depedency resolver dynamic asp net core

  public class DependencyResolver
    {
        /// <summary>
        /// Applies the configuration.
        /// </summary>
        /// <param name="services">The services.</param>
        /// <param name="configuration">The configuration.</param>
        public static void ApplyConfig(IServiceCollection services, IConfiguration configuration)
        {
            services.AddSingleton<IAppSettingsProvider>(provider => new AppSettingsProvider(configuration));
            services.AddTransient<IInvoiceInfoRepository, InvoiceInfoRepository>();
            services.AddTransient<IInvoiceStatusRepository, InvoiceStatusRepository>();

            services.AddTransient<IInvoiceService, InvoiceService>();
            services.AddTransient<IInvoiceUnitOfWork, InvoiceUnitOfWork>();
            services.AddTransient<ITibcoRepository, TibcoRepository>();
            services.AddTransient<IRequestUnitOfWork, RequestUnitOfWork>();
        }
    }

 public class AppSettingsProvider : IAppSettingsProvider
    {
        private readonly IConfiguration configuration;

        /// <summary>
        /// Initializes a new instance of the <see cref="AppSettingsProvider"/> class.
        /// </summary>
        /// <param name="configuration">The configuration.</param>
        public AppSettingsProvider(IConfiguration configuration)
        {
            this.configuration = configuration;
        }

        public string PostgresConnectionString => this.configuration[AppSettingsConstants.DbConnectionString];

        public string TibcoUrl => this.configuration[AppSettingsConstants.TibcoUrl];
    }