Admin

03-22-2026, 06:36 AM #1

Progressive Web Apps provide native-like experiences on the web. Angular makes PWA setup straightforward.

Setup:
ng add @angular/pwa

This automatically:
- Adds a service worker configuration
- Creates a manifest.json file
- Adds default icons
- Configures the build for PWA support

Key PWA features:
- Offline support with service worker caching
- Push notifications
- Add to home screen prompt
- Background sync for offline data
- App shell for instant loading

Service worker configuration (ngsw-config.json):
- assetGroups: Cache static assets like JS, CSS, images
- dataGroups: Cache API responses with strategies
- Cache strategies: performance (cache first) vs freshness (network first)

Testing your PWA:
- Build with ng build --configuration production
- Serve with http-server (service workers need HTTPS or localhost)
- Use Lighthouse PWA audit to check compliance
- Test offline behavior in DevTools

Have you converted any Angular apps to PWAs? What was your experience?

indian

03-25-2026, 01:24 PM #2

Converting Angular apps to PWAs is surprisingly easy with ng add @angular/pwa. The offline support through service workers and the ability to install the app on home screens gives users a native-like experience. The ngsw-config.json gives you fine control over caching strategies for both assets and API calls.