Thanks so much for this helpful tutorial! It could get through it, but unfortunately not without issues.
There were two things that should be updated in the tutorial, so that others can easily get through it:
When adding an API-Gateway trigger, it is now required to choose an "API Type , which can be either “HTTP” or “REST”. To follow along the tutorial, one needs to choose “REST”.
The micronaut version of the function needs to be named “pirate-translator” not “app”. If it’s called “app” it does not run when replacing the old .jar with the new micronaut version of the function.