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no firebase app call firebase.initializeapp()

YOU.com answered on September 11, 2023 Popularity 5/10 Helpfulness 3/10

answer no firebase app call firebase.initializeapp()

no firebase app call firebase.initializeapp()

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import { initializeApp, getApps } from 'firebase/app';
import { getFirestore, useFirestoreEmulator } from 'firebase/firestore';

// Check if Firebase app is already initialized
if (getApps().length === 0) {
  // Initialize Firebase app
  const firebaseConfig = {
    // Your Firebase configuration
  };
  initializeApp(firebaseConfig);
}

// Get Firestore instance
const firestore = getFirestore();

// Use the Firestore emulator
useFirestoreEmulator(firestore, 'localhost', 8080);

// Now you can use Firestore without calling firebase.initializeApp()
// For example, fetch some data from Firestore
const collectionRef = collection(firestore, 'myCollection');
const querySnapshot = await getDocs(collectionRef);
querySnapshot.forEach((doc) => {
  console.log(doc.data());
});

Popularity 5/10 Helpfulness 3/10 Language javascript

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Contributed on Sep 11 2023

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no firebase app call firebase.initializeapp()

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