feat: added message sent signal to edx ace (#292)

* feat: added message sent signal to edx ace

edx_ace/__init__.py

@@ -13,7 +13,7 @@
 from .recipient import Recipient
 from .recipient_resolver import RecipientResolver
 
-__version__ = '1.10.1'
+__version__ = '1.11.0'
 
 
 __all__ = [

edx_ace/delivery.py

@@ -10,6 +10,7 @@
 from django.conf import settings
 
 from edx_ace.errors import RecoverableChannelDeliveryError
+from edx_ace.signals import ACE_MESSAGE_SENT
 from edx_ace.utils.date import get_current_time
 
 LOG = logging.getLogger(__name__)
@@ -60,8 +61,10 @@ def deliver(channel, rendered_message, message):
             message.report(f'{channel_type}_delivery_retried', num_seconds)
         else:
             message.report(f'{channel_type}_delivery_succeeded', True)
+            ACE_MESSAGE_SENT.send(sender=channel, message=message)
             return
 
     delivery_expired_report = f'{channel_type}_delivery_expired'
     logger.debug(delivery_expired_report)
     message.report(delivery_expired_report, get_current_time() - start_time)
+    ACE_MESSAGE_SENT.send(sender=channel, message=message)

edx_ace/signals.py

@@ -0,0 +1,7 @@
+"""
+Signals for the edx_ace app
+"""
+from django.dispatch import Signal
+
+# signal to indicate that a message has been sent using ace
+ACE_MESSAGE_SENT = Signal()