JSON RPC documentation or example app request

Would it be possible to add to the documentation or as an example app something like:

using MediatR;
using Microsoft.Extensions.Hosting;
using OmniSharp.Extensions.JsonRpc;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static Task Main(string[] args) =>
            new HostBuilder()
                .ConfigureServices((context, services) =>
                    services.AddJsonRpcServer(options =>
                        options
                            .WithInput(Console.OpenStandardInput())
                            .WithOutput(Console.OpenStandardOutput())
                            .WithHandler<PingHandler>()))
                .Build()
                .RunAsync();

        class PingHandler : IJsonRpcRequestHandler<PingHandler.PingRequest, PingHandler.PongResponse>
        {
            [Method("ping", Direction.ClientToServer)]
            public Task<PongResponse> Handle(PingRequest request, CancellationToken cancellationToken)
            {
                return Task.FromResult(new PongResponse
                {
                    pong = request.ping + 1
                });
            }

            public class PongResponse
            {
                public int pong;
            }

            public class PingRequest : IRequest<PongResponse>
            {
                public int ping;
            }
        }
    }
}

It requres the nuget packages:

Microsoft.Extensions.Hosting
OmniSharp.Extensions.JsonRpc

When run, it should be able to read from the terminal something like:

{ "jsonrpc":"2.0", "id":2, "method": "ping", "params": { "ping": 41 }}

and throw out a { pong: 42} response.

It currently doesn't work, it never creates the json rpc service really, I will be checking now the source code of the tests, but if there was a minimal working example app, it'd get me going much faster, it'd probably help with the adoption of this tool as well.

Start by reading the existing JSON-RPC tests and compare them with the supplied host setup using Microsoft.Extensions.Hosting and OmniSharp.Extensions.JsonRpc. Verify the terminal request and response flow, then document or package a minimal working example that produces the expected pong response.