A library used to make REST API calls to Thingworx from browser-side JavaScript in a Thingworx-ish way.

thingworx, connect, thingworx-connect
npm install thingworx-connect@1.0.4



A library used to make REST API calls to Thingworx from browser-side JavaScript in a Thingworx-ish way. You can call entities' services and get and set their properties.


Install it through npm:

npm i thingworx-connect

Or download one of the stand-alone flavors

Before Using

If applicable, please make sure that you enable CORS on the Thingworx server(s) you plan to make requests to. If you don't have admin access to the server, or don't know what I am talking about, you can always use a CORS proxy. I recommend using this one: cors-proxy


Either import the library using an ES6 import:

import Thingworx from 'thingworx-connect';

Or include it with a <script> tag:

<script src="thingworx-connect.umd.min.js"></script>

You can start making REST API calls to Thingworx right away! Simply pass in your server url to the .collections() method of the Thingworx object. If your server url's protocol is http, you can omit it. Similarly, if the port is 80, you can also omit it.

async function sample() {
  const { Things, ThingTemplates } = Thingworx.collections('http://localhost:8080');

  /* Reading properties */
  const myProperty = await Things['MyThing'].myProperty;

  /* Setting properties */
  // Make sure you specify the correct property type. In this example,
  // myProperty is of basetype STRING.
  await Things['MyThing'].myProperty.set('hello world');

  /* Calling services */

  // This will return a single value, be it a number, boolean, string, date, etc..
  const squareRoot = await Things['MathUtils'].GetSquareRoot({ number: 9 }).val();
  // This will return a json of the shape: { dataShape: { fieldDefinitions: {} }, rows: [] },
  // just as Thingworx infotables.
  const infoTable = await ThingTemplates['GenericThing'].GetImplementingThings().infoTable();

  // This will return a json.
  const json = await Things['Utilities'].GetMetadataAsJSON().json();

  // This will return undefined
  await Resources['EntityServices'].CreateThing({
    name: 'MyThing',
    thingTemplate: 'GenericThing',
    description: 'Thing created from browser-side javascript',

When calling .collections() without arguments, the browser will ask for your credentials when you make the first request.

You can also pass in the app key:

const { Things } = Thingworx.collections('http://localhost:8080', {
  appKey: '896548f2-eaab-46a4-b129-53f1531557a4'

or your username and password:

const { Things } = Thingworx.collections('https://localhost:8080', {
  username: 'myUserName',
  password: 'MyPassw0rd!'

You can also change the authentication parameters later on. Given this:

const collections = Thingworx.collections(thingworxProxyUrl, {
    username: 'myself',
    password: 'myCurrentPassword',
const { Resources, Users, Things } = collections;

We can do this:

async function changeUserOnRuntime() {
  // This will print 'myself'
  const currentUsername = await Resources['CurrentSessionInfo'].GetCurrentUser().val();

  // This will print 'otherUser'
    username: 'otherUser',
    password: 'otherPassword',
  const username2ndAttempt = await Resources['CurrentSessionInfo'].GetCurrentUser().val();

Or more crazy stuff:

async function changePasswordOnRuntime() {
  await Users['myself'].ChangePassword({
    oldPassword: 'myCurrentPassword',
    newPassword: 'myNewPassword',
    newPasswordConfirm: 'myNewPassword',

  // this will throw a 401 error
  await Things['MyThing'].MyService(); 

  // However this will perfectly work
    username: 'myself',
    password: 'myNewPassword',
  await Things['MyThing'].MyService();  // success!