firebase initialization

firebase.js

import firebase from 'firebase/app';
import 'firebase/auth';
import 'firebase/database';

// Initialize Firebase
const config = {
  apiKey: process.env.REACT_APP_APIKEY,
  authDomain: process.env.REACT_APP_AUTHDOMAIN,
  databaseURL: process.env.REACT_APP_DATABASEURL,
  projectId: process.env.REACT_APP_PROJECTID,
  storageBucket: process.env.REACT_APP_STORAGEBUCKET,
  messagingSenderId: process.env.REACT_APP_MESSAGINGSENDERID
};

if (firebase.apps.length === 0) {
	firebase.initializeApp(config);
}

export default firebase;