firebase.js

import firebase from "firebase/app";
import "firebase/auth";
import "firebase/database";

const firebaseConfig = function() {
  return {
    apiKey: process.env.FIREBASE_API_KEY,
    authDomain: process.env.FIREBASE_AUTH_DOMAIN,
    databaseURL: process.env.FIREBASE_DATABASE_URL,
    projectId: process.env.FIREBASE_PROJECT_ID,
    storageBucket: process.env.FIREBASE_STORAGE_BUCKET,
    messagingSenderId: process.env.FIREBASE_MESSAGING_SENDER_ID,
    appId: process.env.FIREBASE_APP_ID
  };
};

export default async ({ Vue }) => {
  // console("Initialize firebase");
  Vue.prototype.$firebaseConfig = firebaseConfig();
  firebase.initializeApp(firebaseConfig());
  Vue.prototype.$db = firebase.database();
};