node-card-capture/test.js

launches a child process in python to read from the magtek reader directly and returns the raw track data

var cardCapture       = require('./node-card-capture').cardCapture
var cardCaptureSync   = require('./node-card-capture').cardCaptureSync

// Synchronous call aka Stops everything until it's done
var trackdata = cardCaptureSync()
console.log(trackdata)

// Asynchronous call aka will return when done and is non blocking
cardCapture(function(trackdata){
    console.log(trackdata)
})