post_7

queryData.ts

import { db } from "./firbaseConfig";
import {
  collection,
  getDocs,
  query,
  where,
} from "firebase/firestore";

const queryFirestore = async (name: string) => {
  const objectsRef = collection(db, "test");
  const q = query(objectsRef, where("name", "==", name));

  try {
    const querySnapshot = await getDocs(q);
    if (!querySnapshot.empty) {
      const documentSnapshot = querySnapshot.docs[0];
      const data = documentSnapshot.data();

      console.log("Object searched successfully", data);
    } else {
      console.log("No matching document found.");
    }
  } catch (error) {
    console.error("Error searching object: ", error);
  }
};

queryFirestore("Sung-Jie Hung");

// Output
// Object searched successfully { name: 'Sung-Jie Hung', age: 24, college: 'University of Chicago' }