firebase.analytics is not a function

Question

I am trying to add analytics to an already existing web app. I initialize Firebase Analytics as described here.

---

const firebase = require('firebase');
firebase.initializeApp(config);
firebase.analytics();

I get this error TypeError: firebase.analytics is not a function

What could the problem be?

Answer 1

You have to import 'firebase/analytics' for side effects:

const firebase = require('firebase/app')
require('firebase/analytics')

firebase.initializeApp(config);
firebase.analytics();

That worked for me