implement feedback loop

dotnet/AipsRT/Services/ErrorSubscriberBackgroundService.cs

@@ -0,0 +1,25 @@
+using AipsCore.Application.Abstract;
+using AipsCore.Application.Abstract.MessageBroking;
+using AipsCore.Application.Common.Message.ErrorMessage;
+
+namespace AipsRT.Services;
+
+public class ErrorSubscriberBackgroundService : BackgroundService
+{
+    private readonly IMessageSubscriber _subscriber;
+    private readonly IDispatcher _dispatcher;
+
+    public ErrorSubscriberBackgroundService(IMessageSubscriber subscriber, IDispatcher dispatcher)
+    {
+        _subscriber = subscriber;
+        _dispatcher = dispatcher;
+    }
+    
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        await _subscriber.SubscribeAsync<ErrorMessage>(async (errorMessage, ct) =>
+        {
+            await _dispatcher.Execute(errorMessage, ct);
+        });
+    }
+}