Signal handler configuration.

signal_handlers.py

from django.db.models.signals import post_save, post_delete
from django.dispatch import receiver

from models import SomeModel, AnotherModel

@receiver(post_save, sender=SomeModel)
@receiver(post_save, sender=AnotherModel)
def push_object_to_external_services(sender, instance, created, **kwargs):
    " Send updates to any bound external services. "
    # .... logic to get all of the services this object needs to get sent to ....
    for external_service in external_services:
        
        # Instantiate the ExternalService's Synchronizer
        synchronizer = external_service.get_synchronizer()

        # Set the `CRUD` option (either create or update)
        crud_option = created and 'create' or 'update'

        # Push the object to the external service via the service's synchronizer
        synchronizer.push_data(crud_option, instance)   

@receiver(post_delete, sender=SomeModel)
@receiver(post_save, sender=AnotherModel)
def remove_object_from_external_services(sender, instnace, **kwargs):
    " Remove object from the appropriate external services. "
    # .... logic to get all of the services this object needs to removed from ....
    for external_service in external_services:
        
        # Instantiate the ExternalService's Synchronizer
        synchronizer = external_service.get_synchronizer()
 
        # Set the `CRUD` option (either create or update)
        crud_option = 'remove'
 
        # Push the object to the external service via the service's synchronizer
        synchronizer.push_data(crud_option, instance)