JSPM – redux-middleware@0.1.4

Package Exports

redux-middleware

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (redux-middleware) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

All the common redux middleware

npm i -S redux-middleware

ES5 => 'redux-middleware/lib' ES6+ => 'redux-middleware/src/lib'

Usage

configureStore.js

import { createStore } from 'redux'
import { applyLogicalMiddleware } from 'redux-middleware'
import rootReducer from '../reducers'

const createStore = applyLogicalMiddleware()(createStore)

export default function configureStore() {
  return createStore(rootReducer, initialState)
}

middleware.js

import { applyMiddleware } from 'redux'

import metaRouter from 'redux-middleware/lib/metaRouter'
import thunk from 'redux-middleware/lib/thunk'
import readyStatePromise from 'redux-middleware/lib/readyStatePromise'
import logger from 'redux-middleware/lib/logger'
import crashReporter from 'redux-middleware/lib/crashReporter'


/** Default array of useful redux middleware */
export default function middleware() {
  return  [ metaRouter
          , thunk
          , readyStatePromise
          , logger
          , crashReporter
          ]
}

export const applyLogicalMiddleware = () => applyMiddleware(...middleware())

metaRouter.js

import timeoutScheduler from './timeoutScheduler'
import identityHandler from './identityHandler'
import apiDispatcher from './apiDispatcher'
import routeHandler from './routeHandler'
import idleMiddleware from './idleMiddleware'
import errorHandler from './errorHandler'

/**
 * Lets you dispatch special actions with a { meta } field.
 *
 * This middleware will chain through all middleware specified in metaMap in
 * order and return the result.
 */
export const createMetaRouter = (metaMap = new Map( [ [ 'delay', timeoutScheduler ]
                                                    , [ 'identity', identityHandler ]
                                                    , [ 'api', apiDispatcher ]
                                                    , [ 'route', routeHandler ]
                                                    , [ 'idle', idleMiddleware ]
                                                    , [ 'err', errorHandler ]
                                                    ] )) => store => next => action => {
  if(!action.meta)
    return next(action)
  const supportedTypes = metaMap.keys()
  const metaTypes = Object.keys(action.meta)
  let result = metaTypes.filter(x => supportedTypes.includes(x))
                        .map(x => metaMap.get(x))
                        .reduce((last, middleware) => middleware(last), action)
  return next(result)
}

export default createMetaRouter()