ReaxDB

The simplest way to store data in Dart & Flutter. Start with just 3 lines of code, scale to millions of records.

🆕 Version 1.4.0: Introducing Simple API - Zero configuration, 3 lines to start! See changelog

// That's it! You're ready to go
final db = await ReaxDB.simple('myapp');
await db.put('user', {'name': 'John', 'age': 30});
final user = await db.get('user');

Why ReaxDB?

✅ Dead Simple - Start with 3 lines, no configuration needed
✅ Blazing Fast - 21,000+ writes/second, instant cache reads
✅ Scale When Ready - From simple key-value to advanced queries
✅ Pure Dart - Works everywhere: iOS, Android, Web, Desktop, Server
✅ Production Ready - ACID transactions, encryption, real-time sync

Installation

dependencies:
  reaxdb_dart: ^1.4.0

Quick Start

1. Basic Usage (90% of use cases)

import 'package:reaxdb_dart/reaxdb_dart.dart';

// Open database
final db = await ReaxDB.simple('myapp');

// Store any JSON data
await db.put('user:1', {
  'name': 'Alice',
  'email': 'alice@example.com',
  'age': 25
});

// Get data
final user = await db.get('user:1');
print(user['name']); // Alice

// Query with patterns
final users = await db.getAll('user:*');
users.forEach((key, value) {
  print('$key: ${value['name']}');
});

// Delete data
await db.delete('user:1');

// Close when done
await db.close();

2. Real-time Updates

// Listen to changes
db.watch('user:*').listen((event) {
  print('User ${event.key} changed');
});

// Make changes - listeners are notified automatically
await db.put('user:2', {'name': 'Bob'});

3. Batch Operations (faster for multiple items)

// Store multiple items at once
await db.putAll({
  'user:1': {'name': 'Alice'},
  'user:2': {'name': 'Bob'},
  'user:3': {'name': 'Charlie'},
});

// Delete multiple items
await db.deleteAll(['user:1', 'user:2']);

When to Use ReaxDB

Perfect for:

• 📱 Mobile apps needing offline-first storage
• 🚀 Startups wanting to move fast without database complexity
• 📊 Apps with 100-1M records that need speed
• 🔄 Real-time features like live updates, syncing
• 🛡️ Secure apps needing built-in encryption

ReaxDB vs Others:

Feature	ReaxDB	Hive	SQLite	Isar
Setup complexity	⭐ Simple	⭐ Simple	⭐⭐⭐ Complex	⭐⭐ Medium
Performance	⚡ 21k/sec	⚡ Fast	🐢 Slower	⚡ Fast
Pure Dart	✅ Yes	✅ Yes	❌ No	❌ No
Real-time	✅ Built-in	❌ No	❌ No	✅ Yes
Encryption	✅ Built-in	✅ Yes	⚠️ Extension	✅ Yes
Advanced queries	✅ Yes	❌ Limited	✅ SQL	✅ Yes
Active development	✅ Yes	⚠️ Deprecated	✅ Yes	✅ Yes

Need More Power?

ReaxDB grows with your app. When you need advanced features, they're one line away:

// Need transactions? ✅
await db.advanced.transaction((txn) async {
  // Your atomic operations here
});

// Need indexes for complex queries? ✅
await db.advanced.createIndex('users', 'age');
final youngUsers = await db.advanced.collection('users')
    .whereBetween('age', 18, 25)
    .find();

// Need encryption? ✅
final secureDb = await ReaxDB.simple('myapp', encrypted: true);

📚 See Advanced Documentation for transactions, indexes, aggregations, and more.

Examples

Todo App

// Store todos
await db.put('todo:1', {
  'title': 'Buy milk',
  'done': false,
  'created': DateTime.now().toIso8601String()
});

// Get all todos
final todos = await db.getAll('todo:*');

// Mark as done
final todo = await db.get('todo:1');
todo['done'] = true;
await db.put('todo:1', todo);

User Settings

// Save settings
await db.put('settings', {
  'theme': 'dark',
  'notifications': true,
  'language': 'en'
});

// Read settings
final settings = await db.get('settings');
final isDark = settings['theme'] == 'dark';

Shopping Cart

// Add to cart
await db.put('cart:product-123', {
  'name': 'Flutter Book',
  'price': 29.99,
  'quantity': 2
});

// Get cart total
final items = await db.getAll('cart:*');
double total = 0;
items.forEach((_, item) {
  total += item['price'] * item['quantity'];
});

Performance

• 21,000+ writes per second
• 333,000+ reads per second from cache
• Handles millions of records efficiently
• 10x faster than SQLite for key-value operations

Resources

Documentation

• 📖 Advanced Documentation - Transactions, indexes, performance tuning
• 📊 Performance Benchmarks - Detailed comparisons with other databases
• 🚀 Migration Guide - Moving from Hive/Isar to ReaxDB

Examples

• 💡 Simple Example - Quick start guide
• ✅ Todo App - Full-featured todo application
• 💬 Chat App - Real-time chat with encryption
• 🎮 Flutter Demo - Interactive Flutter demo

Support

• 🐛 Report Issues
• ⭐ Star on GitHub
• ☕ Support Development

License

MIT License - see LICENSE file for details.

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Ready to build something amazing? Start with ReaxDB.simple() and scale when you need to! 🚀