You can register an instance of an object by calling .Register() with the object reference as the only parameter. That automatically generates a singleton dependency.
public interface IMyService {} public class MyService : IMyService {}
var repo = new ServiceRepository(); var myService = new MyService(); repo.Register(myService);
var provider = repo.CreateServiceProvider(); IMyService svc1 = provider.Get<IMyService>(); // svc1 = references same object as myService IMyService svc2 = provider.Get<IMyService>(); // svc1 = references same object as myService MyService svc3 = provider.Get<MyService>(); // svc3 = references same object as myService MyService svc4 = provider.Get<MyService>(); // svc4 = references same object as myService // svc1,svc2,svc3 and svc4 all reference the same object (myService)