Firebase Firestore x ExpressJS

sample-app.js

import { initializeApp } from "firebase/app";
import e from "express";
import {getDocs, getDoc, doc, setDoc, collection, getFirestore, query, where} from "firebase/firestore";
// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries

// Your web app's Firebase configuration
// For Firebase JS SDK v7.20.0 and later, measurementId is optional
const firebaseConfig = {
  apiKey: "",
  authDomain: "",
  projectId: "",
  storageBucket: "",
  messagingSenderId: "",
  appId: "",
  measurementId: ""
};

// express app init
const app = e();


// Initialize Firebase
const fs_app = initializeApp(firebaseConfig);
const db = getFirestore(fs_app);

const users = collection(db, "users");

app.get("/:name", async (req, res) => {
    const _name = req.params.name;
    const q = query(users, where("name", "==", _name)); //creates a query to get all the docs
    const _data = await getDocs(q); //gets all the docs
    const _resp = _data.docs.map(doc => doc.data()); //maps the docs to get the data
    res.send(_resp.length>0?_resp[0]:{}); //sends the first data if it exists else sends an empty object
});

app.listen(3000, () => {
    console.log("Server is running on port 3000");
});