ASP.NET Core

For ASP.NET Core, once you reference the Elastic.Apm.NetCoreAll package, you can enable auto instrumentation by calling the AddAllElasticApm() extension method on the IServiceCollection in the Program.cs file.

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddAllElasticApm();

var app = builder.Build();

// Configure the HTTP request pipeline.

app.Run();

With this you enable every agent component including ASP.NET Core tracing, monitoring of outgoing HTTP request, Entity Framework Core database tracing, etc.

In case you only reference the Elastic.Apm.AspNetCore package, you won’t find the AddAllElasticApm. Instead you need to use the AddElasticApmForAspNetCore() method. This method turns on ASP.NET Core tracing, and gives you the opportunity to manually turn on other components. By default it will only trace ASP.NET Core requests - No HTTP request tracing, database call tracing or any other tracing component will be turned on.

In case you would like to turn on specific tracing components you can pass those to the AddElasticApm method.

For example:

builder.Services.AddElasticApm(
	new HttpDiagnosticsSubscriber(),  /* Enable tracing of outgoing HTTP requests */
	new EfCoreDiagnosticsSubscriber()); /* Enable tracing of database calls through EF Core*/

In case you only want to use the Public API, you don’t need to do any initialization, you can simply start using the API and the agent will send the data to the APM Server.