mshared

1. mshared 是一个轻量的状态共享的库 （2.54kb）。
2. mshared 提供了一套 react 状态管理 Api。
3. mshared 通过设置 globalShare，实现微前端应用之前的通信（一主多从）。

Installation

yarn add mshared #or npm i mshared -S

Example For Qiankun

1. 首先 clone mshared：

git clone [email protected]:juicecube/mshared.git
cd mshared

2. 执行 scripts 和 启动 examples project：

yarn install
yarn run example:install
yarn run start

Visit http://localhost:7099.

Api

1. Shared

import { Shared } from 'mshared'

type StoreList = 'main' | 'demo' | 'partner'

export const share =
  new Shared() <
  StoreList >
  { storeName: 'main', initStore: { count: 0 }, type: 'global' }

参数	说明	默认值	必填
storeName	store 名称	无	是
initStore	store 初始值	{}	否
type	store 类型	child	否（child、global 可选）

2. share.setStore(storeName, store)

share.setStore('main', { count: 1 })

参数	说明	默认	必填
storeName	store 的名称	无	是
store	store 的值	无	是

3.share.setGlobalShare(Shared)

const globalShare = new Shared({
  storeName: 'global',
  initStore: { count: 0 },
  type: 'global',
})

const myShare = new Shared({
  storeName: 'myShare',
  initStore: { count: 0 },
  type: 'child',
})

myShare.share.setGlobalShare(globalShare)

const store = myShare.getStore() // store的值为{global:{count:0},myShare:{count:0}}

只允许 type 类型为 child 的支持当前方法,而且只能设置一个 globalShared

4. share.getStore

const share = new Shared({
  storeName: 'main',
  initStore: { count: 0 },
  type: 'global',
})

share.setStore('main', { count: 1 })

const store = share.getStore() // store的值为{main:{count:1}}

如果 share 设置了 globalShare,则返回全局的 store，否则返回当前 share 的 store。参考share.setGlobalShare实例

5. share.subscribe(callback)

shared.subscribe((state, prevState) => {
  console.log(state, prevState)
})

6. share.unSubscribe()

取消当前 share 的所有监听事件

7. ShareProvider React Api

import { Shared } from 'mshared'

type StoreList = 'main' | 'demo' | 'partner'

const share =
  new Shared() <
  StoreList >
  { storeName: 'main', initStore: { count: 0 }, type: 'global' }

export async function mount(props: any) {
  if (props.shared) {
    shared.setGlobalShare(props.shared)
  }

  ReactDOM.render(
    <ShareProvider shared={shared}>
      <YourApp />
    </ShareProvider>,
    props.container
      ? props.container.querySelector('#root')
      : document.getElementById('root')
  )
}

8. useShared React Hooks

import React from 'react'
import { useShared } from 'mshared'

export const Page = () => {
  const { store, setStore } = useShared()
  const { main } = store

  return (
    <button
      onClick={() => {
        setStore('main', { count: main.count + 1 })
      }}
    >
      计数器{main.count}
    </button>
  )
}

9. withShared React Hoc

import React from 'react'
import { withShared } from 'mshared'

const Page = (props) => {
  const { demo } = props.store
  return (
    <button
      onClick={() => {
        props.setStore('demo', { count: demo.count + 1 })
      }}
    >
      demo应用-计数器{demo.count}
    </button>
  )
}
export const Entry = withShared(Page)