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💾 Storage & State Persistence

The AppCatalyst RN Starter Kit utilizes the highly performant react-native-mmkv for all synchronous, persistent storage needs. This library offers best-in-class read/write speeds, which is essential for a smooth user experience.

🚀 MMKV Storage Utility

We include a simple storage utility that wraps the core MMKV instance, providing clean, synchronous methods for storing and retrieving JSON-compatible data.

  • Technology: react-native-mmkv (High-performance C++ key-value storage).
  • Benefits: Offers up to 30x faster read/write times compared to AsyncStorage.

Basic Usage

import { MMKV } from 'react-native-mmkv';
 
// Global instance used for all storage operations
export const storage = new MMKV();
 
// Utility methods for getting, setting, and removing JSON data
export function getItem<T>(key: string): T { ... }
export async function setItem<T>(key: string, value: T) { ... }
export async function removeItem(key: string) { ... }
State ManagementOneSignal