fire.js

// // Firebase App (the core Firebase SDK) is always required and
// // must be listed before other Firebase SDKs
// var firebase = require("firebase/app");
// 
// // Add the Firebase products that you want to use
// require("firebase/database");
// require("firebase/auth");
// 
// const config = require("./credentials.js");
// 
var admin = require("firebase-admin");

var serviceAccount = require("./private-key.json");


const fire = admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: "https://p-edu-test-default-rtdb.firebaseio.com"
});

const db = fire.database();
const auth = fire.auth();

module.exports = {
    fire,
    db,
    auth
};