Kedux

Installation

First install with npm or yarn:

yarn add kedux
npm install kedux --save

Then include the reducer with kedux key:

import { combineReducers, createStore } from 'redux';
import { reducer as keduxReducer } from 'kedux';
 
const reducer = combineReducers({
  // Other reducers...
  kedux: keduxReducer
});
 
const store = createStore(reducer);
 
// Rest of the App

Usage

Suppose you build a simple tabs page using component state:

import React from 'react';
 
const tabData = {
  'tab1': 'TAB 1 content',
  'tab2': 'TAB 2 content',
  'tab3': 'TAB 3 content'
};
 
export default class Tabs extends React.PureComponent {
  state = {
    activeKey: 'tab1'
  };
 
  handleChangeTab(value) {
    this.setState({ activeKey: value });
  }
 
  render() {
    const { activeKey } = this.state;
    const content = tabData[activeKey];
 
    return (
      <div id="tabs">
        <nav>
          {Object.keys(tabData).map((tabKey) => (
            <a key={tabKey} onClick={this.handleChangeTab.bind(this, tabKey)}>
              {tabKey}
            </a>
          ))}
        </nav>
        
        <div className="tab-content">
          {content}
        </div>
      </div>
    );
  }
}

Now you can rewrite previous code using kedux:

import React from 'react';
import PropTypes from 'prop-types';
import withKedux from 'kedux';
 
const tabData = {
  'tab1': 'TAB 1 content',
  'tab2': 'TAB 2 content',
  'tab3': 'TAB 3 content'
};
 
@withKedux({
  activeKey: { // Component-level name
    path: 'somePage/tabs/activeTabKey', // State-level name
    defaultValue: 'tab1' // Default value if store value is undefined
  }
  // Add as many as you want
})
export default class Tabs extends React.PureComponent {
  static propTypes = {
    activeKey: PropTypes.number,
    set: PropTypes.func
  };
 
  handleChangeTab(value) {
    // Dispatch action to set value to store
    // Use component-level name to set value
    this.props.set('activeKey', value);
  }
 
  render() {
    const { activeKey } = this.props;
    const content = tabData[activeKey];
 
    return (
      <div id="tabs">
        <nav>
          {Object.keys(tabData).map((tabKey) => (
            <a key={tabKey} onClick={this.handleChangeTab.bind(this, tabKey)}>
              {tabKey}
            </a>
          ))}
        </nav>
        
        <div className="tab-content">
          {content}
        </div>
      </div>
    );
  }
}

API

In the above code, activeKey is component-level name of the data which will be passed to the component as props. Kedux state is in the following format:

{
  "somePage/tabs/activeTabKey": {
    value: "tab1"
  },
  ...
}