curl_setopt_array($curl, array(
CURLOPT_URL => "https://<domain>/<api prefix>/<version>/commerce/product/create/attribute/",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS =>"{\"name\":{\"en\":\"<name in english>\",\"de\":\"<name in german>\"},\"data_type\":\"<attribute data type>\",\"attribute_for\":\"<attribute for>\",\"widget\":\"<widget type>\",\"description\":{\"en\":\"<description in english>\",\"de\":\"<description in german>\"},\"is_unique\":\"<is unique value>\",\"is_required\":\"<is required>\",\"is_display\":\"<need to display>\",\"options\":[{\"status\":\"<attribute option status>\",\"label\":\"<attribute option label>\",\"value\":\"<attirbute option value>\",\"weight\":\"<attirbute option weight>\"},{\"status\":\"<attribute option status\",\"label\":\"<attribute option label>\",\"value\":\"<attirbute option value>\",\"weight\":\"<attirbute option weight>\"}]}",
CURLOPT_HTTPHEADER => array(
"Authorization: Bearer <access token>"
$response = curl_exec($curl);