/// <summary>Registers the type mappings with the Unity container.</summary>
        /// <param name="services"></param>
        /// <param name="configuration"></param>
        /// <param name="container">The unity container to configure.</param>
        /// <remarks>There is no need to register concrete types such as controllers or API controllers (unless you want to
        /// change the defaults), as Unity allows resolving a concrete type even if it was not previously registered.</remarks>
        public static void AddNakedObjects(this IServiceCollection services, IConfiguration configuration)
        {
            // NOTE: To load from web.config uncomment the line below. Make sure to add a Microsoft.Practices.Unity.Configuration to the using statements.
            // container.LoadConfiguration();
            //Standard configuration

            ParallelConfig.RegisterStandardFacetFactories(services);
            ParallelConfig.RegisterCoreSingletonTypes(services);
            ParallelConfig.RegisterCoreScopedTypes(services);


            // config
            services.AddSingleton <IReflectorConfiguration>(p => NakedObjectsRunSettings.ReflectorConfig());

            services.AddSingleton <IFunctionalReflectorConfiguration>(p => NakedObjectsRunSettings.FunctionalReflectorConfig());

            services.AddSingleton <IEntityObjectStoreConfiguration>(p => NakedObjectsRunSettings.EntityObjectStoreConfig(configuration));

            // frameworkFacade
            services.AddTransient <IOidTranslator, OidTranslatorSlashSeparatedTypeAndIds>();

            services.AddTransient <IOidStrategy, EntityOidStrategy>();
            services.AddTransient <IStringHasher, InvariantStringHasher>();
            services.AddTransient <IFrameworkFacade, FrameworkFacade>();

            //Externals
            services.AddScoped <IPrincipal>(p => p.GetService <IHttpContextAccessor>().HttpContext.User);
        }