npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

micro-app-util

v0.0.13

Published

适用于Vue & React 的微前端改造工具,能够快速将现有项目改造为微前端基座

Downloads

2

Readme

微前端改造工具

适用于Vue & React 的微前端改造工具,能够快速将现有项目改造为微前端基座

且不侵入子项目业务代码

安装

npm i micro-app-util
or
yarn add micro-app-util

使用

1. 声明子应用

在项目 src 目录下创建微前端应用列表文件. 文件名称任意,以下以microApps.js为例

// microApps.js  示例代码,请根据实际项目进行修改

const { origin, hostname } = location
const isLocal = hostname === 'localhost' // 请根据实际项目地址进行修改

export default {
  dataManagement: {
    name: 'dataManagement',
    title: '数据管理',
    isLocal,
    origin,
    devOrigin: 'http://localhost:5050',
    baseRoute: '',
    publicPath: '/microapp/data-management',
    devPublicPath: '/base',
    gitlab: 'http://abc/data-management',
    usePrefetch: !isLocal,
    isViteApp: true // 子应用使用Vite构建
  },
}

参数说明

name

必填,应用名称,用于下文 LoadMicroApp 组件获取子应用信息

title

必填,用于子应用加载失败时的提示

isLocal

必填,是否是本地开发模式,示例中使用hostname是否为localhost

origin

必填,子应用所部署的域名,示例中使用当前基座应用域名

devOrigin

必填,子应用在本地开发时的服务地址

devPublicPath

必填,本地dev开发时的静态资源前缀路径,如果子应用是Vite应用,请添加此前缀,并在子应用vite.config.js中将base设置为对应的值

// 子应用 vite.config.js
import { defineConfig } from 'vite';

export default defineConfig((command) => {
	return {
		base: command === 'build' ? publicPath : devPublicPath // 此处的值应与microApps配置保持一致
	}
})

baseRoute *

选填,为子应用路由配置额外的根路径,如果基座应用是history路由,子应用是hash路由,可以不设置baseRoute。

isViteApp *

选填,子应用是否是由Vite构建,如果是,则开启额外的资源处理,此字段在webpack应用中不生效

publicPath *

选填,子应用部署路径为非根路径时,需要进行静态资源路径补全

gitlab *

选填,用于本地开发时,子应用加载失败后的错误提示

usePrefetch *

选填,是否在线上启用子应用的预加载,本地服务不生效

2. 注册子应用

主应用入口文件中(通常是main.js)注册子应用

// main.js
import Message from '您的message组件库';
import microApps from './microApps'

import { initMicroApp } from 'micro-app-util/dist/vue' // Vue2/Vue3
import { initMicroApp } from 'micro-app-util/dist/react' // React

import 'micro-app-util/dist/style.css' // 按需使用默认样式

// 注册子应用, 尽量在应用render前注册
initMicroApp(microApps, {
  onError: (app) => {
    const { title = '', gitlab = '' } = app
    Message.error({
      showClose: true,
      duration: 5000,
      dangerouslyUseHTMLString: true,
      message: `微前端: <strong>${title}</strong> 尚未启动, 或此应用不允许跨域请求,请更改设置。<u><a href="${gitlab}" target="_blank">点此前往应用仓库</a></u>`
    })
  }
})

// ...

initMicroApp(appList [, callback])

参数说明

appList 必填,在步骤1中声明的应用列表,用于注册子应用

callback 选填,用于加载子应用失败时的错误提示,默认是浏览器自带的 alert 事件

3. 加载子应用界面

3.1 注册全局组件(Vue2/Vue3)

全局注册使用更方便, 在入口文件(通常是main.js)中全局注册

Vue2
// main.js
import Vue from 'vue';
import { LoadMicroApp } from 'micro-app-util/dist/vue2'
import microApps from './microApps'

// 如果需要默认样式
import 'micro-app-util/dist/style.css'

Vue.use(LoadMicroApp, { appList: microApps })
Vue3
// main.js
import Vue from 'vue';
import LoadMicroApp from 'micro-app-util/dist/LoadMicroAppVue3.vue' // !!注意这里是默认导出
import microApps from './microApps'

// 如果需要默认样式
import 'micro-app-util/dist/style.css'

Vue.use(LoadMicroApp, { appList: microApps })
React

暂不支持全局注册,使用方式请参考下文使用组件

参数说明

appList,注册全局组件时为必填,值为步骤1 声明子应用中声明的应用列表,用于拉取相关子应用信息

3.2 使用组件

以下代码将会拉取名为 dataManagement 的子应用

Vue2/Vue3

<template>
  <LoadMicroApp name="dataManagement" />
</template>

<script>

export default {
  name: 'Demo',
};
</script>
React
// xxxPage.jsx 
import { LoadMicroApp } from 'micro-app-util/dist/react'
import microAppList from '@/microApps.js' 
export default () => {
	return (
      // code...
			<LoadMicroApp name='appName' appList={microAppList} className='test-class'/> 
    	// code...
	)
}
参数说明

参数说明

appList 在React应用中必填,Vue应用中若注册了全局组件,使用组件时可不填。

name 必填,所要拉取的子应用名称,对应步骤1中 name 属性。

默认样式

如果需要默认样式,请手动导入

// main.js
import 'micro-app-util/dist/style.css' // 引入后,子应用宽高为容器节点的100%

4. 监听组件卸载

组件 LoadMicroApp 在被卸载后,会通过window派发事件进行通知,可在子应用中监听此事件进行后续操作

window.addEventListener(`unmount-${name}`, () => { // name是子应用的名称
  console.log(`子应用 ${name} 已被卸载`)
})

例如子应用 nametest-app 其监听示例代码如下

const handlerFunction = () => {
 // ...
}
window.addEventListener(`unmount-test-app`, handlerFunction)

在离开页面后取消监听事件

window.removeEventListener(`unmount-test-app`, handlerFunction)

注意事项

跨域

本地开发时,拉取子应用资源跨域

若本地开发时加载子项目出现跨域,则需要子项目开发服务器开启允许跨域

vue.config.js 或 webpack.config.js
module.exports = {
  devServer: {
    headers: {
      'Access-Control-Allow-Origin': '*' // 或自行配置所需域名
    }
  }
}
vite.config.js
export default = {
  server: {
    headers: {
      'Access-Control-Allow-Origin': '*' // 或自行配置所需域名
    }
  }
}

本地开发时,通过主应用访问子应用时,子应用接口跨域

需要将子应用devServer 中配置的proxy主应用中配置一遍

路由加载规则

例:

主应用 页面 Page1 对应路由 为 /page1

子应用 页面 ChildPage1 对应路由为 /test-child/page1

子应用 页面 ChildPage2 对应路由为 /test-child/page2

此时主应用与子应用根路径不一致,可通过配置 baseRoute 解决

主应用microApps列表中(参考此文第一节)

{
  // ...
  name: 'Child',
  baseRoute: '/test-child'
}

若 此时浏览器路径为 /page1,将会加载子应用页面 ChildPage1