This directory contains the server-side code for the Tweet Metrics Tracker application.

• index.ts - Main entry point for the HTTP API
• cron.ts - Cron job for periodically fetching and updating tweets
• database/ - Database schema and queries
• routes/ - API routes and static file serving
• services/ - External API integrations (Twitter API)

• GET /api/tweets - Get tweets with pagination
• GET /api/tweets/:id - Get a single tweet by ID
• GET /api/tweets/:id/metrics - Get metrics history for a tweet
• GET /api/top-tweets - Get top tweets by engagement
• GET /api/fetch/:username - Fetch tweets for a specific user
• GET /api/search?q=query - Search tweets by keyword

• TWITTER_API_KEY - Twitter API key
• TWITTER_API_SECRET - Twitter API secret
• TWITTER_BEARER_TOKEN - Twitter bearer token