.NET Runtime Events API

runtime-events.cs

internal sealed class SimpleEventListener : EventListener
  {
      // Called whenever an EventSource is created.
      protected override void OnEventSourceCreated(EventSource eventSource)
      {
          // Watch for the .NET runtime EventSource and enable all of its events.
          if (eventSource.Name.Equals("Microsoft-Windows-DotNETRuntime"))
          {
                  EnableEvents(eventSource, EventLevel.Verbose, (EventKeywords)(-1));
          }
      }

      // Called whenever an event is written.
      protected override void OnEventWritten(EventWrittenEventArgs eventData)
      {
          // Write the contents of the event to the console.
          Console.WriteLine($"ThreadID = {eventData.OSThreadId} ID = {eventData.EventId} Name = {eventData.EventName}");
          for (int i = 0; i < eventData.Payload.Count; i++)
          {
              string payloadString = eventData.Payload[i] != null ? eventData.Payload[i].ToString() : string.Empty;
              Console.WriteLine($"\tName = \"{eventData.PayloadNames[i]}\" Value = \"{payloadString}\"");
          }
          Console.WriteLine("\n");
      }
  }

MS announce the release of .NET Core 2.2. It includes diagnostic improvements to the runtime, with Runtime Events, My question is How to use EventListener in .net core 2.2, the article is poor.

How to use it on .NET Core2.2 Web API.
The article is very poor.