$client = new GuzzleHttpClient();
try {
  $request = new GuzzleHttpPsr7Request('PUT', config('cms.api.backend') .'/products/'. $nid,
    [
      'auth' => [config('cms.api.user'), config('cms.api.password')],
      'form_params' => [
        'copywrite' => Input::get('copywrite'),
        'status' => $status
      ],
  ]);
  $promise = $client->sendAsync($request)->then(function ($response) {});
  $promise->wait();
}
catch (RequestException $e) {
  $this->logHttpError($e->getResponse()->getStatusCode(), $e->getResponse()->getBody(true));
}