Book Image

Building Enterprise JavaScript Applications

By : Daniel Li
Book Image

Building Enterprise JavaScript Applications

By: Daniel Li

Overview of this book

With the over-abundance of tools in the JavaScript ecosystem, it's easy to feel lost. Build tools, package managers, loaders, bundlers, linters, compilers, transpilers, typecheckers - how do you make sense of it all? In this book, we will build a simple API and React application from scratch. We begin by setting up our development environment using Git, yarn, Babel, and ESLint. Then, we will use Express, Elasticsearch and JSON Web Tokens (JWTs) to build a stateless API service. For the front-end, we will use React, Redux, and Webpack. A central theme in the book is maintaining code quality. As such, we will enforce a Test-Driven Development (TDD) process using Selenium, Cucumber, Mocha, Sinon, and Istanbul. As we progress through the book, the focus will shift towards automation and infrastructure. You will learn to work with Continuous Integration (CI) servers like Jenkins, deploying services inside Docker containers, and run them on Kubernetes. By following this book, you would gain the skills needed to build robust, production-ready applications.
Table of Contents (26 chapters)
Title Page
Copyright and Credits
Packt Upsell
Free Chapter
The Importance of Good Code

Integrating with Travis CI

Travis is an online CI service that installs, builds, and tests our project. Travis is free for open source projects and integrates well with other popular services such as GitHub. There's also nothing to install—all we have to do is include a .travis.yml configuration file at the root of our repository, and configure the repository in Travis's web application. Travis has a very shallow learning curve and can save us a lot of time. To get started, go to and sign in using your GitHub account.


Travis has two URLs, which is used for open source projects, and, which is used for private projects. Make sure you're using the right one.

It will ask you for many permissions; these permissions are required for Travis to do the following:

  • Read the contents of all repositories associated with your account: This allows Travis to view the content of the .travis.yml file, as well as to be able to clone your repository in order to build...