/**
  * @param Request $request
  * @param MessagingResource $resource
  * @return string
  * @throws \App\Exceptions\InvalidMessageException
  * @internal param $slotId
  * @internal param $pipe
  */
 public function store(Request $request, MessagingResource $resource)
 {
     $value = $request->get('value');
     $resource->addMessage($value);
     return response($resource->peekMessage(), 201)->header("Content-Type", "text/json");
 }