Place a end crystal using mineflayer

place-end-crystal-mineflayer.js

const mineflayer = require('mineflayer')
const vec3 = require('vec3')

const bot = mineflayer.createBot({
  host: 'localhost',
  port: 40283,
  username: 'test',
  version: '1.16.5'
})

bot.once('spawn', async () => {
  await sleep(2000)

  const blockPos = bot.entity.position.floored().offset(3, -1, 0)

  bot.chat('/clear\n')
  bot.chat('/give test end_crystal\n')
  bot.chat(`/setblock ${blockPos.toArray().join(' ')} bedrock\n`)

  await sleep(2000)

  bot.placeEntity(bot.blockAt(blockPos), vec3(0, 1, 0))
})

function sleep (ms) {
  return new Promise(resolve => setTimeout(resolve, ms))
}