Startup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Spice.Data;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Spice.Utility;
using Stripe;
using Spice.Service;
using Microsoft.AspNetCore.Identity.UI.Services;

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

            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DefaultConnection")));

            services.AddIdentity<IdentityUser, IdentityRole>()
                .AddDefaultTokenProviders()
                .AddDefaultUI(UIFramework.Bootstrap4)
                .AddEntityFrameworkStores<ApplicationDbContext>();
            services.AddScoped<IDbinitializer, DbInitializer>();
            services.Configure<StripeSetting>(Configuration.GetSection("Stripe"));
            services.AddSingleton<IEmailSender, EmailSender>();
            services.Configure<EmailOptions>(Configuration);
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
            services.AddAuthentication().AddFacebook(facebookOptions =>
            {
                facebookOptions.AppId = "473989870110587";
                facebookOptions.AppSecret = "b8c7e97268d8fcfad58f2d12b27c7408";

            });
            services.AddAuthentication().AddGoogle(googleOptions =>
            {
                googleOptions.ClientId = "1842288579-dt9m6mmtvcpej3s5q8pe0hu6t19o6cvn.apps.googleusercontent.com";
                googleOptions.ClientSecret = "KP2U56Cp0PWru0T3OaFJzILK";

            });
            services.AddSession(options =>
            {
                options.Cookie.IsEssential = true;
                options.IdleTimeout = TimeSpan.FromMinutes(30);
                options.Cookie.HttpOnly = true;
            });

        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, IDbinitializer dbInitializer)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseDatabaseErrorPage();
            }
            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();
            }

            StripeConfiguration.SetApiKey(Configuration.GetSection("Stripe")["SecretKey"]);
            dbInitializer.Initialize();
            app.UseHttpsRedirection();
            app.UseStaticFiles();
            app.UseCookiePolicy();
            app.UseSession();
            app.UseAuthentication();

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