Hotswap + AppSync: Support for Hotswapping AppSync Resolvers and Functions with Code instead of VTL templates

[alharris-at]

Describe the feature

In 2022, AppSync launched support for Code-based resolvers, initially supporting Javascript runtimes. https://docs.aws.amazon.com/appsync/latest/devguide/resolver-reference-overview-js.html. It looks like Code-based resolvers don't work with Hotswap, which we'd like to enable for easier iteration by customers.

Use Case

I'd love to have a more fluid iteration experience while working on the business logic for my AppSync APIs.

• https://github.com/aws/aws-cdk/issues/24111
• https://github.com/aws/aws-cdk/issues/24112
• https://github.com/aws/aws-cdk/issues/24113

Proposed Solution

Add 'RUNTIME' and 'CODE' to hotswap capable parameters for AppSync Resolvers and Functions.

Draft PR (which hardcodes the runtime while I was testing) is here https://github.com/aws/aws-cdk/commit/fa43af180174a56f52c04acbd8ca3e2da83dd93a though we'll need to figure out why it complains about the 'runtime' input being invalid, and add tests.

Other Information

No response

Acknowledgements

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

CDK version used

2.64.0

Environment details (OS name and version, etc.)

osx 13.2

[HenrikFricke]

I'd love to see that feature 🙏