Mongoose

Mongoose is a popular Object Data Modeling (ODM) library for Node.js and MongoDB. It provides a straight-forward, schema-based solution to model your application data and provides a number of powerful features to help you interact with your data in MongoDB.

Installation

You can install Mongoose using npm:

npm install mongoose

Usage

To use Mongoose in your Node.js application, you first need to import it:

import mongoose from "mongoose"

Next, you need to connect to your MongoDB database:

mongoose.connect("mongodb+srv://USERNAME:PASSWORD@USERNAME-cluster.qbfd8ay.mongodb.net/DB_NAME");

Now you can define your data model using a schema:

const userSchema = new mongoose.Schema({
  name: String,
  age: Number,
  email: String,
  password: String
});

Once you have defined your schema, you can create a model for it:

const User = mongoose.model('User', userSchema);

Now you can use the model to interact with your data in MongoDB:

const user = new User({
  name: 'John Doe',
  age: 28,
  email: 'john.doe@example.com',
  password: 'password123'
});

user.save((err, user) => {
  if (err) throw err;
  console.log('User saved successfully!');
});

Features

Mongoose provides a number of powerful features to help you interact with your data in MongoDB:

• Schema-based data modeling
• Built-in type casting
• Validation of data before saving to the database
• Query building and execution
• Middleware support (pre and post hooks)
• Plugins support
• Virtual properties
• Transactions
• Aggregation

Conclusion

Mongoose is a powerful ODM library that makes it easy to model your application data and interact with your data in MongoDB. With its powerful features and straightforward API, it is a popular choice for Node.js developers working with MongoDB.