Autofac singleton from factory method

Question

I'm pretty much looking for a port to Autofac that is implemented here with Castle Windsor. The IBus is an interface provided by EasyNetQ library and I'd like to register a factory that would instantiate the IBus instance as a singleton. BusBuilder.CreateMessageBus is the factory method. Example in Castle Windsor:

container.Register(
    Component.For<IBus>()
             .UsingFactoryMethod(BusBuilder.CreateMessageBus)
             .LifestyleSingleton()
    );

score 8 · Accepted Answer · answered Oct 07 '15 at 15:06

Try this

container.Register(c => BusBuilder.CreateMessageBus())
         .As<IBus>()
         .SingleInstance();

or

container.RegisterInstance(BusBuilder.CreateMessageBus())
         .As<IBus>();

The second solution will create the IBus instance during Autofac configuration whereas the second solution will create it the first time an IBus is resolved by Autofac

Autofac singleton from factory method

1 Answers1