fix: cap looney-check function maxDuration at hobby limit - #78
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📝 WalkthroughWalkthroughThe API route now uses a 55-second timeout for upstream job creation. Its maximum execution duration is reduced from 300 seconds to 60 seconds. The route documents remote-file audio inspection before returning a job ID. ChangesUpstream timeout alignment
Estimated code review effort: 1 (Trivial) | ~5 minutes Merge Risk: 🟠 High · up to Although the change fixes the Hobby-plan duration configuration, it can prematurely terminate long-running event streams and leave too little time to complete cleanup after an upstream timeout. These are concrete user-facing and production risks that should be addressed before merging. Poem
🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
🧪 Generate unit tests (beta)
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In `@api/looney-check.js`:
- Line 239: Update the SSE handling around proxyJobEvents so GET requests with
stream=1 are not limited by maxDuration: 60; route streaming requests to a
compatible-duration endpoint or implement resumable polling, while preserving
the existing 300-second stream behavior.
- Around line 288-289: Adjust the timeout used by the upstream job-creation
request in the route’s AbortSignal.timeout call to leave sufficient time within
the 60-second invocation budget for request setup, response parsing, and
releaseRateLimit cleanup; preserve the existing request behavior while ensuring
cleanup can complete before the invocation is terminated.
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api/looney-check.js
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Greptile SummaryThe endpoint reduces its function duration to 60 seconds and calculates the job-creation request timeout from a request-wide deadline. The quota-release operation can still begin too late: under delayed parsing and quota work, a failed upstream request leaves only enough time for cleanup to finish after the hosting platform’s execution limit. A user can therefore lose a daily check allowance even though no job was created. Confidence Score: 4/5Not ready to merge until failed job creation reliably releases the reserved daily allowance before the function deadline. One verified reliability failure remains in the job-creation failure path: quota cleanup can finish after the 60-second execution limit, so failed requests can remain charged. Files Needing Attention: api/looney-check.js
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| const MAX_UPLOAD_BYTES = 50 * 1024 * 1024; | ||
| const DEFAULT_LOONEY_URL = 'https://looney.codersoft.xyz/check'; | ||
| const DAILY_CHECK_LIMIT = 5; | ||
| const UPSTREAM_JOB_CREATE_TIMEOUT_MS = 55000; |
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The 55-second timeout starts only after request parsing, authentication, and the quota-reservation RPC, while the function has a 60-second total execution limit. If those earlier operations take more than roughly five seconds, the platform can terminate the request before the fetch abort handler runs releaseRateLimit. No job is created, but the user's daily reservation remains consumed. Budget the upstream request against a request-wide deadline and reserve enough time for cleanup, or make reservations expire transactionally when a request is interrupted.
Artifacts
Deterministic handler timing harness source
- The executable source imports the real handler, stubs Supabase and upstream fetches, and models the timeout/deadline sequence to prove the cleanup timing path.
Captured deterministic handler timing harness source
- The command capture records the exact harness source that was executed, demonstrating that the real handler invocation and deadline-aware Supabase stubs were used.
Handler timing test output showing release after deadline
- The executed output records a control release before the deadline and a delayed path whose abort and release occur after the modeled deadline, confirming the consumed quota can remain unreleased.
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Fixed in 90a6e21: replaced the fixed 55s timeout with a request-wide INVOCATION_BUDGET_MS (50s) deadline computed before request parsing/authentication. The upstream fetch is bounded by the remaining budget, so even with slow setup, the abort handler has guaranteed room to run releaseRateLimit before Vercel terminates the invocation at 60s.
maxDuration: 60 caps the whole invocation, but a fixed 55s upstream timeout counted from after request parsing + quota RPC could push the total past 60s, letting the platform terminate the invocation before releaseRateLimit runs and consuming the user's daily quota with no job created. Track a request-wide 50s budget and derive the upstream fetch timeout from the remaining budget so cleanup always fits inside the cap.
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Vercel build was failing on the hobby plan because
api/looney-check.jsdeclaredmaxDuration: 300, but the hobby plan caps Serverless Functions at 60s.Why this is safe (verified live):
job_idin ~2.5s even for remote file URLs — the upstream is async (status: queued). Well within 60s.src/utils/looneyChecker.tsstreamLooneyJob→waitForTerminalJob.Changes:
maxDurationto 60 (hobby max).Verified with
pnpm run build(passes).