ApplicationInsights dependency tracking not working

[allanlw]

Since I upgraded to the new runtime, dependency tracking is not working. It would seem that it is necessary to manually enable this (not documented).

Is there a recommended way to configure Application Insights and/or an example?

[fabiocav]

@allanlw indeed, this would require some manual wire up at the moment.

Tagging @brettsam so we can discuss how we can automate this to remove that friction.

[asparrowhawk]

Tried using DependencyTrackingTelemetryModule to add application insights into a .NET 5.0 function app. However I got a number of these messages in application insights logs:

AI (Internal): [Microsoft-ApplicationInsights-Extensibility-DependencyCollector] HttpCoreDiagnosticSourceListener OnNext failed to call event handler. Error details 'System.InvalidCastException: [A]ActivityStartData cannot be cast to [B]ActivityStartData. Type A originates from 'System.Net.Http, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' in the context 'Default' at location 'C:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App\5.0.4\System.Net.Http.dll'. Type B originates from 'Grpc.Net.Client, Version=2.0.0.0, Culture=neutral, PublicKeyToken=d754f35622e28bad' in the context 'Default' at location 'C:\home\site\wwwroot\Grpc.Net.Client.dll'.
   at Microsoft.ApplicationInsights.Common.PropertyFetcher.PropertyFetch.TypedFetchProperty`2.Fetch(Object obj)
   at Microsoft.ApplicationInsights.Common.PropertyFetcher.Fetch(Object obj)
   at Microsoft.ApplicationInsights.DependencyCollector.Implementation.HttpCoreDiagnosticSourceListener.OnNext(KeyValuePair`2 evnt)'

None of the http or table storage dependency events that I was hoping to see appeared in the logs.

The only dependency event type was:

http://127.0.0.1:51170/AzureFunctionsRpcMessages.FunctionRpc/EventStream

See Setup automatic dependency tracking in Console Apps for details.

[roend83]

Using the Microsoft.ApplicationInsights.WorkerService package works for getting dependencies logged, but the telemetry isn't associated with the function execution. Is there an easy way to bridge that gap?

[brettsam]

This is now supported with the ApplicationInsights package: #944