How do you implement DI in ASP.NET Core MVC?

ASP.NET Core MVC has built-in support for Dependency Injection.

• Register services in Startup.cs within ConfigureServices method using

IServiceCollection:

public void ConfigureServices(IServiceCollection services)
{

services.AddControllersWithViews();

services.AddScoped<IProductService, ProductService>(); //

Example

}

• Inject dependencies via constructor injection in controllers or services:

public class HomeController : Controller
{
private readonly IProductService _productService;
public HomeController(IProductService productService)
{
_productService = productService;
}
public IActionResult Index()
{
var products = _productService.GetAll();
return View(products);
}
}

The framework resolves and injects dependencies automatically.