Use of proxy in dot net core

dotnetcore_proxy.cs

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

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            MainAsync().Wait();
            Console.WriteLine("Hello World!");
        }

        static async Task MainAsync()
        {

            string page = "http://en.wikipedia.org/";
            HttpClientHandler httpClientHandler = new HttpClientHandler()
            {
                UseDefaultCredentials = true,
                UseProxy = true,
                Proxy = new MyHttpProxy()
            };


            // ... Use HttpClient.
            using (HttpClient client = new HttpClient(httpClientHandler))
            using (HttpResponseMessage response = await client.GetAsync(page))
            using (HttpContent content = response.Content)
            {
                // ... Read the string.
                string result = await content.ReadAsStringAsync();

                // ... Display the result.
                if (result != null &&
                    result.Length >= 50)
                {
                    Console.WriteLine(result.Substring(0, 50) + "...");
                }
            }
        }
    }

    public class MyHttpProxy : IWebProxy
    {
        public MyHttpProxy()
        {
            //here you can load it from your custom config settings 
            this.ProxyUri = new Uri("http://127.0.0.1:8888");
        }

        public Uri ProxyUri { get; set; }

        public ICredentials Credentials { get; set; }

        public Uri GetProxy(Uri destination)
        {
            return this.ProxyUri;
        }

        public bool IsBypassed(Uri host)
        {
            //you can proxy all requests or implement bypass urls based on config settings
            return false;

        }
    }
}