Discover how to build Progressive Web Apps with offline support, push notifications, responsive design, and native-like experiences. Gain insights into service workers, caching strategies, and app optimization.

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Web development is challenging, but progressive web applications provide a significant advantage over traditional web applications by enabling capabilities such as installation to the device, offline access, and push notifications.

You’ll start by learning about PWAs and understanding the core tenets of a PWA. Next, you’ll learn to implement features like offline support, intercepting network requests, and app installation banners using service worker APIs. You’ll then progress to caching strategies for improved performance, IndexedDB for storing data locally, and background syncing for unstable networks. Finally, you’ll cover responsive web design and native-device APIs to make your PWA feel and look like a native app.

After completing this course, you can build progressive apps with engaging and responsive experiences. You’ll also be prepared to optimize your existing web apps as PWAs, extending their reach and improving performance.

Building Progressive Web Applications


# Using the Background Sync API

To use the Background Sync API, we first need to register our synchronization task using the `register()` method of the `SyncManager` interface, which returns a `Promise` that resolves with a `SyncRegistration` object. Here's an example:


Understand the workings of background synchronization in a web app and the steps required to implement it.

Introduction

Understanding the App Manifest

The Service Workers

Caching Using Service Workers

Cache Strategies

Offline Image Viewer

IndexedDB

Note-Taking App

Creating App-Like UI and UX

Offline Experience with Background Sync API

Web Push Notifications (Notification API, Push API)

Native Device Features

The Photo-Sharing App

Wrapping Up

The Working of the Background Sync API

Using the Background Sync API