Add support for HTTP API

[theburningmonk]

This is a Feature Proposal

For feature proposals:

HTTP API now supports Step Functions, will be good to add support for that.

[ffxsam]

Seconded!

[dara-rockwell]

Ouch. Still not supported?

[ffxsam]

@horike37 Any plans for this?

[franc-liuzzi]

Not supported yet?? Definitely need it! @horike37 any plans?

[weronika-malinowska-deltatre]

Workaround for this using CloudFormation: https://forum.serverless.com/t/implementing-newly-launched-synchronous-workflows-for-step-functions/13642/5?u=jimmy

[jonasduever]

Workaround for this using CloudFormation

The workaround works, thanks! But of course it's a lot of code compared to "native" httpApi support.