What is register-service-worker?
The register-service-worker npm package is a utility for registering service workers in web applications. It simplifies the process of setting up service workers, handling updates, and managing the service worker lifecycle events.
Basic Service Worker Registration
This feature allows you to register a service worker with various lifecycle hooks such as ready, registered, cached, updatefound, updated, offline, and error. These hooks provide callbacks for different stages of the service worker's lifecycle.
import { register } from 'register-service-worker';
register('/service-worker.js', {
ready() {
console.log('Service worker is active.');
},
registered() {
console.log('Service worker has been registered.');
},
cached() {
console.log('Content has been cached for offline use.');
},
updatefound() {
console.log('New content is downloading.');
},
updated() {
console.log('New content is available; please refresh.');
},
offline() {
console.log('No internet connection found. App is running in offline mode.');
},
error(error) {
console.error('Error during service worker registration:', error);
}
});
Custom Service Worker Path
This feature allows you to specify a custom path for your service worker file. It provides the same lifecycle hooks as the basic registration but uses a different service worker script.
import { register } from 'register-service-worker';
register('/custom-service-worker.js', {
ready() {
console.log('Custom service worker is active.');
},
registered() {
console.log('Custom service worker has been registered.');
},
cached() {
console.log('Custom content has been cached for offline use.');
},
updatefound() {
console.log('New custom content is downloading.');
},
updated() {
console.log('New custom content is available; please refresh.');
},
offline() {
console.log('No internet connection found. Custom app is running in offline mode.');
},
error(error) {
console.error('Error during custom service worker registration:', error);
}
});