ElasticSearch REST client that allows body in GET requests

esRestClient.js

const https = require("https")
const http = require("http")
const fetch = require("node-fetch")

const ElasticSearchRestClient = {
  get: function(body, options = {}) {
    return new Promise((resolve, reject) => {
      const callback = function(response) {
        let str = ""

        response.on("data", function(chunk) {
          str += chunk
        })

        response.on("end", function() {
          resolve(JSON.parse(str))
        })
      }

      const req = (options.protocol === "https:" ? https : http).request(options, callback)

      req.on("error", err => {
        reject(err)
      })

      if(body !== null) {
        req.write(body)
      }

      req.end()
    })
  },

  post: async function(url, options, body) {
    // const url = `${options.protocol}//${options.host}:${options.port}${options.path}`
    const response = await fetch(url, { method: "POST", headers: options.headers, body: body })
    return await response.json()
  }
}

module.exports = { ElasticSearchRestClient }