Is there any guide on how to call Phalcon REST API from Ionic?
You are asking about phalcon or ionic? :)
I'm using Ionic as frontend and Phalcon as backend. I'm still trying to find how both of these to work together. Is there any guide or help?
Connection between those two frameworks is like every php backend and frontend framework. From Phalcon side you deliver data with REST api (https://docs.phalcon.io/4.0/en/tutorial-rest) to frontend in Ionic (sample: https://www.youtube.com/watch?v=3QPbBJgNF94) using JWT for example.