Startup.cs

using System;
using System.IO;
using System.Reflection;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using PaymentService.Services;
using Steeltoe.CloudFoundry.Connector.Redis;
using Steeltoe.Extensions.Configuration.CloudFoundry;
using Steeltoe.Management.CloudFoundry;
using Swashbuckle.AspNetCore.Swagger;

namespace PaymentService
{
    public class Startup
    {
        public Startup(IConfiguration configuration, IHostingEnvironment env)
        {
            Configuration = configuration;
            Env = env;
        }

        public IHostingEnvironment Env {get; }
        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.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
            services.AddOptions();
            services.ConfigureCloudFoundryOptions(Configuration);
            services.AddSingleton<PaymentCalculator>();
            services.AddSingleton<CrashService>();

            if (Env.IsDevelopment())
            {
                services.AddSingleton<IHitCountService, MemoryHitCountService>();
            }
            else
            {
                services.AddRedisConnectionMultiplexer(Configuration);
                services.AddSingleton<IHitCountService, RedisHitCountService>();
            }

            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new Info { Title = "Payment Service API", Version = "v1" });

                // 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);
            });
            services.AddCloudFoundryActuators(Configuration);
        }

        // 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.UseCloudFoundryActuators();
            app.UseHttpsRedirection();
            app.UseSwagger();
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "Payment Service API V1");
                c.RoutePrefix = "SwaggerUI";
            });
            app.UseMvc();

            app.UseDefaultFiles();
            app.UseStaticFiles();
        }
    }
}