Node.js User Management API

A production-ready RESTful backend API built with Node.js, Express, and MongoDB to manage user data efficiently.

Features

• Full CRUD operations: Create, Read (all/single), Update (full/partial), and Delete.
• Advanced Querying: Built-in support for Pagination, Filtering, and Sorting.
• Global Error Handling: Centralized error responses for consistent API behavior.
• Security: Implements helmet for secure HTTP headers.
• Logging: Integrated morgan for HTTP request logging.
• CORS Support: Cross-Origin Resource Sharing enabled.

Tech Stack

• Node.js: Runtime environment
• Express.js: Web framework
• MongoDB: Database
• Mongoose: ODM for MongoDB
• Helmet: Security enhancement
• Morgan: HTTP request logger
• dotenv: Environment variable management

API Endpoints

1. User Management

Method	Endpoint	Description
POST	/users	Create a new user
GET	/users	Get all users (supports pagination, filter, search)
GET	/users/:id	Get a single user by ID
PUT	/users/:id	Update full user details
PATCH	/users/:id	Update specific user fields
DELETE	/users/:id	Delete a user

Advanced GET Parameters:

• Search: ?search=krishna (Searches in name and email)
• Filtering: ?gender=male&age[gte]=20
• Sorting: ?sort=name or ?sort=-createdAt (prefix with - for descending)
• Pagination: ?page=1&limit=5

2. General / Health Check

• GET /: Health check and basic API info.

Example Request Body (POST/PUT/PATCH)

{
  "name": "Krishna",
  "email": "krishna@gmail.com",
  "age": 21,
  "gender": "male"
}

Installation

1. Clone the repository:

   git clone https://github.com/Prajapati-Krishna18/nodejs-user-management-api.git
   cd nodejs-user-management-api

2. Install dependencies:

   npm install

3. Configure Environment Variables: Create a .env file in the root directory and add:

   PORT=5000
   MONGO_URI=your_mongodb_connection_string
   NODE_ENV=development

4. Run the application:

   • Production: npm start
   • Development: npm run dev

Deployment

To deploy this API to Render:

1. Create a New Web Service: Connect your GitHub repository.
2. Configure Build & Start Commands:
   • Build Command: npm install
   • Start Command: npm start
3. Set Environment Variables:
   • MONGO_URI: Your MongoDB Atlas connection string.
   • NODE_ENV: production
   • PORT: 10000 (Render default).