Node.js Auth API Development

Sunil Kumar rao s

Backend Engineer

ExpressJS

MongoDB

Node.js

Electronics

Node.js Auth API

A secure RESTful API built with Node.js, Express, MongoDB, and JWT for user authentication. This project demonstrates backend fundamentals like user registration, login, protected routes, and token-based access control.

🔧 Tech Stack

Node.js

Express.js

MongoDB & Mongoose

JWT (JSON Web Token)

bcryptjs

dotenv

📁 Features

✅ User registration (/api/auth/register)

✅ User login with hashed passwords

✅ JWT-based token authentication

✅ Protected route (/api/auth/profile)

✅ Modular structure (routes, controllers, models)

✅ MongoDB connection via Mongoose

🛠️ Installation

# 1. Clone the repository
git clone https://github.com/YOUR_USERNAME/node-auth-api.git

# 2. Navigate into the project
cd node-auth-api

# 3. Install dependencies
npm install

# 4. Create .env file
touch .env

.env Configuration

PORT=5000
MONGO_URI=mongodb://localhost:27017/nodeauth
JWT_SECRET=your_secret_key

Running the API

Start in development mode

npm run dev

OR

Start in production mode

node server.js

📮 API Endpoints

Method Route Description Access POST /api/auth/register Register a new user Public POST /api/auth/login Login & get token Public GET /api/auth/profile Get user profile Protected

🔐 Example Auth Header

Authorization: Bearer <your_token>

📬 Contact Built with ❤️ by Sunil Kumar Rao S

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Posted Oct 8, 2025

Built a secure RESTful API for user authentication using Node.js and Express.

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