Example of middleware in Startup class

Startup.cs

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();

            app.UseApplicationInsightsRequestTelemetry();

            if (env.IsDevelopment())
            {
                app.UseBrowserLink(); //Middleware
                app.UseDeveloperExceptionPage(); //Middleware
                app.UseDatabaseErrorPage(); //Middleware
            }
            else
            {
                app.UseExceptionHandler("/Home/Error"); //Middleware

                try
                {
                    using (var serviceScope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>()
                        .CreateScope())
                    {
                        serviceScope.ServiceProvider.GetService<ApplicationDbContext>()
                             .Database.Migrate();
                    }
                }
                catch { }
            }

            app.UseIISPlatformHandler(options => options.AuthenticationDescriptions.Clear()); //Middleware

            app.UseApplicationInsightsExceptionTelemetry(); //Middleware

            app.UseStaticFiles(); //Middleware

            app.UseIdentity(); //Middleware

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            }); //Middleware
        }