Offline-First Architecture with Smart Synchronization
App architecture that works without internet and syncs data when connectivity returns.
Create an app experience that works seamlessly offline, with conflict resolution and transparent synchronization for the user.
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Prompt objective
Create an app experience that works seamlessly offline, with conflict resolution and transparent synchronization for the user.
Real use case
An agritech company called CampoDigital has an app used by 3,000 farmers in areas with intermittent internet. Farmers record harvest data, input applications, and field inspections, but lose data when they have no signal. They need an app that works 100% offline.
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Replace the placeholders with your own context before you run the prompt. That usually improves the first output more than adding more instructions later.
Prompt
Design an offline-first architecture for [APP NAME], a [REACT NATIVE/FLUTTER] app used by [AUDIENCE] in [DESCRIBE THE CONNECTIVITY SCENARIO].
**Operations that must work offline:**
1) [OPERATION 1: e.g., create inspection record with photos]
2) [OPERATION 2: e.g., query inspection history]
3) [OPERATION 3: e.g., edit existing records]
4) [OPERATION 4: e.g., view maps/dashboards]
**1) Local Database:**
- DB choice: WatermelonDB vs. Realm vs. SQLite (expo-sqlite)
- Local database schema (tables, relationships, indexes)
- Migration strategy for schema updates
- File storage (images, documents) in local filesystem
- Storage limit and cleanup policy
**2) Sync Queue:**
- Pending operations queue (FIFO)
- Operation structure: `{ id, type, entity, payload, timestamp, retries }`
- Queue persistence (survives app kill/restart)
- Prioritization: critical operations first
- Retry with exponential backoff
- Batch sync: group operations for efficiency
**3) Synchronization Strategy:**
- Connectivity detection (NetInfo + polling)
- Automatic sync when connection returns
- Manual sync (pull-to-refresh)
- Background sync (if supported by OS)
- Partial sync: send deltas only (not full data)
- Payload compression for mobile data savings
**4) Conflict Resolution:**
- Scenario: same record edited offline on 2 devices
- Strategy: Last-Write-Wins vs. automatic merge vs. prompt user
- Conflict detection: version vectors or timestamps
- Merge rules per field (e.g., text → merge, number → LWW)
- Log of resolved conflicts for audit
**5) Offline UX:**
- Visual connectivity status indicator (discrete banner)
- Open directly in an AI — the text is pre-filled:
How to use this prompt
- 1Replace the key placeholders first: APP NAME, REACT NATIVE/FLUTTER, AUDIENCE, DESCRIBE THE CONNECTIVITY SCENARIO.
- 2Replace any bracketed placeholders like [this] with your own context.
- 3Add extra background information when you want more tailored results.
- 4Combine multiple prompts in one conversation when you need a richer output.
- 5Save your best-performing prompts so they are easy to reuse later.
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