Getting a single service from the registry

[trollfot]

Hello everyone.

I recently switched my web framework to using svcs to handle app-level services and request-level utilities.
In the patterns I'm using, the application can get addons that can add informations to existing services.

To illustrate, let's consider :

class MyStore(dict):
    pass

app_registry = Registry()
app_registry.register_value(MyStore, MyStore())

Each addons, get the registry as an argument and adds to the store. Currently, I end up doing :

def my_plugin(app_registry):
    store = app_registry.get_registered_service_for(MyStore).factory()
    store["whatever"] = 1

It works, of course. But it looks a bit awkward. First, when we get the RegisteredService, we don't know what kind of registration it is : value, factory (or a lazy_factory, if it ever is adopted). In my add ons, I need to make sure it's an app-level singleton i'm getting. I found out that the RegisteredService contain no info about the type.

I'm guessing this is not an uncommon usecase. How do you guys deal with it ?
Could it be that i'm expecting a kind of behavior that would fall under the need of using "scopes" as dishka, aioinject or rodi do ?
Or should I just be content with my current implementation ?

thanks