Startup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.EntityFrameworkCore;
using ASM.Models;

namespace ASM
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; set; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();
            services.AddDbContext<StoreDbContext>(
               opts =>
               {
                   opts.UseSqlServer
                   (Configuration["ConnectionStrings:PizzaASMString"]);
               }
               );
            services.AddScoped<IStoreReponsitory, EFStoreRepository>();
            services.AddRazorPages();
            services.AddDistributedMemoryCache();
            services.AddSession();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                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();
            }
            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseSession();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute("catpage",
                    "{category}/productPage{productPage:int}",
                    new { Controller = "Home", action = "Index" });

                endpoints.MapControllerRoute("page",
                    "productPage{productPage:int}",
                    new { Controller = "Home", action = "Index", productPage = 1 });
                endpoints.MapControllerRoute("pagination",
                    "Products/productPage{productPage:int}",
                    new { Controller = "Home", action = "Index", productPage = 1 });

                endpoints.MapDefaultControllerRoute();
                endpoints.MapRazorPages();
            });

            SeedData.EnsurePopulated(app);
        }
    }
}