URL Shortener

A simple URL shortener service built with Express.js, SQLite, and Zod for validation.

Features

• Shorten long URLs to unique short codes
• Validate URLs using Zod
• In-memory SQLite database
• Modern UI with error handling
• TypeScript support

Setup

1. Install dependencies:

npm install

2. Start the server:

# Development mode with auto-reload
npm run dev

# Production mode
npm start

3. Open http://localhost:3000 in your browser

API Endpoints

• POST /shorten

  • Body: { "originalUrl": "https://example.com" }
  • Returns: { "shortUrl": "abc123" }

• GET /:shortUrl

  • Redirects to the original URL
  • Returns 404 if URL not found

Development

The project uses:

• Express.js for the server
• SQLite for data storage
• Zod for validation
• TypeScript for type definitions

Deployment

See nginx.conf and url-shortener.service for inspiration on deployment config.