add cancel

konviva-events/app/events/cancel.py

@@ -0,0 +1,30 @@
+from aws_lambda_powertools import Logger
+from aws_lambda_powertools.utilities.data_classes import (
+    EventBridgeEvent,
+    event_source,
+)
+from aws_lambda_powertools.utilities.typing import LambdaContext
+from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
+
+import konviva
+from boto3clients import dynamodb_client
+from config import ENROLLMENT_TABLE
+
+logger = Logger(__name__)
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+
+
+@event_source(data_class=EventBridgeEvent)
+@logger.inject_lambda_context
+def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
+    new_image = event.detail['new_image']
+    data = enrollment_layer.get_item(KeyPair(new_image['id'], 'konviva'))
+
+    try:
+        result = konviva.cancel_enrollment(data['enrollment_id'])
+    except Exception as exc:
+        logger.exception(exc)
+        return False
+    else:
+        logger.info('Enrollment canceled', result=result)
+        return True