javascript - Initialize Firebase references in two separate files in the new API

Question

I have upgraded to the new API and don't know how to initialize Firebase references in two separate files:

    /* CASE 1 */
    // 1st file
    var config = {/* ...  */};
    firebase.initializeApp(config);
    var rootRef = firebase.database().ref();

    // 2nd file - initialize again
    var config = {/* ...  */};
    firebase.initializeApp(config);
    var rootRef = firebase.database().ref();

RESULT: bundle.js:535 Uncaught Error: Firebase App named '[DEFAULT]' already exists.

    /* CASE 2 */
    // 1st file
    var config = {/* ...  */};
    firebase.initializeApp(config);
    var rootRef = firebase.database().ref();

    // 2nd file - don't initialize
    var rootRef = firebase.database().ref();

RESULT: bundle.js:529 Uncaught Error: No Firebase App '[DEFAULT]' has been created - call Firebase App.initializeApp().

Before the new API I just called

var myFirebaseRef = new Firebase("https://<YOUR-FIREBASE-APP>.firebaseio.com/");

in each file, and it worked okay.

Answer 1

Waitting for answers