react-native-mmkv

import { MMKV } from 'react-native-mmkv'; const storage = new MMKV(); // Set values storage.set('user.name', 'John Doe'); storage.set('user.age', 30); storage.set('isLoggedIn', true); storage.set('lastLoginTimestamp', Date.now()); const settings = { theme: 'dark', notifications: true }; storage.set('appSettings', JSON.stringify(settings)); // Get values const userName = storage.getString('user.name'); const userAge = storage.getNumber('user.age'); const isLoggedIn = storage.getBoolean('isLoggedIn'); const lastLogin = storage.getNumber('lastLoginTimestamp'); const appSettingsString = storage.getString('appSettings'); const appSettings = appSettingsString ? JSON.parse(appSettingsString) : {}; console.log(`User: ${userName}, Age: ${userAge}, Logged In: ${isLoggedIn}`); console.log(`App Settings: ${JSON.stringify(appSettings)}`); // Delete values storage.delete('user.age'); console.log('User age after deletion:', storage.getNumber('user.age')); // Should be undefined or default // Clear all data // storage.clearAll(); // console.log('All data cleared:', storage.getAllKeys()); // Example with encrypted storage (requires a separate 'id') const encryptedStorage = new MMKV({ id: 'my-encrypted-storage', encryptionKey: process.env.MMKV_ENCRYPTION_KEY ?? 'my-secret-key' }); encryptedStorage.set('secretData', 'This is a secret!'); console.log('Encrypted data:', encryptedStorage.getString('secretData'));