index.js

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import { applyMiddleware, compose, createStore } from 'redux';
import thunkMiddleware from 'redux-thunk';
import { BrowserRouter } from 'react-router-dom';

import './index.css';
import App from './components/App';
import registerServiceWorker from './registerServiceWorker';
import reducers from './reducers/index';

// eslint-disable-next-line no-underscore-dangle
const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;

const store = createStore(reducers, composeEnhancers(applyMiddleware(thunkMiddleware)));

ReactDOM.render(
  <Provider store={store}>
    <BrowserRouter>
      <App />
    </BrowserRouter>
  </Provider>,
  document.getElementById('root'),
);

registerServiceWorker();