meridian_sync 0.5.0

Meridian sync client for Flutter — local-first, offline-first, realtime sync with CRDT conflict resolution.

Meridian Sync — Flutter SDK

Local-first sync engine for Flutter apps. Offline-first. Real-time. Conflict-resolved.

Quick Start

import 'package:meridian_sync/meridian_sync.dart';

final db = MeridianClient(
  serverUrl: 'wss://api.example.com/sync',
  schema: SchemaDefinition(
    version: 1,
    collections: {
      'todos': CollectionSchema(fields: {
        'id': FieldDef(type: 'string'),
        'title': FieldDef(type: 'string'),
        'done': FieldDef(type: 'boolean', default: false),
      }),
    },
  ),
);

// Reactive query
db.collection('todos').find().listen((todos) {
  setState(() => this.todos = todos);
});

// Write
await db.collection('todos').put({'id': '1', 'title': 'Build sync engine'});

Features

• HLC (Hybrid Logical Clock) for causal ordering
• LWW CRDT for field-level conflict resolution
• SQLite persistence via sqflite
• WebSocket transport
• Reactive Stream-based queries
• Complete offline support

Links

• GitHub Repository
• MeridianDB Documentation