# MongoDB with Node.js

## Introduction

In this task, we connect MongoDB with Node.js to perform database operations using JavaScript.
This allows building dynamic backend applications.

---

## Install Required Package

```bash
npm init -y
npm install mongodb
```

---

## Connect to MongoDB

```js
const { MongoClient } = require('mongodb');

const url = 'mongodb://127.0.0.1:27017';
const client = new MongoClient(url);

async function connectDB() {
  try {
    await client.connect();
    console.log("Connected to MongoDB");
  } catch (error) {
    console.error(error);
  }
}

connectDB();
```

---

## Access Database and Collection

```js
const db = client.db('studentDB');
const collection = db.collection('students');
```

---

## Insert Data

```js
await collection.insertOne({
  name: "Rahul",
  course: "MCA"
});
```

---

## Fetch Data

```js
const data = await collection.find().toArray();
console.log(data);
```

---

## Update Data

```js
await collection.updateOne(
  { name: "Rahul" },
  { $set: { course: "MBA" } }
);
```

---

## Delete Data

```js
await collection.deleteOne({ name: "Rahul" });
```

---

## Project Structure

```
project/
│
├── node_modules/
├── app.js
├── package.json
```

---

## Run the Application

```bash
node app.js
```