Migrated to .NET 6. Considered .NET Core 3.1. but it goes End of Support in December).

Author: soyfrien

Program.cs

@@ -6,6 +6,7 @@
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 
 namespace pipelines_dotnet_core
@@ -14,11 +15,15 @@ public class Program
     {
         public static void Main(string[] args)
         {
-            CreateWebHostBuilder(args).Build().Run();
+            CreateHostBuilder(args).Build().Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-            WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>();
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(builder =>
+                {
+                    builder.UseStartup<Startup>();
+                });
+                
     }
 }

Startup.cs

@@ -1,14 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.HttpsPolicy;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace pipelines_dotnet_core
 {
@@ -24,41 +19,43 @@ public Startup(IConfiguration configuration)
         // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
-            services.Configure<CookiePolicyOptions>(options =>
-            {
+            _ = 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;
-            });
+                  options.MinimumSameSitePolicy = SameSiteMode.None;
+              });
 
 
-            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
+            services.AddRazorPages();
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
-            if (env.IsDevelopment())
-            {
-                app.UseDeveloperExceptionPage();
-            }
-            else
+            if (!env.IsDevelopment())
             {
                 app.UseExceptionHandler("/Home/Error");
                 // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                 app.UseHsts();
             }
+            else
+            {
+                app.UseDeveloperExceptionPage();
+            }
 
             app.UseHttpsRedirection();
             app.UseStaticFiles();
             app.UseCookiePolicy();
 
-            app.UseMvc(routes =>
+            app.UseRouting();
+
+            app.UseEndpoints(endpoints =>
             {
-                routes.MapRoute(
+                endpoints.MapControllerRoute(
                     name: "default",
-                    template: "{controller=Home}/{action=Index}/{id?}");
+                    pattern: "{controller=Home}/{action=Index}/{id?}");
             });
         }
     }
-}
+}

pipelines-dotnet-core.csproj

@@ -1,15 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
     <RootNamespace>pipelines_dotnet_core</RootNamespace>
   </PropertyGroup>
-
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
-  </ItemGroup>
-
-</Project>
+</Project>