firebase.ts

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

const firebaseConfig = {
  apiKey: process.env.NEXT_PUBLIC_API_KEY,
  authDomain: process.env.NEXT_PUBLIC_AUTH_DOMAIN,
  databaseURL: process.env.NEXT_PUBLIC_DATABASE_URL,
  projectId: process.env.NEXT_PUBLIC_PROJECT_ID,
  storageBucket: process.env.NEXT_PUBLIC_STORAGE_BUCKET,
  messagingSenderId: process.env.NEXT_PUBLIC_MESSAGING_SENDER_ID,
  appId: process.env.NEXT_PUBLIC_FIREBASE_APP_ID,
  measurementId: process.env.NEXT_PUBLIC_MEASUREMENT_ID
}

if (!firebase.apps.length) {
  firebase.initializeApp(firebaseConfig)
}

export const auth = firebase.auth()
export const firestore = firebase.firestore()
export const storage = firebase.storage()