IdentityServer4 as a SAML SP using ComponentSpace - Startup class

Startup.cs

using IdentityServer4;
using IdentityServer4.Models;
using IdentityServer4.Services;
using IdentityServer4.Stores;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using System;

namespace TestIdentityServer4
{
    public class Startup
    {
        private readonly IConfiguration _config;

        public Startup(IConfiguration config)
        {
            _config = config;
        }

        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc();

            services.AddIdentityServer()
                .AddDeveloperSigningCredential()
                .AddInMemoryIdentityResources(Config.GetIdentityResources())
                .AddInMemoryApiResources(Config.GetApiResources())
                .AddInMemoryClients(Config.GetClients())
                .AddTestUsers(Config.GetUsers());

            // Add SAML SSO services.
            services.AddSaml(_config.GetSection("SAML"));

            services.AddAuthentication()
                .AddSaml(options =>
                {
                    options.SignInScheme = IdentityServerConstants.ExternalCookieAuthenticationScheme;
                    options.PartnerName = () => _config["PartnerName"];
                });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseIdentityServer();

            app.UseStaticFiles();
            app.UseMvcWithDefaultRoute();
        }
    }
}