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A comprehensive REST API that provides access to both LeetCode and CodeChef data. Get user profiles, problem details, contest information, ratings, and more from both platforms!

• LeetCode Data: User profiles, badges, solved problems, contest history, submissions
• CodeChef Data: User profiles, ratings, rankings, contest statistics (returns 0 if no contests)
• Problem Data: Daily questions, problem lists with filtering, detailed problem info
• Discussion Data: Trending discussions, topics, and comments
• Advanced Features: Rate limiting, error handling, CORS support, compression

# Clone the repositorygit clone<your-repo-url>cd leetcode-api# Install dependenciesnpm install# Start the servernpm start# For development with auto-reloadnpm run dev

The API will be available athttp://localhost:3000

All endpoints return data in a consistent format:

{"success":true,"message":"Data retrieved successfully","data": {...},"timestamp":"2024-01-01T12:00:00.000Z"}

{"success":false,"message":"Error description","timestamp":"2024-01-01T12:00:00.000Z"}

• limit: Number of problems to return (max 100, default 20)
• skip: Number of problems to skip (default 0)
• tags: Filter by tags (use + to separate multiple tags)
• difficulty: Filter by difficulty (EASY, MEDIUM, HARD)

# Get user profilecurl http://localhost:3000/john_doe# Get daily questioncurl http://localhost:3000/daily# Get 10 easy array problemscurl"http://localhost:3000/problems?difficulty=EASY&tags=array&limit=10"# Get trending discussionscurl"http://localhost:3000/trendingDiscuss?first=5"

• 100 requests per 15 minutes per IP address
• Rate limit headers included in responses:
  • X-RateLimit-Limit: Request limit
  • X-RateLimit-Remaining: Remaining requests
  • X-RateLimit-Reset: Reset time

Create a.env file for configuration:

PORT=3000NODE_ENV=development

The API includes comprehensive error handling for:

• Invalid usernames
• Non-existent users
• Malformed requests
• Rate limiting
• Network errors
• GraphQL errors

• Node.js - Runtime environment
• Express.js - Web framework
• Axios - HTTP client for GraphQL requests
• CORS - Cross-origin resource sharing
• Helmet - Security headers
• Compression - Response compression

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

MIT License - see LICENSE file for details

For issues and questions:

• Create an issue on GitHub
• Check the API documentation athttp://localhost:3000/
• Verify your requests match the expected format

• Initial release with all LeetCode API endpoints
• User profile and statistics
• Problem data and daily questions
• Discussion and trending topics
• Rate limiting and error handling