwError($e);
        }
        
    }