Trying to make aws4 work with got and elastic search

es-client.js

import AWS from 'aws-sdk'
import aws4 from 'aws4'
import bole from 'bole'
import got from 'got'
import Promise from 'bluebird'
import config from './config'

const logger = bole('es-client')

const { region, host } = config
const awsConfig = new AWS.Config({ region })

function request (options) {
  const opts = Object.assign({
    host,
    region: awsConfig.region,
    protocol: 'https:',
    headers: {
      'Content-Type': 'application/json'
    },
    json: true
  }, options)
  aws4.sign(opts, awsConfig.credentials)
  const { method, path } = opts
  logger.debug({ method, path, host }, 'Performing request')
  return Promise.resolve(got(opts)).then(resp => resp.body)
}

const es = {}

const METHODS = [
  'get',
  'post',
  'put',
  'delete'
]

METHODS.forEach(method => {
  es[method] = (path, body) => request({
    path,
    method: method.toUpperCase(),
    body: JSON.stringify(body)
  })
})

es.bulk = ops => request({
  path: '/_bulk',
  method: 'POST',
  body: ops.map(op => `${JSON.stringify(op)}\n`).join('')
})

es.getRecord = ({index, type, id}) => es.get(`${index}/${type}/${id}`)
es.indexRecord = ({index, type, id, body}) => es.put(`/${index}/${type}/${id}`, body)
es.deleteRecord = ({index, type, id}) => es.delete(`/${index}/${type}/${id}`)

export default es