jcorpac Cloud Firestore
Purpose
Leverage Cloud Firestore for a flexible, scalable NoSQL database. This skill covers data structure best practices, real-time listeners, and performing CRUD operations.
Usage
1. Add Data
import { doc, setDoc } from "firebase/firestore";
await setDoc(doc(db, "cities", "LA"), {
name: "Los Angeles",
state: "CA",
country: "USA"
});
2. Read Data (One-time)
import { doc, getDoc } from "firebase/firestore";
const docRef = doc(db, "cities", "SF");
const docSnap = await getDoc(docRef);
if (docSnap.exists()) {
console.log("Document data:", docSnap.data());
} else {
console.log("No such document!");
}
3. Real-time Listeners
import { doc, onSnapshot } from "firebase/firestore";
const unsub = onSnapshot(doc(db, "cities", "SF"), (doc) => {
console.log("Current data: ", doc.data());
});