ECC/docker/context-profiles/complex-eval/cases3/chained-tickets/files/API.md

Shortlink API

• POST /links — body { "url": string, "ttlSeconds"?: number }.
  • 201 → { "code", "shortUrl", "expiresAt" }. code is 6–10 alphanumeric characters; shortUrl is /<code>; expiresAt is an ISO timestamp. Default TTL is 7 days; ttlSeconds must be an integer between 1 and 2592000 (30 days).
  • Missing/invalid url or out-of-range ttlSeconds → 400.
• GET /<code> — 302 with Location set to the original URL. Unknown code → 404. Expired link → 410.
• DELETE /links/<code> — 204. Unknown code → 404.

All error responses follow the envelope in CONTRIBUTING.md.