react-native-sync-preference

Synchronous gets for user preferences. Uses standard UserDefaults on iOS and SharedPreferences with name react-native and MODE_PRIVATE

Getting started

$ npm install react-native-sync-preference --save

Mostly automatic installation

Auto linking for RN 0.60+

Older Version:

$ react-native link react-native-sync-preference

Usage

interface PreferenceKeys {
    [key: string]: string;
}

class SyncPreference {
    static get(key: string): string | undefined;
    static set(key: string, value: string): Promise<void>;
    static clear(key: string): Promise<void>;
    static getMultiple(keys: string[]): PreferenceKeys;
    static setMultiple(data: PreferenceKeys): Promise<void>;
    static clearMultiple(keys: string[]): Promise<void>;
    static getAll(): PreferenceKeys;
    static clearAll(): Promise<void>;
}

import SyncPreference from 'react-native-sync-preference';

// Get a value from preferences
SyncPreference.get('favorites')

Synchronous

All write operations are reflected immediately through the JS module. You can use the returned promise to know when the changes have been acknowledged by the native platform.