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)

Service Workers – Notification, Synchronization, and Our Podcast App

In Chapter 1, Introduction to Progressive Web Apps, you read about how the web has fallen short in the mobile era and why progressive web applications can level your website to equal or even better capabilities than native options. Service workers are the most important part of a progressive web application because they are the application's backbone.

The web manifest and the home screen icon enhance the ability to develop a relationship with the customer and control the launch experience. Service workers enable a programmatic user experience enhancement when a page is loaded and even when it isn't.

Service workers sit between the browser and the network and act as a proxy server. They provide more than just a caching layer; they are an extensible backbone:

For the coder, service workers are...