database.js

const { MongoClient } = require("mongodb");
const url =
  "mongodb+srv://hamzaakramkhan97:wrOe5956U9A8dnbK@nodejs.tfb8l.mongodb.net/?retryWrites=true&w=majority&appName=Nodejs";
const client = new MongoClient(url);

const dbName = "Firstdb";

async function main() {
  await client.connect();
  console.log("Connected successfully");
  const db = client.db(dbName);
  const collection = db.collection("User");

  // Read document
  const findResult = await collection.find({}).toArray();
  console.log("Found documents =>", findResult);

  const user = {
    firstname: "Ali",
    lastname: "Khan",
    city: "Karahi",
    country: "Pakistan",
    phone: "923123123123",
  };
  // Insert document
  // const insertResult = await collection.insertOne(user);
  // console.log("Inserted documents =>", insertResult);
  // return "done";

  //update document
  // const updateResult = await collection.updateOne(
  //   { firstname: "Ali" },
  //   { $set: { firstname: "Asad" } }
  // );
  // console.log("Updated documents =>", updateResult);

  // Remove
  const deleteResult = await collection.deleteMany({ firstname: "Asad" });
  console.log("Deleted documents =>", deleteResult);
}

main()
  .then(console.log)
  .catch(console.error)
  .finally(() => client.close());