text: import firebase from 'firebase';
  
  let config = {
    apiKey: 'AIzaSyCet5FFchYI2P56oJMro7saNkkycH_YXLk',
    authDomain: 'library-new-weaver.firebaseapp.com',
    databaseURL: 'https://library-new-weaver.firebaseio.com',
    projectId: 'library-new-weaver',
    storageBucket: 'library-new-weaver.appspot.com',
    messagingSenderId: '578866059464'
  };
  
  let app = firebase.initializeApp(config);
  
  export const db = app.database();