Activities via EventPipe

ConsoleApp.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net6.0</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.Diagnostics.NETCore.Client" Version="0.2.217401" />
    <PackageReference Include="Microsoft.Diagnostics.Tracing.TraceEvent" Version="2.0.66" />
  </ItemGroup>
  
</Project>

Program.cs

using Microsoft.Diagnostics.NETCore.Client;
using System.Diagnostics.Tracing;
using System.Collections.Generic;
using Microsoft.Diagnostics.Tracing;
using System;
using System.Collections;

const long DiagnosticSourceKeywords_Messages = 0x1;
const long DiagnosticSourceKeywords_Events = 0x2;

//const string DiagnosticFilterString = "\"" +
//  "Microsoft.AspNetCore/Microsoft.AspNetCore.Hosting.HttpRequestIn.Start@Activity1Start:-" +
//    "Request.Scheme" +
//    ";Request.Host" +
//    ";Request.PathBase" +
//    ";Request.QueryString" +
//    ";Request.Path" +
//    ";Request.Method" +
//    ";ActivityStartTime=*Activity.StartTimeUtc.Ticks" +
//    ";ActivityParentId=*Activity.ParentId" +
//    ";ActivityId=*Activity.Id" +
//    ";ActivitySpanId=*Activity.SpanId" +
//    ";ActivityTraceId=*Activity.TraceId" +
//    ";ActivityParentSpanId=*Activity.ParentSpanId" +
//    ";ActivityIdFormat=*Activity.IdFormat" +
//  "\r\n" +
//"Microsoft.AspNetCore/Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop@Activity1Stop:-" +
//    "Response.StatusCode" +
//    ";ActivityDuration=*Activity.Duration.Ticks" +
//    ";ActivityId=*Activity.Id" +
//"\r\n" +
//"HttpHandlerDiagnosticListener/System.Net.Http.HttpRequestOut@Event:-" +
//"\r\n" +
//"HttpHandlerDiagnosticListener/System.Net.Http.HttpRequestOut.Start@Activity2Start:-" +
//    "Request.RequestUri" +
//    ";Request.Method" +
//    ";Request.RequestUri.Host" +
//    ";Request.RequestUri.Port" +
//    ";ActivityStartTime=*Activity.StartTimeUtc.Ticks" +
//    ";ActivityId=*Activity.Id" +
//    ";ActivitySpanId=*Activity.SpanId" +
//    ";ActivityTraceId=*Activity.TraceId" +
//    ";ActivityParentSpanId=*Activity.ParentSpanId" +
//    ";ActivityIdFormat=*Activity.IdFormat" +
//    ";ActivityId=*Activity.Id" +
// "\r\n" +
//"HttpHandlerDiagnosticListener/System.Net.Http.HttpRequestOut.Stop@Activity2Stop:-" +
//    ";ActivityDuration=*Activity.Duration.Ticks" +
//    ";ActivityId=*Activity.Id" +
//"\r\n" +

//"\"";

const string DiagnosticFilterString = "Microsoft.AspNetCore/Microsoft.AspNetCore.Hosting.HttpRequestIn.Start@Activity1Start:-TraceIdentifier;Request.Method;Request.Host;Request.Path;Request.QueryString\r\n" +
                                    "Microsoft.AspNetCore/Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop@Activity1Stop:-TraceIdentifier;Response.StatusCode";

const int pid = 32128;

var provider = new EventPipeProvider(
        name: "Microsoft-Diagnostics-DiagnosticSource",
        eventLevel: EventLevel.Verbose,
        keywords: DiagnosticSourceKeywords_Messages |
                  DiagnosticSourceKeywords_Events,
        arguments: new Dictionary<string, string> {
            {
                "FilterAndPayloadSpecs", DiagnosticFilterString
            }
        }
    );

var reader = new DiagnosticsClient(pid);
var session = reader.StartEventPipeSession(provider, requestRundown: false);
using var source = new EventPipeEventSource(session.EventStream);
source.Dynamic.All += (eventData) =>
{
    Console.WriteLine($"Provider = {eventData.ProviderName} ID = {eventData.ID} Name = {eventData.EventName}");
    for (var i = 0; i < eventData.PayloadNames.Length; i++)
    {
        if (eventData.PayloadNames[i] == "Arguments")
        {
            Console.WriteLine($"\t{eventData.PayloadNames[i]}:");
            foreach (var value in (IEnumerable)eventData.PayloadValue(i))
            {
                Console.WriteLine($"\t\t{value}");
            }
        }
        else
        {
            Console.WriteLine($"\t{eventData.PayloadNames[i]}: {eventData.PayloadValue(i)}");
        }

    }
};
Console.CancelKeyPress += delegate (object sender, ConsoleCancelEventArgs e)
{
    session.Dispose();
    e.Cancel = true;
};
source.Process();