A simple HTTP API that returns the top track for the most recent week from Last.fm.

• lastfm.ts - HTTP endpoint that fetches and returns the top track from the past 7 days
• main.ts - Empty placeholder file

Returns the most played track for user "pinjasaur" from the past 7 days.

Response Format:

{
  "track": {
    "name": "Track Name",
    "artist": "Artist Name", 
    "playcount": 42,
    "url": "https://www.last.fm/music/Artist/_/Track",
    "image": "https://lastfm.freetls.fastly.net/i/u/300x300/image.png"
  },
  "period": {
    "from": "2026-01-09T16:50:28.000Z",
    "to": "2026-01-16T16:50:28.000Z"
  },
  "user": "pinjasaur"
}

Error Responses:

• 500 - API key not configured or Last.fm API error
• 404 - No tracks found for the past week

Requires the LAST_FM_API_KEY environment variable to be set with a valid Last.fm API key.

• Uses Last.fm's predefined "7day" period for better reliability
• Falls back to custom date range if needed
• Returns the largest available album artwork
• Includes caching headers (1 hour cache)
• Proper error handling and TypeScript types