Getting started

zustand is an amazing library that keeps state management as simple as you would have always loved it to be. zfy has been built on top of it to provide a useful set of tools to make that experience even more delightful.

๐Ÿ—๏ธ Installation

yarn add @colorfy-software/zfy

๐ŸŒบ Features

  • Fully typed with TypeScript

  • Standardized access/update API backed by Immer

  • Ability to manage & consume multiples stores at once

  • Simple API for store creation with custom middlewares

  • Out-of-the-box persist gate component & rehydration hook

  • Logger, persist & subscribe middlewares available via a simple flag

๐Ÿ’ป Usage

import {
  PersistGate,
  createStore,
  initStores,
  useRehydrate,
} from '@colorfy-software/zfy'
import AsyncStorage from '@react-native-async-storage/async-storage'

const simpleStore = createStore('groceries', ['kimchi', 'bok choy', 'tteokbokki' ])
const persistedStore = createStore(
  'user',
  { firstName: 'Jolyne' },
  { persist: { getStorage: () => AsyncStorage } },
)
import { SafeAreaView, Text } from 'react-native'

const Loader = () => (
  <SafeAreaView>
    <Text>โณ Loading...</Text>
  </SafeAreaView>
)

const App = () => (
  <PersistGate stores={[persistedStore]} loader={<Loader />}>
    <MyApp />
  </PersistGate>
)

// or

const App = () => {
  const isRehydrated = useRehydrate([persistedStore])
  return isRehydrated ? <Loader /> : <MyApp />
}
const { stores, useStores } = initStores([simpleStore, persistedStore])
console.log(stores.simpleStore.getState().data[2]) // 'tteokbokki'

// ...or don't!

console.log(persistedStore.getState().data.firstName) // 'Jolyne'
const Component = () => {
  const itemToPurchase = useStores('groceries', data => data[0]) // 'kimchi'
  const userName = useStores('user', data => data.firstName) // 'Jolyne'  
  return null
}

// or

const Component = () => {
  const itemToPurchase = simpleStore('groceries', data => data[0]) // 'kimchi'
  const userName = persistedStore('user', data => data.firstName) // 'Jolyne'
  return null
}
stores.groceries.getState().update(data => {
  data[3] = 'chai'
})

// or

simpleStore.getState().update(data => {
  data[3] = 'chai'
})
stores.reset()

// ...or one by one!

simpleStore.getState().reset()
persistedStore.getState().reset()

๐Ÿ’ซ Acknowledgments

As you can imagine: major thanks to the team of contributors behind zustand for such an amazing library! zfy also exists thanks to the folks working on Immer who made it so easy to deal with immutable state updates.

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