rWeb Backend Server

A Node.js/Express backend server for Rohan's website that provides API endpoints for various integrations.

Features

• 🚀 Express Server: Simple and fast web server
• 🔐 Environment Variables: Secure API key management with .env file
• 🌐 CORS Configuration: Properly configured for local development
• 🤖 Gemini API Integration: Proxy endpoint for AI-powered features
• 📊 Health Check: Server status monitoring

Setup

Prerequisites

• Node.js 18+
• npm or yarn

Installation

1. Install dependencies:

npm install

2. Set up environment variables:

cp .env .env.local

3. Edit .env.local and add your API keys:

GEMINI_API_KEY=your_actual_gemini_api_key_here

Development

Start the development server:

npm run dev

Or start in production mode:

npm start

The server will run on http://localhost:3000

API Endpoints

Health Check

• GET /health
• Returns server status and timestamp

Gemini AI Integration

• POST /api/gemini
• Body: { "prompt": "Your prompt here" }
• Returns AI-generated response

Posts (Example)

• GET /api/posts
• Returns blog posts data

Frontend Integration

The frontend (index.html) has been updated to use the backend API instead of making direct API calls. This provides:

• Security: API keys are stored server-side
• CORS Handling: Proper cross-origin request handling
• Error Handling: Centralized error management
• Rate Limiting: Can be easily added to the backend

File Structure

.
├── server.js          # Main Express server
├── package.json       # Project dependencies
├── .env              # Environment variables template
├── .env.local        # Your actual environment variables (create this)
├── main.js           # Frontend JavaScript
├── index.html        # Main HTML file
└── README.md         # This file

Environment Variables

Variable	Description	Required
PORT	Server port (default: 3000)	No
NODE_ENV	Environment mode	No
GEMINI_API_KEY	Google Gemini API key	Yes
CORS_ORIGIN	Allowed CORS origins	No

CORS Configuration

The server is configured to allow requests from:

• http://localhost:3000
• http://127.0.0.1:5500
• http://localhost:5500

You can modify these in the .env file or add more origins as needed.

Usage

1. Start the backend server: npm run dev
2. Open index.html in your browser or serve it with a local server
3. The frontend will automatically connect to the backend API

Security Notes

• Keep your .env.local file secure and never commit it to version control
• The .env file is a template - replace placeholder values with real API keys
• API keys are handled server-side for security

Development vs Production

In development mode (NODE_ENV=development), the server provides detailed error messages. In production, error details are hidden for security.

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Test thoroughly
5. Submit a pull request