How to communicate client(iOS/Android) with Nodejs server

I'm newbie in Colyseus. I wanna develop mafia moderator game with Node.js and iOS/Android

My question is:
How to communicate client(iOS/Android) with Nodejs server

I'd check out the examples first. Have you decided which platform you want to use for client development?

Client libs and example projects are linked from here:

https://docs.colyseus.io/client/client/

@mobyjames document is not fully clarified particular client(android/iOS) . colyseus-defold client for android/iOS. i wanna to good example for this