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@cohook/core

v1.3.0-beta.0

Published

Framework-independent, lightweight, progressive, immutable data management

Downloads

31

Readme

@cohook/core

框架无关、轻量级、渐进式的不可变数据管理方案

✨特性

  • 读写分离,自定义Action去处理数据,灵活化组装实现逻辑复用
  • 轻量,API简单化,类型提示友好
  • 数据不可变, 使用immer管理数据
  • 支持插件化拓展功能

📦 安装

yarn add @cohook/core immer
npm i @cohook/core immer

💡API

createContainer(initialData [, option])

createContainer作为容器工厂函数,接收初始数据initialData和可选的插件选项pluginsOption和共享选项shareOption等配置,返回一个容器对象container

pluginsOption

插件选项是一个对象,key为插件名,value为插件方法具体实现。

⚠️ 为了插件的更简便实现,改写了插件方法的this参数,因此插件方法不能用箭头函数

  • this: PluginContext<T>

| 属性 | 说明 | 类型(T为容器数据的类型) | | -- | -- | -- | | getData | 容器对象container的getData方法 | () => T | | commit | 容器对象container的commit方法 | (updater: Updater) => T | | tryToTrackEffect | 追踪对应的数据,注入副作用钩子effectHook | (option: TrackOption)) => { trackId: number } | null | | cleanUpEffect | 清除副作用钩子 | (trackId: number) => void |

🌰

  • loggerPlugin
function loggerPlugin() {
  this.tryToTrackEffect({
    effectHook: (option) => {
      logToMyService(option)
    }
  })
}

shareOption

共享选项配置常用于跨应用(或窗口)共享容器,包括提供者shareProvider和消费者shareConsumer两个配置:

| 属性 | 说明 | 类型(T为容器数据的类型) | | -- | -- | -- | | shareProvider | 共享容器的提供者,常用于缓存容器 | (container: Container) => void | | shareConsumer | 共享容器的消费者,用于查找缓存的容器 | () => Container |

🌰

// 跨iframe共享容器
const getSharedOption: () => ShareOption<T> = () => {
  const scopeName = Symbol.for('__scopeName__')

  return window.top === window ? {
    shareProvider: container => window[scopeName] = container
  } : {
    shareConsumer: () => window.top[scopeName]
  }
}

const container = createContainer(initialData,  getSharedOption())

container

container.getData()

用于获取当前的容器数据,就像是一个内置的action,可在任何地方使用。

container.commit(updater)

commit 接受一个函数updater(immer中的produce的第二个参数保持一致)作为参数,用来创建修改数据的Action,可灵活组合容器对象提供的方法来组装Action。

const dec = () => {
  const count = container.getData()
  if(count < 0) return
  container.commit((draft) => void (draft.current -= 1)
}