Book Image

Progressive Web Application Development by Example

By : Chris Love
Book Image

Progressive Web Application Development by Example

By: Chris Love

Overview of this book

Are you a developer that wants to create truly cross-platform user experiences with a minimal footprint, free of store restrictions and features customers want? Then you need to get to grips with Progressive Web Applications (PWAs), a perfect amalgamation of web and mobile applications with a blazing-fast response time. Progressive Web Application Development by Example helps you explore concepts of the PWA development by enabling you to develop three projects, starting with a 2048 game. In this game, you will review parts of a web manifest file and understand how a browser uses properties to define the home screen experience. You will then move on to learning how to develop and use a podcast client and be introduced to service workers. The application will demonstrate how service workers are registered and updated. In addition to this, you will review a caching API so that you have a firm understanding of how to use the cache within a service worker, and you'll discover core caching strategies and how to code them within a service worker. Finally, you will study how to build a tickets application, wherein you’ll apply advanced service worker techniques, such as cache invalidation. Also, you'll learn about tools you can use to validate your applications and scaffold them for quality and consistency. By the end of the book, you will have walked through browser developer tools, node modules, and online tools for creating high-quality PWAs.
Table of Contents (12 chapters)

The podcast application

This chapter introduces you to different service worker concepts and features like the service worker life cycle, caching, and push notifications. To do this, we are going to build a simple podcast application. This application will demonstrate how to tackle the service worker life cycle and response caching:

The minimal podcast application requirements include:

  • Fast loading
  • Search podcasts
  • Favorite podcasts
  • Play audio files
  • Persist episodes for offline listening

The application requires some server-side help, which for our purposes will be a set of snapshot data I took from public sources. The data is part of the project repository (, so you can recreate the application.

You will learn how to register a service worker, the basics of the service worker life cycle, how service worker caching works, and how to use IndexedDB...