I’ve released my first Node.js package on NPM, called simple-geocoder. It’s a very simple API that allows easy use of the ArcGIS Online Geocode service in your Node apps. Just do an npm install simple-geocoder in your project folder, then an example usage would be:

var geocoder = require('simple-geocoder');
geocoder.geocode('1600 Pennsylvania Ave NW, Washington, DC 20500', function(success, locations) {
    if(success) {
        console.log("Location: ", locations.x, locations.y);

Github Repo

Npm Entry

See Also