Sync Engine

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How PocketSync works

PocketSync is a lightweight, event-driven synchronization engine designed specifically for SQLite databases. It efficiently tracks changes, synchronizes data across devices, and ensures consistency even in offline scenarios.

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Key Concepts

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1. Automatic change tracking

PocketSync automatically monitors your database for changes:

• No manual tracking required
• Seamless integration with existing SQLite databases
• Close to zero impact on your application’s performance

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2. Real-time synchronization

Changes are synchronized in real-time across devices:

• Instant propagation to online devices
• Automatic queuing for offline devices
• Efficient delta-based updates

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3. Offline-First Design

Your application works seamlessly offline:

• Full functionality without network connection
• Automatic conflict resolution
• Smooth reconnection handling

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Usage Patterns

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1. Local-First operations

All operations are performed locally first:

• Immediate response times
• No waiting for server confirmation
• Reliable operation in any network condition

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2. Background synchronization

Sync happens automatically in the background:

• No manual sync required
• Efficient bandwidth usage
• Battery-friendly operation

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3. Conflict management

Conflicts are handled automatically:

• Configurable resolution strategies
• Predictable outcomes
• Optional manual resolution

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Best practices

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1. Data modeling

• Use appropriate primary keys
• Consider relationships carefully
• Plan for concurrent modifications

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2. Transaction management

• Group related changes
• Maintain data consistency
• Use appropriate isolation levels

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3. Network considerations

• Handle intermittent connectivity
• Implement retry strategies
• Monitor sync status

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Getting started

1. Initialize PocketSync with your database
2. Define your sync configuration
3. Start the sync engine
4. Monitor sync status as needed

For detailed technical implementation, please refer to the Architecture documentation.