Build a TikTok LIVE chat bot

npm install tiktok-live-api

// bot.mjs
import { TikTokLive } from 'tiktok-live-api'

const USERNAME = process.env.TIKTOK_USERNAME
const API_KEY  = process.env.TIKTOOL_API_KEY
const COOKIES  = process.env.TIKTOK_COOKIES

async function reply(roomId, text) {
  const r = await fetch('https://api.tik.tools/webcast/chat', {
    method: 'POST',
    headers: { 'content-type': 'application/json', 'x-api-key': API_KEY, 'x-cookie-header': COOKIES },
    body: JSON.stringify({ room_id: String(roomId), text, unique_id: USERNAME }),
  }).then(r => r.json())
  if (!r.signed_url) return console.warn('sign failed:', r.error)

  const out = await fetch(r.signed_url, {
    method: 'POST',
    headers: {
      'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36',
      'content-type': 'application/json; charset=UTF-8',
      'origin': 'https://www.tiktok.com', 'referer': 'https://www.tiktok.com/',
      cookie: COOKIES,
    },
    body: r.body,
  }).then(r => r.json())
  if (out.status_code === 0) console.log(`>> replied: ${text}`)
}

const client = new TikTokLive(USERNAME, { apiKey: API_KEY })
let roomId = null
client.on('connected', e => { roomId = e.roomId })
client.on('chat', async e => {
  console.log(`@${e.user.uniqueId}: ${e.comment}`)
  if (e.comment.toLowerCase() === '!hello') await reply(roomId, `hi @${e.user.uniqueId} 👋`)
  if (e.comment.toLowerCase() === '!ping')  await reply(roomId, 'pong 🏓')
})
client.on('gift', e => console.log(`gift: ${e.user.uniqueId} → ${e.giftName} (${e.diamondCount}💎)`))
client.connect()