Issue while AddApplicationInsightsTelemetry along with KeyedInstances in IServiceCollection

[mavsankar]

• List of NuGet packages and version that you are using: 2.22.0
• Runtime version: net8.0
• Hosting environment: Any

Describe the bug

When there are KeyedSingleton Registrations to IServiceCollection, the method AddApplicationInsightsTelemetry doesn't work if it is called after calling services.AddKeyedSingleton method.

More Info:

This is happening because here, the code is checking only for ImplementationType and ImplementationInstance.

Instead, I think it should also check for KeyedImplementationType & KeyedImplementationInstance

To Reproduce

Simply run this web application to reproduce the issue. Please note the below two lines in the program.cs

https://github.com/mavsankar/AppInsightsSdk-KeyedInstance-Repro

Workaround

Always use the AddApplicationInsightsTelemetry method before registering any keyed instances

We will close this issue if:

• The repro project you share with us is complex. We can't investigate custom projects, so don't point us to such, please.
• If we will not be able to repro the behavior you're reporting

For Immediate Support

For immediate support relating to the Application Insights .NET SDK we encourage you to file an Azure Support Request with Microsoft Azure instead of filing a GitHub Issue in this repository.
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[mavsankar]

Any update on this?