BWPM/App/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 System.IO;
using Microsoft.AspNetCore.Identity;
using APP.Identity;
using APP.Models;
using APP.Utils;
using APP.Helper;
using Microsoft.AspNetCore.Authentication.Cookies;
using BWPMModels;

namespace APP
{
    public class Startup
    {
        [Obsolete]
        //public Startup(IConfiguration configuration)
        public Startup(Microsoft.AspNetCore.Hosting.IHostingEnvironment evm)
        {
            //Configuration = configuration;
            var builder = new ConfigurationBuilder()
             .SetBasePath(evm.ContentRootPath)
             .AddJsonFile("appsettings.json", true, true)
             .AddJsonFile($"appsettings.{evm.EnvironmentName}.json", true)
             .AddEnvironmentVariables();

            Configuration = builder.Build();

            AppSettings.Instance.SetConfiguration(Configuration);
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {

            services.AddRazorPages();
            services.AddIdentity<AppUser, AppRole>().AddDefaultTokenProviders();
            services.Configure<IdentityOptions>(options =>
            {
                // Password settings.
                options.Password.RequireDigit = true;
                options.Password.RequireLowercase = false;
                options.Password.RequireNonAlphanumeric = true;
                options.Password.RequireUppercase = false;
                options.Password.RequiredLength = 8;

                // Lockout settings.
                options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(30);
                options.Lockout.MaxFailedAccessAttempts = 5;
                options.Lockout.AllowedForNewUsers = true;

                // User settings.
                options.User.AllowedUserNameCharacters =
                "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._@+";
                options.User.RequireUniqueEmail = true;
            });

            services.ConfigureApplicationCookie(options =>
            {
                // Cookie settings
                options.Cookie.HttpOnly = true;
                options.ExpireTimeSpan = TimeSpan.FromMinutes(90);
                options.LoginPath = "/";
                options.AccessDeniedPath = "/404";
                options.SlidingExpiration = true;
                // options.Events = new MyCookieAuthenticationEvents();

            });

            services.AddTransient<IUserStore<AppUser>, UserStoreAppService>();
            services.AddTransient<IRoleStore<AppRole>, RoleAppService>();
            services.AddScoped<IPasswordHasher<AppUser>, PasswordHasherOverride<AppUser>>();
           // services.AddScoped<IAccountDAL, AccountDAL>();
          // services.AddScoped<IDbHelper, DbHelper>();
            services.AddScoped<IUserClaimsPrincipalFactory<AppUser>, CustomClaimsPrincipal>();
            services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme).AddCookie();

            //services.AddControllersWithViews();
            services.AddDistributedMemoryCache(); //This way ASP.NET Core will use a Memory Cache to store session variables
            services.AddSession(options =>
            {
                options.IdleTimeout = TimeSpan.FromDays(1); // It depends on user requirements.
                options.Cookie.Name = ".My.Session"; // Give a cookie name for session which will be visible in request payloads.
            });

            //services.ConfigureApplicationCookie(options =>
            //{
            //    options.LoginPath = $"/account/login";
            //    options.LogoutPath = $"/account/logout";
            //    options.AccessDeniedPath = $"/account/accessDenied";
            //});

            //services.AddRazorPages();
            //services.AddIdentity<AppUser, AppRole>().AddDefaultTokenProviders();
            //services.Configure<IdentityOptions>(options =>
            //{
            //    // Password settings.
            //    options.Password.RequireDigit = true;
            //    options.Password.RequireLowercase = false;
            //    options.Password.RequireNonAlphanumeric = true;
            //    options.Password.RequireUppercase = false;
            //    options.Password.RequiredLength = 8;

            //    // Lockout settings.
            //    options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(30);
            //    options.Lockout.MaxFailedAccessAttempts = 5;
            //    options.Lockout.AllowedForNewUsers = true;

            //    // User settings.
            //    options.User.AllowedUserNameCharacters =
            //    "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._@+";
            //    options.User.RequireUniqueEmail = true;
            //});

            //services.ConfigureApplicationCookie(options =>
            //{
            //    // Cookie settings
            //    options.Cookie.HttpOnly = true;
            //    options.ExpireTimeSpan = TimeSpan.FromMinutes(90);
            //    options.LoginPath = "/";
            //    options.AccessDeniedPath = "/404";
            //    options.SlidingExpiration = true;
            //    // options.Events = new MyCookieAuthenticationEvents();

            //});

            //services.AddTransient<IUserStore<AppUser>, UserStoreAppService>();
            //services.AddTransient<IRoleStore<AppRole>, RoleAppService>();
            //services.AddScoped<IPasswordHasher<AppUser>, PasswordHasherOverride<AppUser>>();
            //services.AddScoped<IAccountDAL, AccountDAL>();
            //services.AddScoped<IDbHelper, DbHelper>();
            //services.AddScoped<IUserClaimsPrincipalFactory<AppUser>, CustomClaimsPrincipal>();
            //services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme).AddCookie();
        }

        // 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("/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.UseSession();
            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthentication();

            app.UseAuthorization();

            //app.UseEndpoints(endpoints =>
            //{
            //    endpoints.MapControllerRoute(
            //    name: "default",
            //    pattern: "{controller=Employee}/{action=Login}/{id?}");
            //});

            //app.UseSession();
            //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.UseAuthorization();

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






			if (Directory.Exists(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules",@"@syncfusion")))
            {
                if (!Directory.Exists(Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"js", @"ej2")))
                {
                    Directory.CreateDirectory(Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"js", @"ej2"));
                    File.Copy(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules", @"@syncfusion", @"ej2-js-es5", @"scripts", @"ej2.min.js"), Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"js", @"ej2", @"ej2.min.js"));
                }

                if (!Directory.Exists(Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2")))
                {
                    Directory.CreateDirectory(Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2"));
                    File.Copy(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules", @"@syncfusion", @"ej2-js-es5", @"styles", @"bootstrap.css"), Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2", @"bootstrap.css"));
                    File.Copy(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules", @"@syncfusion", @"ej2-js-es5", @"styles", @"bootstrap4.css"), Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2", @"bootstrap4.css"));
                    File.Copy(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules", @"@syncfusion", @"ej2-js-es5", @"styles", @"material.css"), Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2", @"material.css"));
                    File.Copy(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules", @"@syncfusion", @"ej2-js-es5", @"styles", @"highcontrast.css"), Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2", @"highcontrast.css"));
                    File.Copy(Path.Combine(Directory.GetCurrentDirectory(), @"node_modules", @"@syncfusion", @"ej2-js-es5", @"styles", @"fabric.css"), Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", @"css", @"ej2", @"fabric.css"));
                }
            }
        }
    }
}