private function executePostRequest($str_action, $obj_request_body = null) { $arr_options = []; if (null !== $obj_request_body) { $arr_options['json'] = $obj_request_body; } $obj_response = $this->httpClient()->post($this->actionUrl($str_action), $arr_options); $this->obj_last_response = json_decode((string) $obj_response->getBody()); }