BlogSystem.Web.Startup.ConfigureServices C# (CSharp) Method

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHangfire(
                config => config.SetDataCompatibilityLevel(CompatibilityLevel.Version_170)
                    .UseSimpleAssemblyNameTypeSerializer().UseRecommendedSerializerSettings().UseSqlServerStorage(
                        this.configuration.GetConnectionString("DefaultConnection"),
                        new SqlServerStorageOptions
                        {
                            CommandBatchMaxTimeout = TimeSpan.FromMinutes(5),
                            SlidingInvisibilityTimeout = TimeSpan.FromMinutes(5),
                            QueuePollInterval = TimeSpan.Zero,
                            UseRecommendedIsolationLevel = true,
                            UsePageLocksOnDequeue = true,
                            DisableGlobalLocks = true,
                        }).UseConsole());
            if (this.env.IsProduction())
            {
                services.AddHangfireServer(options => options.WorkerCount = 2);
            }

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

            services.AddDefaultIdentity<ApplicationUser>(IdentityOptionsProvider.GetIdentityOptions)
                .AddRoles<ApplicationRole>().AddEntityFrameworkStores<ApplicationDbContext>();

            services.Configure<CookiePolicyOptions>(
                options =>
                    {
                        options.CheckConsentNeeded = context => true;
                        options.MinimumSameSitePolicy = SameSiteMode.None;
                    });

            services.AddDatabaseDeveloperPageExceptionFilter();
            services.AddControllersWithViews();
            services.AddRazorPages();

            services.AddSingleton(this.configuration);

            // Data repositories
            services.AddScoped(typeof(IDeletableEntityRepository<>), typeof(EfDeletableEntityRepository<>));
            services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));
            services.AddScoped<IDbQueryRunner, DbQueryRunner>();

            // Application services
            services.AddTransient<IBlogUrlGenerator, BlogUrlGenerator>();
            services.AddTransient<IEmailSender>(_ => new SendGridEmailSender(this.configuration["SendGrid:ApiKey"]));
            services.AddTransient<ILatestVideosProvider, LatestVideosProvider>();
            services.AddTransient<IYouTubeChannelVideosFetcher>(
                s => new YouTubeChannelVideosFetcher(this.configuration["YouTube:ApiKey"]));
        }