public DistributionService(IHubContext <CheckpointsHub> checkpointsHub, IMessageHub messageHub, StorageService storageService)
{
this.checkpointsHub = checkpointsHub;
this.storageService = storageService;
disposable = new CompositeDisposable(
messageHub.SubscribeDisposable <Checkpoint>(OnCheckpoint),
messageHub.SubscribeDisposable <ReaderStatus>(OnReaderStatus),
messageHub.SubscribeDisposable <RfidOptions>(OnRfidOptions));
}