Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Swashbuckle.AspNetCore.Swagger;
using System;
using System.IO;
using System.Reflection;
using TypedHttpClientFactory.Services;

namespace TypedHttpClientFactory
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHttpClient<ITypedHttpClientService, TypedHttpClientService>();
            services.AddTransient<ILocalExchangeRatesService, LocalExchangeRateService>();
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

            // Register the Swagger generator
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new Info
                {
                    Version = "v1",
                    Title = "Local Exchange Rates API",
                    Description = "A basic .Net Core microservice with a REST API that calls and recieves JSON data from another API, deserializes it to be able to modify it, and returns the modified response to your REST API's consumer from a Docker container.",
                    Contact = new Contact
                    {
                        Name = "Robert Ogden",
                        Email = "ogg130@gmail.com",
                        Url = "https://linkedin.com/???"
                    }
                }); 

                // Set the comments path for the Swagger JSON and UI.
                var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
                var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
                c.IncludeXmlComments(xmlPath);
            });
        }

        // 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();
            }
            else
            {
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc();

            // Enable middleware to serve generated Swagger as a JSON endpoint.
            app.UseSwagger();

            // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.), 
            // specifying the Swagger JSON endpoint.
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
                c.RoutePrefix = string.Empty;
            });
        }
    }
}