파이어베이스 웹앱 시작.

• 👨🏻‍💻MacBook Air (M1) Base

1. firebase 설치.
   npm install --save firebase

2. 초기화 및 사용.

import firebase from "firebase/app";
import "firebase/analytics";
import "firebase/auth";
import "firebase/firestore";

const firebaseConfig = {
  apiKey: "API_KEY",
  authDomain: "PROJECT_ID.firebaseapp.com",
  databaseURL: "https://PROJECT_ID.firebaseio.com",
  projectId: "PROJECT_ID",
  storageBucket: "PROJECT_ID.appspot.com",
  messagingSenderId: "SENDER_ID",
  appId: "APP_ID",
};

firebase.initializeApp(firebaseConfig);

export const authSvc = firebase.auth();
export const db = firebase.firestore();