htwkalender-pwa/frontend/public/sw.js

import { precacheAndRoute, cleanupOutdatedCaches } from 'workbox-precaching';
import { clientsClaim } from 'workbox-core';

self.skipWaiting();
clientsClaim();

cleanupOutdatedCaches();

// Precache the files from the manifest
precacheAndRoute(self.__WB_MANIFEST);

// Custom precaching logic for the /api/modules endpoint
self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open('api-modules-cache').then((cache) => {
      return fetch('/api/modules')
        .then((response) => {
          if (response.ok) {
            return cache.put('/api/modules', response);
          }
          throw new Error('Failed to fetch /api/modules');
        })
        .catch((error) => {
          console.error('Precaching /api/modules failed:', error);
        });
    })
  );
});