glbatch request with Merit API in Node.js

merit-api-glbatch-request.js

// See API spec here:
// https://www.merit.ee/juhend/muud/Merit_Aktiva_API_specification.pdf

var CryptoJS = require('crypto-js');
var request = require('request');
require('request-debug')(request);
var moment = require('moment');

var API_KEY = '...';
var API_ID = '...';

var date = moment().format('YYYYMMDD');
var timestamp = moment().format('YYYYMMDDHHmmss');

var glbatchRequest = {
  DocNo: 'test',
  BatchDate: date,
  EntryRow: [
    {
      AccountCode: '1870',
      Debit: '12.00',
      Credit: '0.00'
    },
    {
      AccountCode: '1870',
      Debit: '0.00',
      Credit: '12.00'
    }
  ]
};

var dataString = API_ID + timestamp + JSON.stringify(glbatchRequest);
var hash = CryptoJS.HmacSHA256(dataString, API_KEY);
var signature = CryptoJS.enc.Base64.stringify(hash);

var url = 'https://aktiva.merit.ee/api/v1/sendglbatch' +
 '?ApiId=' + API_ID + '&timestamp=' + timestamp + '&signature=' + signature;

request({
    url: url,
    method: 'POST',
    json: true,
    headers: { 'content-type': 'application/json' },
    body: glbatchRequest
  },
  function (request, response) {
    console.log('Response body: ', response.body);
  }
);