asp.net-core Dependency Injection Register and manually resolve
Example
The preferred way of describing dependencies is by using constructor injection which follows Explicit Dependencies Principle:
ITestService.cs
public interface ITestService
{
int GenerateRandom();
}
TestService.cs
public class TestService : ITestService
{
public int GenerateRandom()
{
return 4;
}
}
Startup.cs (ConfigureServices)
public void ConfigureServices(IServiceCollection services)
{
// ...
services.AddTransient<ITestService, TestService>();
}
HomeController.cs
using Microsoft.Extensions.DependencyInjection;
namespace Core.Controllers
{
public class HomeController : Controller
{
public HomeController(ITestService service)
{
int rnd = service.GenerateRandom();
}
}
}
