QR Code based Authentication System

A QR code authentication system built with Node.js, Express, and MongoDB. It allows users to generate a QR code for login and verifies the QR token to authenticate and log in the user.

Features

• User registration and login
• QR code generation for login
• QR token verification for authentication
• MongoDB for data storage

Installation

1. Clone the repository:

$ git clone https://github.com/Dev-29/elytra.git

2. Install dependencies:

npm install

3. Set up environment variables:

• Create a .env file the root directory of the project.the root directory of the project.
• Add the following environment variables to the .env file:
• PORT=3000
• MONGODB_URI=mongodb://localhost:27017/qr_auth
• JWT_SECRET=your-secret-key

Usage

1. Start the mongod service:

mongod

2. Start the server:

npm start

3. Open postman tool
4. Generate QR code: Send a POST request to 'localhost:3000/auth/login':

{
	"email": "example@gmail.com
}

The response will contain a qrCodeUrl field with the URL of the generated QR code.

5. Verify the QR code:

{
	"qrToken": "<QR-TOKEN>"
}

Replace <QR_TOKEN> with the value of the QR token displayed in the generated QR code.

• If the QR token is valid, you will receive a response with a success message indicating that the user is logged in.