import { applyMiddleware, compose } from 'redux'; import thunk from 'redux-thunk'; import { routerMiddleware } from 'react-router-redux'; import sentryMiddleware from './sentryMiddleware'; import persistState from './persistState'; export default function(history) { const middlewares = []; const ravenMiddleware = sentryMiddleware(); if (ravenMiddleware) { middlewares.push(ravenMiddleware); } middlewares.push(routerMiddleware(history)); middlewares.push(thunk); return compose( applyMiddleware(...middlewares), persistState ); }