This guide is outdated - visit the 'Welcome to Adafruit IO' guide for the most recent overview of Adafruit IO: https://learn.adafruit.com/welcome-to-adafruit-io
To use Adafruit IO with a Node.js program you can install and use the Adafruit io-client-node code from Github. This library can use both the REST API and MQTT API to access feeds and data on Adafruit IO.
The library readme shown on GitHub describes how to install and use the library.
