Using http2 using kestrel

startup.cs

public static IWebHostBuilder CreateWebHostBuilder(string[] args)
{
  return  WebHost.CreateDefaultBuilder(args)
    .ConfigureKestrel(options =>
    {
      options.Listen(IPAddress.Any, 8080, listenOptions =>
      {
        listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
        listenOptions.UseHttps("testcertificate.pfx", "donotusepassword");
       });
     })
     .UseStartup<Startup>();
 }