aws_events_targets: Support AppSync GraphQL targets

[thelegendtubaguy]

Describe the feature

EventBridge now supports setting rule targets to an AppSync API:
https://aws.amazon.com/blogs/compute/build-real-time-applications-with-amazon-eventbridge-and-aws-appsync/

I would like to use CDK to configure my event bus rule to target an appsync api mutation.

Use Case

When using an event based architecture, it would be extremely beneficial to route events matching a pattern to any number of subscribed clients to a graphql api.

Proposed Solution

CloudFormation already has this capability, so potentially follow what you can do in CF.
https://serverlessland.com/patterns/eventbridge-to-appsync-sam

Other Information

Will also need the ability to set the input transformer and pass appsync parameters.

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.137.0

Environment details (OS name and version, etc.)

Typescript 5.4.5

[pahud]

Yeah, looks like we need to implement AppSync GraphQL target class for the aws-events-targets library. It should be very straightforward, we just need to create a new class which implements events.IRuleTarget and return relevant config in the bind() method. Check the EventBus target for your reference.

Are you interested to submit a PR to help us move this forward?

Please help us prioritize with 👍 .