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Locorda Drift - SQLite storage implementation for locorda_core

locorda_drift #

Drift (SQLite) storage implementation for locorda_core.

Overview #

This package provides a concrete implementation of the Storage interface from locorda_core using Drift ORM for cross-platform SQLite storage.

Features #

  • Cross-platform SQLite storage - Works on iOS, Android, Web, Windows, macOS, Linux
  • Document + Triple storage - Stores RDF as both complete documents and queryable triples
  • CRDT metadata support - Dedicated tables for Hybrid Logical Clocks and tombstones
  • Index optimization - Efficient storage for sync performance indices
  • Type-safe queries - Generated Drift APIs for compile-time safety

Database Schema #

The schema is defined as Drift table classes in lib/src/sync_database.dart. Drift generates the corresponding SQL DDL at build time.

Usage #

Main thread #

import 'package:locorda/locorda.dart';

final locorda = await initLocorda(
  storage: DriftMainHandler(
    options: LocordaDriftNativeOptions(
      databaseName: 'my_app_sync',
    ),
  ),
  remotes: [...],
  config: myLocordaConfig,
);

Worker thread #

import 'package:locorda/worker.dart';

Future<WorkerParams> createEngineParams(
  SyncEngineConfig config,
  WorkerContext context,
) async {
  return WorkerParams(
    storage: DriftWorkerHandler(
      options: LocordaDriftNativeOptions(databaseName: 'my_app_sync'),
    ),
    backends: [...],
  );
}

See the minimal example for a complete working setup.