public DemoSubscription(IFeedbackEventService feedbackEventService)
        {
            _feedbackEventService = feedbackEventService;

            Name = "Subscription";
            AddField(new EventStreamFieldType
            {
                Name       = "feedbackEvent",
                Type       = typeof(FeedbackEventType),
                Resolver   = new FuncFieldResolver <FeedbackEvent>(ResolveEvent),
                Subscriber = new EventStreamResolver <FeedbackEvent>(Subscribe)
            });
        }
 public FeedbackService(IFeedbackRepository repo, IFeedbackEventService feedbackEventService)
 {
     _repo         = repo;
     _eventService = feedbackEventService;
 }