gistfile1.txt

using System;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace webrasher
{
	class MainClass
	{
		public static void Main(string[] args)
		{
			var server = Server ();
			System.Threading.Thread.Sleep (1000);
			var client = Task.Run (Client);

			server.Wait ();
			client.Wait ();
		}

		public static async Task Server ()
		{
			var server = new System.Net.HttpListener ();
			server.Prefixes.Add ("http://*:12345/");
			server.Start ();
			while (true) {
				var context = await server.GetContextAsync ();
				Console.WriteLine (new StreamReader (context.Request.InputStream).ReadToEnd ());
				using (context.Response) {
					new StreamWriter (context.Response.OutputStream).Write ("Hello World");
				}
			}
		}

		public static void Client ()
		{
			for (int i = 0; i < 100; i ++) {
				var client = WebRequest.CreateHttp ("http://127.0.0.1:12345/");
				client.Method = "POST";
				using (var request = client.GetRequestStream ())
					request.Write (Encoding.UTF8.GetBytes ("Hello"), 0, "Hello".Length);
				var asyncResult = client.BeginGetResponse (null, null);
				client.Abort ();
				try {
					var finalResult = client.EndGetResponse (asyncResult);
				} catch (WebException) {
					// Good!
				} catch (ObjectDisposedException) {

				}
			}
		}
	}
}