I encountered an unexpected Uncaught TypeError in Firebase: It seems that the property 'initializeApp' is not defined. I am puzzled as to why 'firebase' is not recognized

Having trouble recognizing Firebase even with the proper import in the configuration file. Any idea why?

import firebase from 'firebase/app'
import 'firebase/firestore'
import 'firebase/auth'

const firebaseConfig = {
  apiKey: "XXX",
  authDomain: "XXX",
  projectId: "XXX",
  storageBucket: "XXX",
  messagingSenderId: "XXX",
  appId: "XXX",
  measurementId: "XXX"
}

//initialize firebase
firebase.initializeApp(firebaseConfig)

const projectAuth = firebase.auth()
const projectFirestore = firebase.firestore()
const timestamp = firebase.firestore.FieldValue.serverTimestamp

export { projectAuth, projectFirestore, timestamp }
javascriptfirebasevue.jstypeerror

Answer №1

If you have upgraded to version 9.0.0, then you will need to utilize compat libraries for the namespaced version:

import firebase from 'firebase/compat/app'
import 'firebase/compat/firestore'
import 'firebase/compat/auth'

However, it is recommended to use the new Modular syntax, which helps with tree-shaking (removing unused code) to optimize your web app's size and speed.

import { initializeApp } from "firebase/app"
import { getAuth } from "firebase/auth";
import { getFirestore } from "firebase/firestore"

const app = initializeApp(firebaseConfig)

const projectAuth = getAuth(app)
const projectFirestore = getFirestore(app)

export { projectAuth, projectFirestore }

For more detailed information, refer to the official documentation

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