insomnia/app/redux/create.js

import {createStore, applyMiddleware} from 'redux'
import thunkMiddleware from 'redux-thunk'
import createLogger from 'redux-logger'
import rootReducer from './reducer'

export default function configureStore (initialState) {
  const store = createStore(
    rootReducer,
    initialState,
    applyMiddleware(
      thunkMiddleware,
      createLogger({collapsed: true})
    )
  );

  if (module.hot) {
    module.hot.accept('./reducer', () => {
      const nextReducer = require('./reducer.js').default;
      store.replaceReducer(nextReducer);
    })
  }

  return store;
}