Update Program.cs and Startup.cs to match ASP.NET Core 2.1 templates.

src/CleanArchitecture.Web/Program.cs

-using Microsoft.AspNetCore.Hosting;
-using Microsoft.AspNetCore;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
 
 namespace CleanArchitecture.Web
 {
@@ -7,12 +7,11 @@ namespace CleanArchitecture.Web
     {
         public static void Main(string[] args)
         {
-            BuildWebHost(args).Run();
+            CreateWebHostBuilder(args).Build().Run();
         }
 
-        public static IWebHost BuildWebHost(string[] args) =>
+        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
             WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>()
-                .Build();
+                .UseStartup<Startup>();
     }
 }

src/CleanArchitecture.Web/Startup.cs

-using System;
-using CleanArchitecture.Core.Interfaces;
+using CleanArchitecture.Core.Interfaces;
 using CleanArchitecture.Core.SharedKernel;
 using CleanArchitecture.Infrastructure.Data;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using StructureMap;
 using Swashbuckle.AspNetCore.Swagger;
+using System;
 
 namespace CleanArchitecture.Web
 {
@@ -24,6 +26,12 @@ namespace CleanArchitecture.Web
 
         public IServiceProvider ConfigureServices(IServiceCollection services)
         {
+            services.Configure<CookiePolicyOptions>(options =>
+            {
+                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
+                options.CheckConsentNeeded = context => true;
+                options.MinimumSameSitePolicy = SameSiteMode.None;
+            });
             // TODO: Add DbContext and IOC
             string dbName = Guid.NewGuid().ToString();
             services.AddDbContext<AppDbContext>(options =>
@@ -31,7 +39,8 @@ namespace CleanArchitecture.Web
                 //options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
 
             services.AddMvc()
-                .AddControllersAsServices();
+                .AddControllersAsServices()
+                .SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
 
             services.AddSwaggerGen(c =>
             {
@@ -50,7 +59,7 @@ namespace CleanArchitecture.Web
                     _.WithDefaultConventions();
                     _.ConnectImplementationsToTypesClosing(typeof(IHandle<>));
                 });
-                
+
                 // TODO: Add Registry Classes to eliminate reference to Infrastructure
 
                 // TODO: Move to Infrastucture Registry
@@ -80,14 +89,17 @@ namespace CleanArchitecture.Web
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();
-                app.UseBrowserLink();
+                // app.UseBrowserLink(); // Must install the Microsoft.VisualStudio.Web.BrowserLink package manually for BrowserLink functionality in 2.1.
             }
             else
             {
                 app.UseExceptionHandler("/Home/Error");
+                app.UseHsts();
             }
 
+            app.UseHttpsRedirection();
             app.UseStaticFiles();
+            app.UseCookiePolicy();
 
             // Enable middleware to serve generated Swagger as a JSON endpoint.
             app.UseSwagger();