Spring boot Autowired annotation equivalent for .net core mvc

Question

Question mentions it all.

In spring boot I am able to use the AutoWired annotation to automagically inject a dependency into my controller.

class SomeController extends Controller {
    @AutoWired
    private SomeDependency someDependency;
}

For asp.net-core-mvc I am curious as to if it has this annotation, currently the way to do it is by adding it as an argument to the constructor

[Route("api/[controller]")]
public class SomeController : Controller
{
    private SomeContext _someContext;

    public SomeController(SomeContext someContext)
    {
        _someContext = someContext;
    }
}

Answer 1

There is no annotation.

You just need to make sure you register the dependency with the DI container at the composition root which is usually Startup.ConfigureServices

public void ConfigureServices(IServiceCollection services) {

    //...

    services.AddScoped<SomeContext>();

    //...
}

If in your case SomeContext is a DbContext derived class then register it as such

var connection = @"some connection string";
services.AddDbContext<SomeContext>(options => options.UseSqlServer(connection));

When resolving the controller the framework will resolve known explicit dependencies and inject them.

Reference Dependency Injection in ASP.NET Core

Reference Dependency injection into controllers

Answer 2

You can use NAutowired,the field injection