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mflux-react

v1.0.0

Published

*iflux = immutable.js + react.js*

Downloads

4

Readme

what is iflux ?

iflux = immutable.js + react.js

NPM

Why React ?

React.js犹如Facebook的文化基因所强调的一样move fast and break things, 在快速前进中打破了很多我们对于web开发的固有认识。 更厉害的是React把这种创新平移到移动开发(React native)实现了Learn once, Write everywhere.

React features

  1. 强调组件化的开发方式(更高的抽象层次,更好的分离关注点)

  2. 声明式的开发风格(更好的表现力)

  3. 单向的数据流动(简单可预测)

  4. 超高性能的渲染60fps不是梦 (掌声在哪里?)

  5. 最大的创新源于virtual dom (以及virtual native)

  6. 轻量,可以在现有的系统中快速试错

  7. 精确的生命周期,更简单的整合第三方的库(jquery)

我们期待走的更远 - dare for more

因为React的定位就是轻量级高效组件式的view library,但是在我们实际的应用开发工程中不仅仅需要处理view的问题,更复杂的是对于状态的控制。 官方的flux架构提供了一个很好的针对React的架构指导,但是代码量很大。 说到底flux就是在解决一个数据流向以及控制状态变化问题。这点om确实做的非常出色, 借助于Clojure的数据的特性(1. 数据不可变 2. 持久化数据结构 3.共享数据结构)在不断的追寻下,immutable.js出现在了眼前,如获至宝。 随着对immutable.js深入挖掘,发现正好契合了React的架构特点,可以使用Immutable很好的管理我们的Store,因为Immutable强调值语义, 能够更好的追踪状态的变化(cursor)且带来了更好的性能。

保持简单 -- KISS

  • 建议:优先选择connectToStore
+-----------------------+
|       WebApi          |
+-----------------------+
          |  
         \|/
+-----------------------+
|   Store(immutable)   |<-----+
+-----------------------+      |
           | //es5 style       |
           | StoreMixin        | msg(EventEmitter)
          \|/                  |
+------------------------+     |
|     React App          |-----|
+------------------------+
|      <Layout>          |
|        <SearchForm/>   |
|        <Toolbar/>      |
|        <DataGrid/>     |
|       </Layout>        |
+------------------------+

一个应用只有一个Store,单根数据源,单向数据流动,数据沉淀在顶层。 且通过PureRenderMix可以获取更好的性能。简直就是为React私人定制一般。

于是,顺其自然的写了iflux去更好的粘合React和immutable。

整体思路:

  1. React只承担view应该承担的事情(1. 资料呈现 2. 用户交互) 不处理任何的业务逻辑,就是根据数据去渲染dom即可,这样view可以做的很轻。

  2. 应用的全部数据沉淀在一个Store中,当全部数据在顶层时,很多事情都变得简单,因为获取数据变得十分廉价。无论是校验和对数据的转换控制都变得非常简单。

  3. React只是取数据渲染,其他的比如状态的变化全部通过事件pubsub通知appstore去更新数据。如果状态不会影响其他组件的级联变化可以放在组件内部消化掉。

  4. 所有的ajax封装在webapi模块中,全部promise化。回调回来通过cursor更新store, cursor更新store, store通知React去rerender。

  5. 区分View component 和 pure component。

How to use?


mkdir hello
cd hello
npm init
npm install react immutable iflux --save
npm install babel-loader --save-dev
➜  iflux-demo  tree -L 3
.
├── apps                #we like django's app-style
│   └── index           #app-name
│       ├── index.js    #viewcontainer component
│       ├── component   #collect of dump components
│       ├── store.js    #immutable store
│       └── webapi.js   #fetch remote resource
├── node_modules
├── package.json
└── webpack.config.js

5 directories, 4 files

Example

//webapi.js

export const fetchGithub = (name) => {
  return fetch(`http://github.com/${name}`)
};

export default {
  fetchGithub
};


//store.js
import { Store, msg } from 'iflux';
import { fromJS } from 'immutable';
import { fetchGithub } from './webapi';

const appStore = Store({
  name: '',
  githubInfo: {}
});

exports default appStore;

//when use immutable's cursor to update store
//react's view will auto re-render
msg.on('updateName', (name) => {
  appStore.cursor().set('name', name);
});

msg.on('submit', async () => {
  const data = await fetchGithub(name);
  appStore.cursor.set('githubInfo', fromJS(data));
});


//index.js

//es5-style
import React from 'react';
import {msg, mixins} from 'iflux';
import appStore from './store';
const {StoreMixin} = mixins;


const IfluxApp = React.createClass({
  //自动将Store中的data混入到state
  mixins: [StoreMixin(appStore)],

  render() {
    var store = appStore.data();

    return (
      <div>
        <form onSubmit={this._submit}>
            <input name="name" onChange={this._handleChange}/>
        </form>
        <div>
          {store.get('githubInfo')}
        </div>
      </div>
    );
  },

  _handleChange(e) {
    msg.emit('updateName', e.target.value);
  },

  _submit() {
    msg.emit('getGithubInfo');
  }
});


//es6-style
import React from 'react';
import { msg, connectToStore } from 'iflux';
import appStore from './store';

class IfluxApp extends React.Component {
  render() {
    const {store} = this.props;

    return (
      <div>
        <form onSubmit={this._submit}>
            <input name="name" onChange={this._handleChange}/>
        </form>
        <div>
          {store.get('githubInfo')}
        </div>
      </div>
    );
  }
}

export default connectToStore(appStore)(IfluxApp);

more

https://github.com/hufeng/iflux-validator-demo

https://github.com/hufeng/my-todo/tree/master/todo-iflux

https://github.com/hufeng/hn-news-iflux

https://github.com/QianmiOpen/react-starter