moai-platform-firestore

Offline-first Firestore enables real-time synchronization and offline persistence by configuring local caching through IndexedDB and automatic sync when connectivity resumes. Initialize Firestore with offline persistence enabled, set up real-time listeners, and declare security rules to control data access across online and offline states.

Yes. Firestore combines real-time listeners for live synchronization with offline caching to persist data locally. When offline, cached data remains accessible; when reconnected, listeners automatically sync changes and resolve conflicts, maintaining a consistent state across devices.

Declare security rules in Firestore to define granular data access control, then trigger Cloud Functions on document writes or deletes to enforce business logic server-side. Composite indexes enable complex queries while maintaining security boundaries and enabling real-time event processing.

Firestore is designed for mobile-first, cross-platform projects needing real-time sync and offline readiness. Real-time listeners propagate changes instantly across clients, offline persistence queues local edits, and declarative security rules ensure consistent access control across all platforms.

Offline persistence relies on local storage capacity; exceeding device limits may affect sync reliability. Real-time listeners require active network connectivity to detect remote changes; offline mode caches snapshots but cannot receive live updates until reconnected. Security rules cannot be enforced offline.

No prior NoSQL expertise is required. Firestore's declarative model and real-time listeners abstract database complexity. Understanding document structure and security rule syntax helps, but the Skill handles offline caching, presence tracking, and sync orchestration automatically.