Get and Post - REST - using ABL Procedure

I need to make a program calling a REST URL, post some data and take the response to save in a temp-table, but it's my first time working with this.

The REST URL using the ARC (Advanced Rest Client - Add-on of Google Chrome), is OK , but someone can pass me some example or explain how to do this using an ABL Procedure? I'm looking for this in the Community and on the Progress Documentation in 3 days, without success.