A short example of how to bulk update a list of Hubspot contacts using node.js and the Hubspot API

updateContacts.js

/**
hubspot API - how to update a list of contatcs using hubspot API and node.js

The MIT License (MIT)

Copyright (c) 2015 Nik Martin

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
var request = require('request');
var baseUrl = 'https://api.hubapi.com';
var hapikey = '?hapikey=YOUR HAPI KEY HERE';
var RATE = 10; //hubspot APIs are limited to 10 requests/sec

var contactList = [THIS IS AN ARRAY OF CONTACT IDS TO UPDATE, POSSBIBLY READ IN FROM A CSV OR JSON];

//The list of contact properties to update
var contactProps = {
  properties: [{
    "property": "lead_rating",
    "value": "13"
  }, {
    "property": "contact_tag",
    "value": "DUP"
  }, {
    "property": "lifecyclestage",
    "value": ""
  }, {
    "property": "hs_lead_status",
    "value": ""
  }]
};

var requestOptions = {};
requestOptions.method = "POST";
requestOptions.json = true;
requestOptions.body = contactProps;

function makeAPIRequest(id, callback) {
  requestOptions.url = baseUrl + '/contacts/v1/contact/vid/' + id + '/profile' + hapikey;
  request(requestOptions, function(error, response, body) {
    if (!error && response.statusCode === 204) {
      return callback(true); //success
    } else {
      return callback(response.statusCode); //fail
    }
  });
}
var i = 0; //initialize list counter here

function updateContact(id) {
  if (i < contactList.length) { //do we still have contacts to update?
    makeAPIRequest(id, function(code) {
      if (code) {
        console.log('done: %s', id);
      } else {
        console.log('not done: %s', id)
      }
    });
    i++; //increment list position
    setTimeout(function() {
      updateContact(contactList[i]);
    }, 1000 / RATE);
  }
}

//kick off the process
updateContact(contactList[0]);