Topic Overview and Introduction

Hello! Today, we're unraveling a cornerstone of web application security - User Authentication. User Authentication involves verifying user identities during login attempts. By correctly implementing User Authentication, you can significantly protect your applications from unauthorized access and potential security threats. Our toolkit for today includes Node.js and Express.js for crafting our server-side application, and MongoDB with Mongoose for managing our users' data.

Creating User Models with MongoDB and Mongoose

Next, we'll delve into MongoDB, a powerful NoSQL database, and Mongoose, a MongoDB object modeling tool designed to work in an asynchronous environment. They'll assist us in storing and managing user data in a structured manner.

Let's dive straight in and create a User Model, comprising username and password attributes:

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