I am trying to create the simplest possible Messenger app to test things out.
After reading the docs, I created a Serverless service which returns a single component on init and logs the event on submit.
Unfortunately, I get an Internal Server Error message when trying to add my app to the Messenger.
Here is a Github repository I created to show you where I am - and what I did wrong:
Any input on how to get started would be greatly appreciated!