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Einkaufsliste-Endpunkte duerfen vom SW nie gecached werden — Liste ist zustaendig fuer Check-States und muss immer live vom Server gelesen werden. Test + resolveStrategy-Erweiterung analog zu den anderen online-only-Endpunkten. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
46 lines
1.5 KiB
TypeScript
46 lines
1.5 KiB
TypeScript
export type CacheStrategy = 'shell' | 'network-first' | 'images' | 'network-only';
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type RequestShape = { url: string; method: string };
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// Pure function — sole decision-maker for "which strategy for this request?".
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// Called by the service worker for every fetch event.
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export function resolveStrategy(req: RequestShape): CacheStrategy {
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// All write methods: never cache.
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if (req.method !== 'GET' && req.method !== 'HEAD') return 'network-only';
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// Reduce URL to pathname — query string not needed for matching
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// except that online-only endpoints need no special handling here.
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const path = req.url.startsWith('http') ? new URL(req.url).pathname : req.url.split('?')[0];
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// Explicitly online-only GETs
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if (
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path === '/api/recipes/import' ||
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path === '/api/recipes/preview' ||
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path === '/api/recipes/extract-from-photo' ||
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path.startsWith('/api/recipes/search/web') ||
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path.startsWith('/api/shopping-list')
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) {
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return 'network-only';
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}
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// Images
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if (path.startsWith('/images/')) return 'images';
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// App-shell: build assets and known static files
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if (
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path.startsWith('/_app/') ||
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path === '/manifest.webmanifest' ||
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path === '/icon.svg' ||
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path === '/icon-192.png' ||
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path === '/icon-512.png' ||
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path === '/favicon.ico' ||
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path === '/robots.txt'
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) {
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return 'shell';
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}
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// Everything else: recipe pages, API reads, lists — network-first with
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// timeout fallback to cache (handled in service-worker.ts).
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return 'network-first';
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}
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