I would like to know how I can pull or get access to the options in a form, using REST APIs, these are the enums that are usually set in the form.
Those customizations are all just atomic documents interpolated together by the Customize Form tool. Take a look at the Custom Field and Property Setter doctypes. They can be polled like normal with the REST APIs.
Hi, luckily the question was answered in this forum:
Get doctype Metadata from Rest API - Developers - ERPNext Forum
Ah, yes. By your title, I thought you were just looking for the customizations. If you want all of the metadata, use the metadata API endpoint.