import { createStore, compose } from 'redux'; import { persistState } from 'redux-devtools'; import rootReducer from '../reducers'; import DevTools from '../containers/DevTools'; const finalCreateStore = compose( DevTools.instrument(), persistState( window.location.href.match( /[?&]debug_session=([^&]+)\b/ ) ) )(createStore); export default function configureStore(initialState) { const store = finalCreateStore(rootReducer, initialState); if (module.hot) { module.hot.accept('../reducers', () => store.replaceReducer(require('../reducers')) ); } return store; }