aws-events: Enable schema discovery for Event Bus

[iRoachie]

Describe the feature

The current EventBus construct doesn't allow enabling schema discovery.

Use Case

Need to enable schema discovery for an event bus without using L1 constructs.

Proposed Solution

This behaviour is supported in Cloudformation through AWS::EventSchemas::Discoverer.

This should be easily implemented on the EventBus.

e.g

const eventBus = new EventBus(this, 'poll-events', {
  schemaDiscovery: true
});

or to enable tagging we can do:

const eventBus = new EventBus(this, 'poll-events')

const discoverer = eventBus.addDiscoverer()

cdk.Tags.of(discoverer).add('my-tag', 'yup')

Other Information

No response

Acknowledgements

• [X] I may be able to implement this feature request

CDK version used

2.88.0

Environment details (OS name and version, etc.)

Mac OS 13.4.1

[pahud]

Sounds like we'll need to create a new L2 for AWS::EventSchemas::Discoverer or just create CfnDiscoverer L1 in EventBus L2?

[iRoachie]

I'm thinking the latter