React Native custom theme selector - ./src/lib/storage.ts

storage.ts

import AsyncStorage from '@react-native-async-storage/async-storage'
import { Platform } from 'react-native'

const os = Platform.OS
const webStorage = window.localStorage
const appStorage = AsyncStorage

const getItem = async (key: string) => {
  if (key) {
    return os === 'web'
      ? webStorage.getItem(key)
      : await appStorage.getItem(key)
  }

  return null
}

const setItem = async (key: string, payload: string) => {
  if (key && payload) {
    return os === 'web'
      ? webStorage.setItem(key, payload)
      : await appStorage.setItem(key, payload)
  }

  return null
}

export { getItem, setItem }