Hands-On Design Patterns with C# and .NET Core

IServiceProvider

With CatalogService defined, the team is finally able to put everything together in .NET Core. The start of all applications, that is, EXE programs, is the Main method, and .NET Core is no exception. The program is shown in the following code:

class Program{    private static void Main(string[] args)    {        IServiceCollection services = new ServiceCollection();        ConfigureServices(services);        IServiceProvider serviceProvider = services.BuildServiceProvider();        var service = serviceProvider.GetService<ICatalogService>();        service.Run();        Console.WriteLine("CatalogService has completed.");    }    private static void ConfigureServices(IServiceCollection services)    {        // Add application services. services.AddTransient<IUserInterface, ConsoleUserInterface>(); ...