index.js

import { initializeApp } from "firebase/app";
import { getAnalytics } from "firebase/analytics";
// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries
const firebase = require("firebase-admin");
// Your web app's Firebase configuration
// For Firebase JS SDK v7.20.0 and later, measurementId is optional
const firebaseConfig = {
  apiKey: "AIzaSyBHkh-ud3uZPD_w530Mav_o_AOBEO-E7mQ",
  authDomain: "kbr-shoot01.firebaseapp.com",
  databaseURL: "https://kbr-shoot01.firebaseio.com",
  projectId: "kbr-shoot01",
  storageBucket: "kbr-shoot01.appspot.com",
  messagingSenderId: "244138302237",
  appId: "1:244138302237:web:35fb29588977e6fc785ff4",
  measurementId: "G-YCV7TSS2R5"
};

// Initialize Firebase
const app = initializeApp(firebaseConfig);
const analytics = getAnalytics(app);


document.addEventListener('DOMContentLoaded', function() {
  const loadEl = document.querySelector('#load');
  // // 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
  // // The Firebase SDK is initialized and available here!
  //
  // firebase.auth().onAuthStateChanged(user => { });
  // firebase.database().ref('/path/to/ref').on('value', snapshot => { });
  firebase.firestore().doc('/baclklist').get().then((data) => {
    console.log(data);
  });
  // firebase.functions().httpsCallable('yourFunction')().then(() => { });
  // firebase.messaging().requestPermission().then(() => { });
  // firebase.storage().ref('/path/to/ref').getDownloadURL().then(() => { });
  // firebase.analytics(); // call to activate
  // firebase.analytics().logEvent('tutorial_completed');
  // firebase.performance(); // call to activate
  //
  // // 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

  try {
    let app = firebase.app();
    let features = [
      'auth',
      'database',
      'firestore',
      'functions',
      'messaging',
      'storage',
      'analytics',
      'remoteConfig',
      'performance',
    ].filter(feature => typeof app[feature] === 'function');
    loadEl.textContent = `Firebase SDK loaded with ${features.join(', ')}`;
  } catch (e) {
    console.error(e);
    loadEl.textContent = 'Error loading the Firebase SDK, check the console.';
  }
});