.NET Core NancyFx with IdentityServer4

Dockerfile

FROM microsoft/dotnet:1.1.1-sdk

COPY ./NancyAPI.csproj /app/
WORKDIR /app/
RUN dotnet restore
ADD ./ /app/

RUN dotnet publish -c Debug

EXPOSE 5000
ENTRYPOINT ["dotnet", "run"]

Module.cs

using Nancy;
using Nancy.Security;
using System;
using System.Linq;
using System.Security.Claims;

namespace NancyAPI.Module
{
    public class HomeModule : NancyModule
    {
        public HomeModule() : base("/")
        {

            this.RequiresAuthentication();

            Get("/", args => "Hello World. This is pretty cool!");
            Get("/test/{name}", args => new Person() { Name = args.name });
            Get("/claims", args =>
            {
                this.RequiresClaims(claim => claim.Type == "role" && claim.Value == "test1");
                return "Congratz, You have role test1";
            });
        }

        public class Person
        {
            public string Name { get; set; }
        }
    }
}

Program.cs

using System.IO;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;

namespace NancyAPI
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()
                .UseContentRoot(Directory.GetCurrentDirectory())
                .UseKestrel()
                .UseStartup<Startup>()
                .UseUrls("http://0.0.0.0:5009")
                .Build();

            host.Run();
        }
    }
}

Startup.cs

using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Nancy.Bootstrapper;
using Nancy.Owin;
using Nancy.TinyIoc;

namespace NancyAPI
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddWebEncoders();
        }

        public void Configure(IApplicationBuilder app)
        {

            app.UseIdentityServerAuthentication(new IdentityServerAuthenticationOptions
            {
                Authority = "https://identity.hauxi.is",
                RequireHttpsMetadata = true,

                ApiName = "nancyapi"
            });

            app.UseOwin(x => x.UseNancy());
        }
    }
}