Firebaseの初期化設定

Firestore Databaseを初期化するときに躓いたのでその備忘録

firebase.js

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

const firebaseConfig = {
//apikey, authdomain, projectId, strageBucket, messagingSenderId, appId の情報を入力
  };

let db;

if (!getApps().length) {
  const app = initializeApp(firebaseConfig);
  db = getFirestore(app);
}

export default db