@firebase/database-compat

Real-time Data Synchronization

This feature allows you to synchronize data in real-time. Any changes in the database are automatically and instantly reflected to all connected clients.

const { initializeApp } = require('firebase/app');
const { getDatabase, ref, onValue } = require('@firebase/database-compat');

const app = initializeApp({ /* your config */ });
const db = getDatabase(app);
const dbRef = ref(db, 'path/to/data');
onValue(dbRef, (snapshot) => {
  console.log(snapshot.val());
});

Data Retrieval

This feature allows you to retrieve data once without setting up a continuous listener. It's useful for fetching data at a specific moment.

const { getDatabase, ref, get } = require('@firebase/database-compat');

const db = getDatabase();
const dbRef = ref(db, 'path/to/data');
get(dbRef).then((snapshot) => {
  if (snapshot.exists()) {
    console.log(snapshot.val());
  } else {
    console.log('No data available');
  }
}).catch((error) => {
  console.error(error);
});

Write and Update Data

This feature allows you to write new data or update existing data at a specified path in the database.

const { getDatabase, ref, set, update } = require('@firebase/database-compat');

const db = getDatabase();
const dbRef = ref(db, 'path/to/data');
set(dbRef, { key: 'value' });
update(dbRef, { updatedKey: 'updatedValue' });