testWechat.js

const WechatyBuilder = require('wechaty').WechatyBuilder

const wechaty = WechatyBuilder.build() // get a Wechaty instance
wechaty
  .on('scan', (qrcode, status) => console.log(`Scan QR Code to login: ${status}\nhttps://wechaty.js.org/qrcode/${encodeURIComponent(qrcode)}`))
  .on('login',            user => console.log(`User ${user} logged in`))
  .on('message',       message => console.log(`Message: ${message}`))
wechaty.start()