Simple bot for whatsapp

wabot.js

const fs = require('fs')
const makeWASocket = require('@adiwajshing/baileys').makeWALegacySocket

// Chat id
const chadtId = 'numbers-morenumbers@g.us'

const sock = makeWASocket({
  printQRInTerminal: true
})

// start
sock.ev.on('connection.update', ({ connection, lastDisconnect }) => {
  if (connection === 'open')
    console.log('started')
})

// ping
sock.ev.on('messages.upsert', async m => {
  console.log(JSON.stringify(m, undefined, 2))
  for (const message of m.messages)
    if (message?.message?.conversation?.toLowerCase() === 'ping')
      await sock.sendMessage(message.key.remoteJid, { text: 'pong' }, { quoted: message })
})

// sticker
sock.ev.on('messages.update', async m => {
  console.log(JSON.stringify(m, undefined, 2))
  
  for (const { update } of m) {
    if (update?.key?.remoteJid !== chatId)
      continue

    const info = {
      sticker: fs.readFileSync('sticker.webp'),
      mimetype: 'image/webp',
      height: 64,
      width: 64,
    }

    if (update.message === null)
      await sock.sendMessage(update.key.remoteJid, info)
  }
})