Learning firebase

firebase.js

import firebase from 'firebase';
firebase.initializeApp({
  serviceAccount: `${__dirname}/../../server/config/firebase.json`,
  databaseURL: 'https://pontuali-dev.firebaseio.com/',
});
const db = firebase.database();
const dataRef = db.ref('/data');
dataRef.on('child_added', (snapshot) => {
  console.log('addedded, child', snapshot.val());
});
console.log('dataRef', dataRef);

(async () => {
  const allData = (await dataRef.child('new').once('value')).val();
  console.log('allData', allData);
})();

// writing data

const blogRef = db.ref('data/saving-data/fireblog');
const usersRef = blogRef.child('users');
usersRef.set({
  alanisawesome: {
    date_of_birth: 'June 23, 1912',
    full_name: 'Alan Turing',
  },
  gracehop: {
    age: 24,
  },
});

usersRef.child('gracehop').set({
  date_of_birth: 'December 9, 1906',
  full_name: 'Grace Hopper',
  age: 27,
});

usersRef.child('gracehop/childs/1/updating').set({ age: 1 });

const hopperRef = usersRef.child('gracehop/childs/1/updating');
hopperRef.update({
  nickname: 'Amazing Grace',
});

const postsRef = blogRef.child('posts');
postsRef.push().set({
  author: 'alanisawesome',
  title: 'The Turing Machine',
});
postsRef.push({
  author: 'eilanhe1amazing',
  title: 'The Turing Machine',
});

blogRef.on('value', (snapshot) => {
  console.log('blogRef on value', snapshot.val());
}, (errorObject) => {
  console.log(`The read failed: ${errorObject.code}`);
});

// reading

postsRef.orderByChild('status').equalTo(null).on('child_added', (snap) => {
  console.log('by status null', snap.val(), snap);
  postsRef.child(snap.key).update({
    status: true,
  });
});

export default db;