Firebase (Firestore & Realtime Database)

Firebase provides two NoSQL databases:

1. Cloud Firestore: The newer, recommended scalable database.
2. Realtime Database: The original low-latency JSON tree sync.

When to Use

• Mobile Apps: Best-in-class integration with Android/iOS/Flutter.
• Realtime Sync: Chat apps, live dashboards.
• Offline Support: Outstanding offline SDK capabilities.

Quick Start (Firestore)

import { getFirestore, collection, addDoc } from "firebase/firestore";

const db = getFirestore(app);