Application Insights and Asp.Net core Configuration - asp.net

Question

I keep reading about the importance of configuring ApplicationInsights to reduce unwanted traffic and other things.
How do I do that in an Asp.Net Core application? There doesn't seem to be an applicationinsights.config XML file anymore.
I can see a ConnectService.json file in the Application Insights folder, but there isn't much in it?
How do I configure AI for an Asp.Net Core application?
Anyone have links to docs? I can't seem to find any...
TIA

Answer 1

All of this is now in code, and mostly documented on the application insights asp.net core github wiki.
for example, see https://github.com/Microsoft/ApplicationInsights-aspnetcore/wiki/Dependency-Tracking-and-Performance-Counter-Collection where it has
Disabling Telemetry Module Services
In order to disable the services,
you need to manually remove the modules from the existing list of
services in the method ConfigureServices. Please note that telemetry
modules should be removed only after adding Application Insights to
the services.
// Removing dependency tracking telemetry module - to disable default dependency tracking
var dependencyTrackingService = services.FirstOrDefault<ServiceDescriptor>(t => t.ImplementationType == typeof(DependencyTrackingTelemetryModule));
if (dependencyTrackingService!= null)
{
services.Remove(dependencyTrackingService);
}
// Removing performance collector module - to disable default performance counter collection
var performanceCounterService = services.FirstOrDefault<ServiceDescriptor>(t => t.ImplementationType> == typeof(PerformanceCollectorModule));
if (performanceCounterService != null)
{
services.Remove(performanceCounterService);
}