Registering event types for event grid messages...

metaregistergridevent.py

class AiEventMeta(type):

    def __init__(cls, name, bases, nmspc):
        super().__init__(name, bases, nmspc)
        if not hasattr(cls, 'event_type_registry'):
            setattr(cls, 'event_type_registry', {})
        if hasattr(cls, 'EVENT_TYPE_NAME'):
            cls.event_type_registry[cls.EVENT_TYPE_NAME] = cls

class AiEvent(metaclass=AiEventMeta):
    
    def __init__(self, data):
        self.data = data

    @classmethod
    def from_json(cls, data):
        schema_name = data['type']
        if not schema_name in cls.event_type_registry:
            return None
        return cls.event_type_registry[schema_name](data)

class StorageBlobCreatedAiEvent(AiEvent):

    EVENT_TYPE_NAME = 'azure.storage.blobCreated'

class StorageBlobDeletedAiEvent(AiEvent):

    EVENT_TYPE_NAME = 'azure.storage.blobDeleted'


event = AiEvent.from_json({
    'type': 'azure.storage.blobCreated'
})

print(event.EVENT_TYPE_NAME)