Asp.Net Core WebApi Telemetry only works when key specified in config

[Adebeer]

Hi

When specifying AI key purely via code, I'm having trouble getting my Stateless Asp.Net Core 2.1 Service fabric application to send telemetry to AI.

Specifically, when I enter the AI key in appsettings.json file, everything works as expected - I can see HTTP request with all dependency tracking in place for API->Remoting Service -> SQL Server

If however, I remove the instrumentation key (from all projects) - everything BUT the HTTP/webapi telemetry shows up. It also doesn't show up in the AI Live Metrics page.

Here's what I've tried:

• In first line of Program.cs - set:
  TelemetryConfiguration.Active.InstrumentationKey = key;
• As per docs, I've added the following:

.AddSingleton<ITelemetryInitializer>(serviceProvider =>
         FabricTelemetryInitializerExtension.CreateFabricTelemetryInitializer(aspNetCoreServiceContext))
.AddSingleton<ITelemetryModule>(serviceProvider =>
                {
                    var module =  new ServiceRemotingRequestTrackingTelemetryModule();
                    module.Initialize(TelemetryConfiguration.Active); // even tried this to make sure it's initialized
                    return module;

                })
                .AddSingleton<ITelemetryModule>(serviceProvider =>
                {
                    var module =  new ServiceRemotingDependencyTrackingTelemetryModule();
                    module.Initialize(TelemetryConfiguration.Active); // even tried this to make sure it's initialized
                    return module;
                });

• I've also tried explicitly adding HttpDependenciesParsingTelemetryInitializer and OperationCorrelationTelemetryInitializer and registering those as ITelemetryInitializer

What am I missing? The reason I want the key set via config is because this SF app has multiple environments and I would like to use multiple AI keys (and no key for Local dev clusters)

Interestingly - the Remoting call does have Operation info of the originating web api call (e.g. "POST Login/Post"). Hence, as far as I can tell, there is no telemetry being sent for the Web API's http/requests

Any help would be greatly appreciated

[Adebeer]

Unfortunately it seems the situation is even worse than I thought.
So I updated all the configuration files to point to a new AI instance in azure - but no telemetry got sent to it...
until I used VS studio to reconfigure all AI keys - and it seem to update these settings in the csproj files with the new AI keys:

<ApplicationInsightsResourceId></ApplicationInsightsResourceId>
<ApplicationInsightsAnnotationResourceId></ApplicationInsightsAnnotationResourceId>

Wow - does AI really not support configuration via code?? I'm hoping it's not as dire as it looks to me atm...

[yantang-msft]

AI's configuration scenario is different for each platform, e.g., console, AspNet, AspNet Core.
In your case, please refer this for configurations.
As far as I know, the configuration story for AspNet core is not as mature as AspNet. But it does support the IKey.

[Adebeer]

Thank you @yangg-msft - I haven't come across this resource before. I need to do a bit more tweaking to my code but it looks promising.