programming.in.th | Tasks Backup

backup.js

const admin = require('firebase-admin')
const fs = require('fs')

const serviceAccount = require('./grader-ef0b5-c147bbe98312.json')

admin.initializeApp({ credential: admin.credential.cert(serviceAccount) })

const db = admin.firestore()

const taskDocRefs = db.collection('tasks').orderBy('difficulty')

taskDocRefs.get().then(data => {
  const result = []
  data.docs.forEach(doc => {
    result.push(doc.data())
  })
  fs.writeFile('./backup.json', JSON.stringify(result), err => {
    if (err) {
      console.log(`BACKUP ERROR WITH MESSAGE ${err}`)
    }

    console.log('BACKUP SUCCESSFULLY')
  })
})