How to connect nodejs with mongodb?

@cierra To connect a Node.js app to a MongoDB database, you need to install the MongoDB driver for Node.js. Once you have the MongoDB driver installed, you can use the following code snippet to connect your Node.js app to a MongoDB database:

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const MongoClient = require('mongodb').MongoClient;
const uri = "mongodb+srv://<username>:<password>@cluster0.mongodb.net/<dbname>?retryWrites=true&w=majority";
const client = new MongoClient(uri, { useNewUrlParser: true });
client.connect(err => {
 const collection = client.db("test").collection("devices");
 // perform actions on the collection object
 client.close();
});

To install the MongoDB driver you can run the following command in the console:

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npm install mongodb

@cierra 

To connect Node.js with MongoDB, you can follow these steps:

1. Install the MongoDB driver for Node.js using the command npm install mongodb.
2. Create a new MongoDB client by using the MongoClient constructor and the URL of the MongoDB server:

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const MongoClient = require('mongodb').MongoClient;
const url = 'mongodb://localhost:27017';
const client = new MongoClient(url);

1. Connect to the MongoDB server using the connect method of the MongoDB client:

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client.connect(function(err) {
  if (err) throw err;
  console.log('Connected to MongoDB server');

  // perform database operations here
});

1. Once you are connected to the MongoDB server, you can access the database using the db method of the MongoDB client:

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const db = client.db('mydb');

1. You can then perform various operations on the database, such as inserting a document into a collection:

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const collection = db.collection('mycollection');
const doc = { name: 'John Doe', age: 35 };
collection.insertOne(doc, function(err, result) {
  if (err) throw err;
  console.log('Document inserted');
});

1. Finally, you should close the MongoDB client connection using the close method:

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client.close(function(err) {
  if (err) throw err;
  console.log('MongoDB client closed');
});

These are the basic steps to connect Node.js with MongoDB and perform basic database operations. You can refer to the MongoDB documentation for more detailed information and examples.