dlski / python-mediator Goto Github PK

Hello, I'm testing your nice lib in project of my company, and, I have a question about the right way to use dependency injector with python-mediator, I'm currently implementing with below way:

app/shared/application/event_handler.py:

from abc import ABC, abstractmethod
from typing import Any


class EventHandler(ABC):
    @abstractmethod
    async def handle(self, event: Any):
        pass

And an example of event handler implementation:

And after this, I'm use a concrete impl for registry of class handlers:

My main question is to avoid a "Handler" class registering as static class, because I imagine that when this event is called twice at the same time, I might have inconsistencies (sharing resources between two executions of handlers, like an Sqlalchemy Unit Of Work), is there any way to mitigate this?

PS: I'm very beggining in world of event driven, async await, ddd, CQRS

Will be updated to python 3.11 ?