Feature request: add support for working with AWS Websocket API Gateway

[gwlester]

Note from maintainers:

Note

We have an ongoing RFC related to this feature request

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Is your feature request related to a problem? Please describe.

Could some guidance on how to use Powertools to implement a Lambda for an AWS Websocket API Gateway route be provided.

Note -- this may require a new API Gateway class.

Describe the solution you'd like

Describe alternatives you've considered

Additional context

[heitorlessa]

hey @gwlester, thanks for creating this feature request. I'm moving this to our roadmap repo so we can consider it later.

At the moment, we mostly have customers using AppSync for real-time applications (web sockets+GraphQL+subscriptions+data conflict resolution etc) so we prioritized that first for the Event Handler. If anyone else reading this later would like support for API Gateway WSS, please react with a 👍

Thank you!