Um eigene Werte in Application Insights loggen zu können, muss ein eigener ITelemetryInitializer erzeugt werden.
Dieser dient nun dazu, dass der entsprechende Log-Kontext um Informationen angereichert werden können:
1 public class MyCustomTelemetryInitializer : ITelemetryInitializer
2 {
3 public void Initialize(ITelemetry telemetry)
4 {
5 if (telemetry is RequestTelemetry requestTelemetry) // wenn ich nur Request Telemtry erweitern möchte
6 {
7 requestTelemetry.Context.GlobalProperties.Add("MyLogField",
8 "MyLogValue");
9 }
10 }
11 }
Dieser muss anschließend noch registriert werden
1services.AddSingleton<ITelemetryInitializer, MyCustomTelemetryInitializer>();
Achtet bei der Implementierung darauf, dass der Wert als String gespeichert wird. Das bedeutet, dass entsprechend eine neutrale Lokalisierung verwendet werden sollte und auch Zeitstempel sich nach ISO8601 orientieren sollten!
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Author
BEN ABT
Ben is a Principal Software Engineer at Medialesson.de, with a strong focus on .NET and Microsoft Azure. In his professional role, he designs and builds highly scalable platforms for hybrid and cloud-based scenarios. He also advises companies and C-levels on migrating to the sovereign cloud.
He runs myCSharp.de, the largest and most active German-speaking C# community forum, actively contributes to both his own and external open-source projects and regularly shares his knowledge through his blog, at community events, conferences and as a writer for technical magazines.
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