dispatch/client/js/store.js

import { createStore, applyMiddleware, compose } from 'redux';
import thunk from 'redux-thunk';
import createReducer from 'state';
import { routeReducer, routeMiddleware } from 'utils/router';
import message from './middleware/message';
import createSocketMiddleware from './middleware/socket';
import commands from './commands';

export default function configureStore(socket) {
  /* eslint-disable no-underscore-dangle */
  const composeEnhancers =
    window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;

  const reducer = createReducer(routeReducer);

  const store = createStore(
    reducer,
    composeEnhancers(
      applyMiddleware(
        thunk,
        routeMiddleware,
        createSocketMiddleware(socket),
        message,
        commands
      )
    )
  );

  return store;
}