Azure Functions and AppInsights RequestTelemetry - .net-core

Question

I'm trying to enhance RequestTelemetry in AppInsights from HttpTrigger Azure Function v3.
Function is initialized with DI and Startup class.
[assembly: FunctionsStartup(typeof(Startup))]
namespace Hager.Example.FunctionApp.FunctionApp
{
public class Startup : FunctionsStartup
{
public override void Configure(IFunctionsHostBuilder builder)
{
// No service for repro
}
}
}
And my Function
public class Function1
{
private readonly ILogger _logger;
public Function1(ILogger<Function1> logger)
{
_logger = logger;
}
[FunctionName("HttpTriggered")]
public IActionResult Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestMessage req)
{
using var loggerScope = _logger.BeginScope("{InScope1}{InScope2}{InScope3}", Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid());
_logger.LogInformation("Started Execution");
_logger.LogWarning("With a custom property: {CustomProperty}.", Guid.NewGuid());
Activity.Current?.AddTag("TagStart", Guid.NewGuid());
if (Activity.Current == null)
{
// Always null
_logger.LogError("No ActivityCurrent {Activity}.", Activity.Current);
_logger.LogError("ActivityCurrent Tags {Activity}.", Activity.Current?.Tags);
}
// Activity.Current.AddTag("Tag2", Guid.NewGuid()); // <- NullException
_logger.LogInformation("Finished Execution");
return new NoContentResult();
}
}
My project packages:
<ItemGroup>
<PackageReference Include="Microsoft.ApplicationInsights" Version="2.17.0" />
<PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.17.0" />
<PackageReference Include="Microsoft.Azure.Functions.Extensions" Version="1.1.0" />
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.0.11" />
</ItemGroup>
Every logger and scopes are working as expected, but object ActivityTag is always null that shouldnt in Azure Functions.
Did I miss something?

Answer 1

Update:
Added Op's solution: by using request.HttpContext?.Features.Get<RequestTelemetry>(), it worked fine.
Please uninstall the 2 Application Insights packages: Microsoft.ApplicationInsights and Microsoft.ApplicationInsights.AspNetCore.
By default, Application Insights packages do not collect activity tags. So this should be the reason.
I tested your azure function without installing the above 2 Application Insights packages, it works well. Here is the screenshot of the test result:
Adding my local.settings.json here for your reference, the code is the same as yours:
{
"IsEncrypted": false,
"Values": {
"AzureWebJobsStorage": "xxxx",
"FUNCTIONS_WORKER_RUNTIME": "dotnet",
"APPINSIGHTS_INSTRUMENTATIONKEY": "xxx"
}
}
And if the 2 packages are necessary, maybe you can try add a custom ITelemetryInitializer by following this answer(btw, I didn't test it).