index.js

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
import {createStore} from 'redux';
import { BrowserRouter } from 'react-router-dom';
import firebase from 'firebase';
import reducer from './store/reducer';
import { Provider } from 'react-redux'
const store = createStore(reducer);

const config = {

    apiKey: "AIzaSyDfRWLuvzYmSV3TwmLOppZT0ZZbtIZRlrs",
    authDomain: "barterbuddy-4b41a.firebaseapp.com",
    databaseURL: "https://barterbuddy-4b41a.firebaseio.com",
    projectId: "barterbuddy-4b41a",
    storageBucket: "barterbuddy-4b41a.appspot.com",
    messagingSenderId: "879139739414"

};
firebase.initializeApp(config);

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

export default firebase;
export const auth = firebase.auth();