index.js

import React from 'react';
import ReactDOM from 'react-dom';

import { BrowserRouter, Route } from 'react-router-dom';

import 'semantic-ui-css/semantic.min.css';

import {createStore, applyMiddleware} from 'redux';
import { Provider } from 'react-redux';

import thunk from 'redux-thunk';
import decode from 'jwt-decode';
import { composeWithDevTools } from 'redux-devtools-extension';

import App from './App';
import registerServiceWorker from './registerServiceWorker';
import rootReducer from './rootReducer';
import { userLoggedIn } from "./actions/auth";

const store = createStore(
  rootReducer,
  composeWithDevTools(applyMiddleware(thunk))
)

if (localStorage.bookwormJWT) {
  const payload = decode(localStorage.bookwormJWT);
  const user = { token: localStorage.bookwormJWT, email: payload.email, confirmed: payload.confirmed };
  store.dispatch(userLoggedIn(user));
}

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

registerServiceWorker();