Instantiating lazysingleton with different class factories.

[casvanluijtelaar]

I have a Service that can be instantiated 2 different ways, by using two factories. however this class gets instantiated I need it to be a lazysingleton.

if I register a singleton like this:

locator.registerLazySingleton<Service>(() => Service());

then how to I instantiate it with a factory constructor later?

Service service = Service.fromJson(data);

needs to be instantiated somewhere in here, to get the singleton reference later on.

GetIt locator = GetIt.instance;
Service service = locator<Service>();

[escamoteur]

If you register it as LazySingleton, you can't access it as factory. You can pass a parameter to your factories, so you could register it as factory and pass data as parameter. Check the readme on factories with paramters.

[casvanluijtelaar]

right but I need the state of that class to persist until I call the reset function?

[escamoteur]

I think then factory isn't the right thing. why not using the laszy singleton an do the fromJson in its factory function?

locator.registerLazySingleton<Service>(() => Service.fromJson(data));

[casvanluijtelaar]

because I did not think of that 😅 . I got into the habit of declaring all lazysingletons and factories in main. But you're absolutely right this makes sense. Keep up the good work!