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Cloud & infrastructure · #firebase
Offset paging in Firestore scales poorly. Use limit with startAfter and a stable orderBy to paginate by cursor, keep client state minimal, and accept the consistency trade-offs of anchored pages.
A concise guide to decide between Cloud Firestore and Realtime Database for mobile sync, with a feature table, trade‑off analysis, and validation steps.
Learn how to implement efficient pagination in Firebase Firestore using query cursors to avoid the performance and cost penalties of offsets.
Stop paying for skipped documents. Learn how to implement efficient, scalable pagination in Firebase Firestore using query cursors instead of offsets.
Learn how to implement Firestore cursor‑based pagination, avoid gaps or overlaps, and balance read costs for large datasets. Step‑by‑step example included.
A step‑by‑step guide to identify why Firestore SDK calls return 403/permission‑denied, map the symptom to common rule faults, verify each hypothesis, apply the fix, and know when to escalate.
Centralize Firestore security rules with reusable functions to enforce owner-based access in multi-tenant documents without duplicating logic.
When a backend API rejects Firebase Auth ID tokens with 401 or invalid_token, the problem often lies in token expiration, clock skew, project mismatch, or revocation. This guide walks through a structured diagnostic flow, shows how to inspect the token, and lists fixes and escalation steps.
Learn how to set up a Firestore‑triggered Cloud Function, understand its limits, and avoid the most common mistakes that can cause infinite loops or hanging deployments. Includes a working code sample, deployment steps, and verification tips.