I'm not new to JS or EAM concepts, but very new to EF. I'm tasked with adding a custom button to a screen that will call an API to get values, update fields on the screen, and then trigger a click event to save the record with the new values.
I'm trying to find helpful resources to learn 1) how to add the custom button, 2) methods available to use in the JS code, and 3) how to call an API (either direct or via ION API Gateway).
Can anyone point me in the right direction(s) to get this started?
Cheers!