Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.SpaServices.ReactDevelopmentServer;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using mIRC.Db;
using mIRC.Db.Entities;
using mIRC.Web.Hubs;

namespace mIRC.Web
{
    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.AddControllers();

            // In production, the React files will be served from this directory
            services.AddSpaStaticFiles(configuration => configuration.RootPath = "ClientApp/build");

            services.AddDbContextPool<mIRCDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

            services.AddIdentity<User, IdentityRole>(options => options.SignIn.RequireConfirmedAccount = true)
                .AddEntityFrameworkStores<mIRCDbContext>();

            services.AddAuthentication()
                //.AddMicrosoftAccount(microsoftOptions =>
                //{
                //    microsoftOptions.ClientId = Configuration["Authentication:Microsoft:ClientId"];
                //    microsoftOptions.ClientSecret = Configuration["Authentication:Microsoft:ClientSecret"];
                //})
                .AddGoogle(googleOptions =>
                {
                    googleOptions.ClientId = Configuration["Authentication:Google:ClientId"];
                    googleOptions.ClientSecret = Configuration["Authentication:Google:ClientSecret"];
                });

            // live chat support
            services.AddSignalR();

        }

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

            app.UseRouting();

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

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

            app.UseSpa(spa =>
            {
                spa.Options.SourcePath = "ClientApp";

                if (env.IsDevelopment())
                {
                    spa.UseReactDevelopmentServer(npmScript: "start");
                }
            });
        }
    }
}