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Service Workers: Building Offline-First Applications

Implement service workers for offline functionality. Learn caching strategies, background sync, and push notifications.

B
Bootspring Team
Engineering
February 27, 2026
3 min read

Service workers enable offline functionality, background sync, and push notifications.

Registering a Service Worker

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Basic Service Worker

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Caching Strategies

Cache First (Static Assets)

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Network First (API Requests)

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Stale While Revalidate

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Complete Strategy Router

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Background Sync

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Push Notifications

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Service workers unlock powerful offline experiences with proper caching and background sync.

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