JS to JSON

js-to-json.js

#!/usr/bin/env node
import fs from 'fs'
import path from 'path'

const args = process.argv.slice(2)
const input = args[0]
const objectPath = args[1]

if (!input) {
  console.log('> Missing folder')
  usage()
  process.exit(1)
}

for (const filePath of fs.readdirSync(input)) {
  if (filePath.endsWith('.js')) {
    transformFile('./' + path.join(input, filePath))
  }
}

function transformFile (filePath) {
  import(filePath).then((file) => {
    const object = objectPath ? file.default[objectPath] : file.default
    const json = JSON.stringify(object, null, 2)
    const output = path.basename(filePath).split('.js')[0] + '.json'

    fs.writeFileSync(`./json/${output}`, json)
    console.log(`- JSON created: ./json/${output}`)
  })
}

function usage () {
  console.log('usage: ./js-to-json.js folder [objectPath]')
}