gggg

using System;
using System.Diagnostics;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Reflection;
using System.Security;
using System.Text;
using System.Threading.Tasks;

static class Program
{
    static HttpClientHandler CreateHttpClientHandler(bool useSocketsHttpHandler)
    {
        HttpClientHandler handler;

        if (useSocketsHttpHandler)
        {
            handler = new HttpClientHandler();
        }
        else
        {
            // Create platform specific handler.
            ConstructorInfo ctor = typeof(HttpClientHandler).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, null, new Type[] { typeof(bool) }, null);
            handler = (HttpClientHandler)ctor.Invoke(new object[] { useSocketsHttpHandler });
        }

        return handler;
    }

    static async Task Main()
    {
        AppContext.SetSwitch("System.Net.Http.UseSocketsHttpHandler", true);
        using (HttpClientHandler handler = new HttpClientHandler())
        using (var client = new HttpClient(handler))
        {
            handler.Credentials = new NetworkCredential(
                ActiveDirectoryUserName,
                ActiveDirectoryUserPassword);

            ServicePointManager.ServerCertificateValidationCallback +=
                (sender, cert, chain, sslPolicyErrors) => true;

            var request = new HttpRequestMessage();
            var server = DomainJoinedHttpHost;
            request.RequestUri = new Uri(server);

            // Force HTTP/1.1 since both CurlHandler and SocketsHttpHandler have problems with
            // HTTP/2.0 and Windows authentication (due to HTTP/2.0 -> HTTP/1.1 downgrade handling).
            // Issue #35195 (for SocketsHttpHandler).
            request.Version = new Version(1, 1); 

            Console.WriteLine(await client.GetStringAsync(new Uri(server)));
        }
    }

    public static string DomainJoinedHttpHost = "http://localhost:5000/";
    public static string ActiveDirectoryUserPassword = "5ty67ui8";
    public static string ActiveDirectoryUserName = "bogat";
    public static string ActiveDirectoryName = "WORKGROUP";
}