'use strict'

const { Client } = require('@elastic/elasticsearch')
const client = new Client({
  cloud: { id: '<cloud-id>' },
  auth: { apiKey: 'base64EncodedKey' }
})

async function run () {
  await client.index({
    index: 'game-of-thrones',
    id: '1',
    document: {
      character: 'Ned Stark',
      quote: 'Winter is coming.'
    }
  })

  const exists = await client.exists({
    index: 'game-of-thrones',
    id: 1
  })

  console.log(exists) // true
}

run().catch(console.log)