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Building Progressive Web Apps with Cloud APIs

Administrator admin App Development JavaScript Intermediate Jan 09, 2026 12:41 AM 3 views

What are PWAs?

Progressive Web Apps combine the best of web and mobile apps. They work offline, can be installed on devices, and provide app-like experiences.

Service Worker Setup

// sw.js
const CACHE_NAME = 'my-app-v1';
const urlsToCache = ['/', '/styles.css', '/app.js'];

self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then((cache) => cache.addAll(urlsToCache))
  );
});

self.addEventListener('fetch', (event) => {
  event.respondWith(
    caches.match(event.request)
      .then((response) => response || fetch(event.request))
  );
});

Manifest File

{
  "name": "My Cloud App",
  "short_name": "CloudApp",
  "start_url": "/",
  "display": "standalone",
  "theme_color": "#3B82F6",
  "icons": [...]
}

PWA Features

  • Offline Support
  • Installable
  • Push Notifications
  • Background Sync
  • Fast Loading

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