extract ordered attachments from the mastodon export / take-out archive

getpics.js

const fs = require('fs')
const array = JSON.parse(fs.readFileSync('outbox.json')).orderedItems
const dir = 'pics'

if (!fs.existsSync(dir)){
  fs.mkdirSync(dir)
}

array.forEach((msg, i) => {
  if (msg.type == 'Create' && msg.object.attachment.length > 0) {
    msg.object.attachment.forEach((att, i) => {
      fs.copyFile('./'+att.url, dir+'/'+msg.published+'_'+i+att.url.substr(att.url.lastIndexOf('.')), ()=>{})
    })
  }
})