SNS notifications on stack events

❓ General Issue

I am playing around with different ways to hook into lifecycle events of Stacks / Components. Of course there is the AwsCustomResource or ProviderFramework way. While AwsCustomResource is only viable for a simple SDK calls, ProviderFramework offers a lot more but with more complexity involved.

Now i noticed notificationArns on Stack level. What i recall you can attach them via command line on deployment (not what i am looking for) or programatically via NestedStack Construct. I wonder why this requirement is in place? Why cant we add them on our main stacks? (i think you can only read them)

This way one could easily setup a topic and a consumer and one should be able to hook into those lifecycle events pretty easily.

proposed idea

Why not having a method like this on Stack construct:

let myStack = new MyStack(app,...);
myStack.addNotificationArns(...);

Not sure why this method is not available in the construct when at the end it will synth to AWS::CloudFormation::Stack

[domfie]

AFAIK: Currently only possible through the cli: cdk deploy stackID --notification-arns='arn:aws:sns:{region}:{aws-id}:{sns-name}' (Replace the placeholders with your values)

On subsequent calls the arn can be omitted.

[logemann]

Thats why it would make up a good feature Request. Think should be part of the AWS CDK.