Merge pull request #13 from unoplatform/dev/jela/async-flush

feat: Add async flush method

Author: jeromelaban

src/Uno.DevTools.Telemetry/Telemetry.cs

@@ -123,6 +123,19 @@ public void Flush()
             }
         }
 
+        public async Task FlushAsync(CancellationToken ct)
+        {
+            if (!Enabled || _trackEventTask == null)
+            {
+                return;
+            }
+
+            if (!_trackEventTask.IsCompleted)
+            {
+                await Task.WhenAny(_trackEventTask, Task.Delay(-1, ct));
+            }
+        }
+
         public void Dispose()
         {
             _persistenceChannel?.Dispose();
@@ -162,7 +175,11 @@ private void InitializeTelemetry()
                 _commonProperties = new TelemetryCommonProperties(_settingsStorageDirectoryPath, _versionAssembly, _currentDirectoryProvider).GetTelemetryCommonProperties();
                 _commonMeasurements = new Dictionary<string, double>();
 
-                _telemetryConfig = new TelemetryConfiguration { InstrumentationKey = _instrumentationKey };
+                _telemetryConfig = new TelemetryConfiguration {
+                    InstrumentationKey = _instrumentationKey,
+                    TelemetryChannel = _persistenceChannel
+                };
+
                 _client = new TelemetryClient(_telemetryConfig);
                 _client.InstrumentationKey = _instrumentationKey;
                 _client.Context.User.Id = _commonProperties[TelemetryCommonProperties.MachineId];