airbnb_clone/frontend/store/store.js

import { createStore, applyMiddleware } from 'redux';
// import logger from 'redux-logger';
import thunk from 'redux-thunk';
import rootReducer from '../reducers/root_reducer';

const configureStore = (preloadedState = {}) => (
    createStore(
        rootReducer,
        preloadedState,
        applyMiddleware(thunk)
    )
);

export default configureStore;