public FullStockTickerService(IFullStockPriceSubscriberFactory subscriberFactory, ILogger <FullStockTickerService> logger)
 {
     _subscriberFactory = subscriberFactory;
     _logger            = logger;
 }
 public FullStockTickerService(IFullStockPriceSubscriberFactory subscriberFactory, ILogger <FullStockTickerService> logger)
 {
     _subscriberFactory = subscriberFactory;
     _logger            = logger;
     _cts = new CancellationTokenSource();
 }