node.js - How to use Node in a Swift iOS app that uses Firebase as a backend? -

i building swift ios application using firebase backend service. far, i've been ok using cocoapods implement dependencies. i've reached point need start integrating other services (like elastic search) requires node in application, particularly when comes using them firebase.

i'm bit lost on how use node in swift ios app, if i'm using firebase primary backend.

i'm curious whether has elegant solution this?

edit: should setting websocket firebase , node can communicate? if so, i'm still left question on how setup node work swift app.