import { applyMiddleware, compose, createStore } from 'redux'; import thunkMiddleware from 'redux-thunk'; import reducer from './reducer'; export default function configureStore(preloadedState) { const middlewares = [thunkMiddleware]; const middlewareEnhancer = applyMiddleware(...middlewares); const enhancers = [middlewareEnhancer]; const composedEnhancers = compose(...enhancers); const store = createStore(reducer, preloadedState, composedEnhancers); return store; }