const EWS = require('node-ews');

const CREDENTIALS = require('./credential');
// exchange server connection info
const ewsConfig = {
  username: CREDENTIALS.USERNAME,
  password: CREDENTIALS.PASSWORD,
  host: CREDENTIALS.HOST
};

// initialize node-ews
const ews = new EWS(ewsConfig);

// define ews api function
const ewsFunction = 'GetFolder';

// define ews api function args
const ewsArgs = {
  'FolderShape': {
    'BaseShape': 'AllProperties'
  },
  'FolderIds' : {
    'DistinguishedFolderId': {
      'attributes': {
        'Id': 'calendar'
      }
    }
  }
};

// define custom soap header
const ewsSoapHeader = {
  't:RequestServerVersion': {
    attributes: {
      Version: "Exchange2013"
    }
  }
};
// query ews, print resulting JSON to console
ews.run(ewsFunction, ewsArgs, ewsSoapHeader)
  .then(result => {

    console.log(JSON.stringify(result));
  })
  .catch(err => {
    console.log(err.stack);
  });