Node Sauce Labs Test Changes

Wrapper around all Sauce Labs REST APIs for Node.js (v14 or higher) including support for Sauce Connect Proxy and TypeScript definitions.


To install the package run:

npm install saucelabs



Your Sauce Labs username.

Type: string Default: process.env.SAUCE_USERNAME


Your Sauce Labs access key.

Type: string Default: process.env.SAUCE_ACCESS_KEY


Your Sauce Labs datacenter region. The following regions are available:

Type: string Default: us


If you want to tunnel your API request through a proxy please provide your proxy URL.

Type: string Default: null


If you want to set request headers, as example {‘User-Agent’: ‘node-saucelabs’}

Type: object
Default: {'User-Agent': 'saucelabs/<VERSION> (nodejs <PLATFORM>)'}


All accessible API commands with descriptions can be found here.

As CLI Tool

This package if installed globally can be used as CLI tool to access the API from the command line:

$ npm install -g saucelabs
$ sl listJobs $SAUCE_USERNAME --limit 5 --region eu
{ jobs:
   [ { id: '19dab74f8fd848518f8d2c2cee3a6fbd' },
     { id: 'dc08ca0c7fa14eee909a093d11567328' },
     { id: '5bc6f70c777b4ae3bf7909a40f5ee41b' },
     { id: 'f40fe7b044754eaaa5f5a130406549b5' },
     { id: 'd1553f71f910402893f1e82a4dcb6ca6' } ] }

You can find all available commands and options with description by calling:

$ sl --help
# show description for specific command
$ sl listJobs --help

or update the job status by calling:

$ sl updateJob cb-onboarding 690c5877710c422d8be4c622b40c747f "{\"passed\":false}"

or download a job asset:

$ sl downloadJobAsset 690c5877710c422d8be4c622b40c747f video.mp4 --filepath ./video.mp4

or upload a job asset:

$ sl uploadJobAssets 690c5877710c422d8be4c622b40c747f --files ./video.mp4 --files ./log.json

or start Sauce Connect Proxy in EU datacenter:

# start Sauce Connect tunnel for eu-central-1 region
$ sl sc --region eu --tunnel-name "my-tunnel"
# run a specific Sauce Connect version
$ sl sc --scVersion 4.5.4
# see all available Sauce Connect parameters via:
$ sl sc --help

You can see all available Sauce Connect parameters on the Sauce Labs Docs.

As NPM Package

The following example shows how to access details of the last job you were running with your account that is being exposed as environment variables as SAUCE_USERNAME and SAUCE_ACCESS_KEY. Alternatively you can pass the credentials via options to the constructor:

import SauceLabs from 'saucelabs';
// if imports are not supported by your Node.js version, import the package as follows:
// const SauceLabs = require('saucelabs').default;

(async () => {
  const myAccount = new SauceLabs();
  // using constructor options
  // const myAccount = new SauceLabs({ user: "YOUR-USER", key: "YOUR-ACCESS-KEY"});

  // get full webdriver url from the client depending on region:
  console.log(myAccount.webdriverEndpoint); // outputs ""

  // get job details of last run job
  const jobs = await myAccount.listJobs(process.env.SAUCE_USERNAME, {
    limit: 1,
    full: true,

     * outputs:
     * { jobs:
        [ { browser_short_version: '72',
            creation_time: 1551711453,
            'custom-data': null,
            browser_version: '72.0.3626.81',
            owner: '<username-redacted>',
            id: 'dc08ca0c7fa14eee909a093d11567328',
            record_screenshots: true,
            record_video: true,
            build: null,
            passed: null,
            public: 'team',
            end_time: 1551711471,
            status: 'complete',
            start_time: 1551711454,
            proxied: false,
            modification_time: 1551711471,
            tags: [],
            name: null,
            commands_not_successful: 1,
            consolidated_status: 'complete',
            manual: false,
            assigned_tunnel_id: null,
            error: null,
            os: 'Windows 2008',
            breakpointed: null,
            browser: 'googlechrome' } ] }

   * start Sauce Connect Proxy
  const sc = await myAccount.startSauceConnect({
     * you can pass in a `logger` method to print Sauce Connect log messages
    logger: (stdout) => console.log(stdout),
     * see all available parameters here:
     * all parameters have to be applied camel cased instead of with hyphens, e.g.
     * to apply the `--tunnel-name` parameter, set:
    tunnelName: 'my-tunnel',

  // run a test
  // ...

  // close Sauce Connect
  await sc.close();

  // upload additional log files and attach it to your Sauce job
  await myAccount.uploadJobAssets('76e693dbe6ff4910abb0bc3d752a971e', [
    // either pass in file names
    // or file objects
      filename: 'myCustomLogFile.json',
      data: {
        someLog: 'data',

You may wonder why listJobs requires a username as first parameter since you’ve already defined the process.env. The reason for this is that Sauce Labs supports a concept of Team Accounts, so-called sub-accounts, grouped together. As such functions like the mentioned could list jobs not only for the requesting account, but also for the individual team account. Learn more about it here

webdriverEndpoint property

You can use the webdriverEndpoint property of the client to get the full WebDriver endpoint to connect to Sauce Labs, e.g.:

const myAccount = new SauceLabs({
  user: 'YOUR-USER',
  region: 'eu', // run in EU datacenter

// get full webdriver url from the client depending on `region` option:
// outputs: ""


This module was originally created by Dan Jenkins with the help of multiple contributors (Daniel Perez Alvarez, Mathieu Sabourin, Michael J Feher, and many more). We would like to thank Dan and all contributors for their support and this beautiful module.


Copyright 2012 Sauce Labs, Inc. Licensed Apache-2.0