How to access to the rest api after building meteor app for ios

According to this doc I build a Rest API and it’s working on the web version.

My question is after I built the code for an ios app how can I access the Rest API I have developed in meteor.
Knowing the IP of my ios device in local network I tried but it seems the API is not accessible.

Best, Omid

The REST endpoint is on the server, not the client (ios) device.

Can you elaborate? Which server?
I have everything developed in a meteor app. I am using all the server functionality via meteor (e.g. store data in mongodb). I assume the server codes are always shipped next to client codes to the device.
It should be sort of exposing the api in ios problem. 'case it’s working on web version.