public void Configure()

in UnicornStore/Startup.cs [113:196]
54 lines of code
4 McCabe index (conditional complexity)

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            //This is invoked when ASPNETCORE_ENVIRONMENT is 'Development' or is not defined
            //The allowed values are Development,Staging and Production
            if (env.IsDevelopment())
            {
                // StatusCode pages to gracefully handle status codes 400-599.
                app.UseStatusCodePagesWithRedirects("~/Home/StatusCodePage");

                // Display custom error page in production when error occurs
                // During development use the ErrorPage middleware to display error information in the browser
                app.UseDeveloperExceptionPage();

                app.UseDatabaseErrorPage();
            }

            //This is invoked when ASPNETCORE_ENVIRONMENT is 'Production' or 'Staging'
            if (env.IsProduction() || env.IsStaging())
            {
                // StatusCode pages to gracefully handle status codes 400-599.
                app.UseStatusCodePagesWithRedirects("~/Home/StatusCodePage");

                app.UseExceptionHandler("/Home/Error");
            }

            app.UseHealthChecks("/health", new HealthCheckOptions()
            {
                Predicate = _ => true,
                ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
            });

            app.UseHealthChecks("/liveness", new HealthCheckOptions
            {
                Predicate = r => r.Name.Contains("self")
            });

            // force the en-US culture, so that the app behaves the same even on machines with different default culture
            var supportedCultures = new[] { new CultureInfo("en-US") };

            app.UseRequestLocalization(new RequestLocalizationOptions
            {
                DefaultRequestCulture = new RequestCulture("en-US"),
                SupportedCultures = supportedCultures,
                SupportedUICultures = supportedCultures
            });

            app.Use((context, next) =>
            {
                context.Response.Headers["Arch"] = RuntimeInformation.ProcessArchitecture.ToString();
                return next();
            });

            // Configure Session.
            app.UseSession();

            // Add static files to the request pipeline
            app.UseStaticFiles();

            // Add the endpoint routing matcher middleware to the request pipeline
            app.UseRouting();

            // Add cookie-based authentication to the request pipeline
            app.UseAuthentication();

            // Add the authorization middleware to the request pipeline
            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
                endpoints.MapAreaControllerRoute(
                    "admin",
                    "admin",
                    "Admin/{controller=Home}/{action=Index}/{id?}");

                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");

                endpoints.MapControllerRoute(
                    name: "api",
                    pattern: "{controller=Home}/{id?}");
            });
        }