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react-dynamic-modules

v0.1.0

Published

provide React component with dynamic modules

Downloads

9

Readme

React Dynamic Modules

Provide React component with dynamic modules.

Introduction

Nowadays dynamic import becomes more and more popular. This package introduces dynamic import to React world using the same popular HOC pattern and make it easy to coordinate with other libs in React eco.

Installation

npm install --save react-dynamic-modules

Usage

Import a lib

import withDynamicModules from 'react-dynamic-modules'

const MyComponent = withDynamicModules({
  moment: () => import('moment')
})(
  function ({moment}) {
    let date
    if (moment) date = moment()
    else date = new Date()
    
    return <div>{date.toString()}</div>
  }
)

Import a component

import withDynamicModules from 'react-dynamic-modules'

const MyComponent = withDynamicModules({
  DynamicComponent: () => import('./DynamicComponent').then(mod => mod.default)
})(
  function ({DynamicComponent}) {    
    return <div>
      {
        DynamicComponent && <DynamicComponent/>
      }
    </div>
  }
)

Get status

import withDynamicModules from 'react-dynamic-modules'

const MyComponent = withDynamicModules({
  DynamicComponent: () => import('./DynamicComponent').then(mod => mod.default),
  moment: () => import('moment'),
  invalidModule: () => import('???')
}, {status: 'loadingStatus'})(
  function ({loadingStatus}) {    
    return <div>
      // true if all modules loaded successfully, else false
      <p>{loadingStatus.ready}</p>
      
      // null if no error, else the any of the error
      <p>{loadingStatus.error.stack}</p>
      
      // true if this module loaded successfully, else false
      <p>{loadingStatus.invalidModule.ready}</p>
      
      // null if no error, else the error
      <p>{loadingStatus.invalidModule.error}</p>
    </div>
  }
)

Sophisticated usage with recompose

import withDynamicModules from 'react-dynamic-modules'
import {compose, branch, renderComponent} from 'recompose'

import MyErrorComp from './MyErrorComp'
import MyLoadingComp from './MyLoadingComp'

const MyComponent = compose(
  withDynamicModules({
    DynamicComponent: () => import('./DynamicComponent').then(mod => mod.default),
    moment: () => import('moment'),
  }, {status: 'loadingStatus'}),
  branch(({loadingStatus}) => !!loadingStatus.error, () => <MyErrorComp/>),
  branch(({loadingStatus}) => !loadingStatus.ready, () => <MyLoadingComp/>),
)(
  function ({moment, DynamicComponent}) {
    // now we can use these modules with confidence
    return <div>
       <DynamicComponent now={moment()}/>
    </div>   
  }
)

License

MIT