Course Management API

A robust backend API for managing online courses, handling both admin and user operations. Built with Express.js and MongoDB, this API provides secure authentication and comprehensive course management features.

Features

Admin Operations

• Authentication

  • Secure signup with email validation
  • JWT-based signin system
  • Protected routes with admin authentication

• Course Management

  • Create new courses with detailed information
  • Update existing course details
  • View all courses created by the admin
  • Input validation for course data

User Operations

• Authentication

  • User signup with email validation
  • Secure signin with JWT tokens
  • Protected user routes

• Course Access

  • Browse available courses
  • Purchase courses
  • View purchased courses
  • Track course enrollment history

Technology Stack

• Node.js
• Express.js
• MongoDB (with Mongoose)
• bcrypt for password hashing
• JWT for authentication
• Zod for input validation

API Endpoints

Admin Routes

POST /admin/signup
POST /admin/signin
POST /admin/course
PUT /admin/course
GET /admin/course/bulk

User Routes

POST /user/signup
POST /user/signin
GET /user/purchases

Course Routes

POST /course/purchase
GET /course/preview

Installation

1. Clone the repository:

   git clone https://github.com/govindup63/coursera-backend.git

2. Install dependencies:

   cd coursera-backend
   npm install

3. Set up environment variables:

   JWT_ADMIN_SECRET=your_admin_secret
   JWT_USER_SECRET=your_user_secret
   MONGODB_URI=your_mongodb_connection_string

4. Start the server:

   npm start

API Usage

Admin Authentication

// Admin Signup
POST /admin/signup
{
    "firstName": "string",
    "lastName": "string",
    "email": "[email protected]",
    "password": "string"
}

// Admin Signin
POST /admin/signin
{
    "email": "[email protected]",
    "password": "string"
}

Course Management

// Create Course
POST /admin/course
{
    "title": "string",
    "description": "string",
    "price": number,
    "imageUrl": "string"
}

// Update Course
PUT /admin/course
{
    "courseId": "string",
    "title": "string",
    "description": "string",
    "price": number,
    "imageUrl": "string"
}

User Operations

// User Signup
POST /user/signup
{
    "firstName": "string",
    "lastName": "string",
    "email": "[email protected]",
    "password": "string"
}

// Purchase Course
POST /course/purchase
{
    "courseId": "string"
}

Security Features

• Password hashing using bcrypt
• JWT-based authentication
• Input validation using Zod
• Protected routes with middleware authentication
• Separate JWT secrets for admin and user authentication

Error Handling

The API includes comprehensive error handling for:

• Invalid input validation
• Authentication failures
• Database operation errors
• Course creation and update errors
• Purchase verification

Contributing

Feel free to submit issues and pull requests to improve the API.

License

This project is licensed under the MIT License - see the LICENSE file for details.