Contact Manager Backend

A project built with Node.js, Express, and MongoDB to manage contacts with CRUD operations and user authentication.

Tech Stack

• Node.js
• Express.js
• MongoDB & Mongoose
• JWT for Authentication
• Nodemon – Watches files & restarts server on save.
• Thunder Client – For testing API endpoints.

Features

• REST API for managing contacts.
• User registration and login with JWT authentication.
• CRUD operations for contacts.
• Modular and scalable backend structure.

Getting Started

Prerequisites

• Node.js (v16 or later)
• MongoDB (local or Atlas cloud)
• npm or yarn

Installation

1. Clone the repository:

   git clone https://github.com/your-username/contact-manager-backend.git
   

2. Navigate into the project directory:

   cd contact-manager-backend
   

3. Install dependencies:

   npm install
   

4. Create a .env file in the root and add:

   PORT=5001
   MONGO_URI=your_mongo_connection_string
   JWT_SECRET=your_secret_key
   

5. Start the development server:

   npm run dev

   or directly with Nodemon:

   nodemon server.js

API Endpoints

User Routes

• POST /api/users/register – Register a new user
• POST /api/users/login – Login and get JWT token

Contact Routes

• GET /api/contacts – Get all contacts
• POST /api/contacts – Add a contact
• GET /api/contacts/:id – Get a single contact
• PUT /api/contacts/:id – Update a contact
• DELETE /api/contacts/:id – Delete a contact

Testing

Use Thunder Client (VS Code Extension) or Postman to test API routes.