Startup.cs

using DutchThreat.Data;
using DutchThreat.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using System.Reflection;
using DutchThreat.Data.Entities;
using Microsoft.AspNetCore.Identity;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using Microsoft.Extensions.Configuration;

namespace DutchThreat
{
    public class Startup
    {
        private readonly IConfiguration _config;

        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940

        public Startup(IConfiguration config)
        {
            _config = config;
        }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddIdentity<StoreUser, IdentityRole>(cfg => {

                cfg.User.RequireUniqueEmail = true;
                
            }).AddEntityFrameworkStores<DutchContext>();

            services.AddAuthentication()
                .AddCookie()
                .AddJwtBearer(cfg => {
                    cfg.TokenValidationParameters = new TokenValidationParameters()
                    {
                        ValidIssuer = _config["Tokens:Issuer"],
                        ValidAudience = _config["Tokens:Audience"],
                        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_config["Tokens:Key"]))
                    };
                });

            services.AddDbContext<DutchContext>();

            services.AddTransient<DutchSeeder>();

            services.AddAutoMapper(Assembly.GetExecutingAssembly());

            services.AddScoped<IDutchRepository, DutchRepository>();

            services.AddTransient<IMailService, NullMailService>();

            services.AddMvc();

            services.AddControllersWithViews()
                .AddRazorRuntimeCompilation()
                .AddNewtonsoftJson(cfg => cfg.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore );

            services.AddRazorPages();
        }

        // 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");
            }

            //app.UseDefaultFiles(); // If we use that code, the index.html shown on directly.
            app.UseStaticFiles();  // istek geldiginde static file'i acma icin kullandik. 


            app.UseRouting();
            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(cfg => {
                cfg.MapRazorPages();

                cfg.MapControllerRoute("Default",
                    "/{controller}/{action}/{id?}",
                    new { controller = "App", action = "Index" });
            });

            
        }
    }
}