open-ngrok-url.js

const http = require('http')
const spawn = require('child_process').spawn

http.get('http://localhost:4040/api/tunnels', res => {
  let rawData = ''
  res.on('data', chunk => { rawData += chunk; })
  res.on('end', () => {
    JSON.parse(rawData).tunnels
      .filter(t => t.proto === 'https')
      .forEach(t => { spawn('open', [t.public_url]) })
  })
})