[test] Current behavior for request APIs in `generateStaticParams` by unstubbable · Pull Request #91188 · vercel/next.js

unstubbable · 2026-03-11T11:21:55Z

Adds a dedicated test suite that asserts on the errors thrown when cookies, headers, connection, draftMode, and next/root-params are called inside generateStaticParams. Currently, these all fail because generateStaticParams runs without a work unit store.

Each route is built individually using --debug-build-paths so we can capture and assert on the error for each API independently.

Adds a dedicated test suite that asserts on the errors thrown when `cookies`, `headers`, `connection`, `draftMode`, and `next/root-params` are called inside `generateStaticParams`. Currently, these all fail because `generateStaticParams` runs without a work unit store. Each route is built individually using `--debug-build-paths` so we can capture and assert on the error for each API independently.

unstubbable · 2026-03-11T11:22:09Z

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nextjs-bot · 2026-03-11T11:40:52Z

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✅ No significant changes detected

📊 All Metrics

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Dev Server Metrics:

Listen = TCP port starts accepting connections
First Request = HTTP server returns successful response
Cold = Fresh build (no cache)
Warm = With cached build artifacts

Build Metrics:

Fresh = Clean build (no .next directory)
Cached = With existing .next directory

Change Thresholds:

Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
Size: Changes < 1KB AND < 1% are insignificant
All other changes are flagged to catch regressions

⚡ Dev Server

Metric	Canary	PR	Change	Trend
Cold (Listen)	455ms	455ms	✓	▁▁▁▁▁
Cold (Ready in log)	436ms	435ms	✓	▁▁▁▁▂
Cold (First Request)	1.257s	1.231s	✓	▃▃▂▃▃
Warm (Listen)	457ms	456ms	✓	▁▁▁▁▁
Warm (Ready in log)	440ms	440ms	✓	▁▁▁▁▁
Warm (First Request)	343ms	344ms	✓	▁▂▁▁▁

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	455ms	456ms	✓	▁▅▁▁▁
Cold (Ready in log)	437ms	438ms	✓	▃▄▃▃▁
Cold (First Request)	1.929s	1.948s	✓	▂▃▂▂▁
Warm (Listen)	456ms	455ms	✓	▁▄▁▁▁
Warm (Ready in log)	437ms	438ms	✓	▃▅▄▃▁
Warm (First Request)	1.939s	1.948s	✓	▃▄▂▂▁

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	3.881s	3.774s	✓	▁▁▂▁▁
Cached Build	3.904s	3.923s	✓	▁▁▂▁▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	14.111s	14.089s	✓	▁▄▁▁▁
Cached Build	14.237s	14.231s	✓	▁▄▁▁▁
node_modules Size	477 MB	477 MB	✓	▁▁▁▁▁

📦 Bundle Sizes

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⚡ Turbopack

Client

Main Bundles: **402 kB** → **402 kB** ⚠️ +23 B

80 files with content-based hashes (individual files not comparable between builds)

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	768 B	766 B	✓
Total	768 B	766 B	✅ -2 B

Build Details

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Total	448 B	452 B	⚠️ +4 B

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page.js gzip	257 kB	257 kB	✓
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edge-runtime..pack.js gzip	842 B	842 B	✓
Total	45.2 kB	45.5 kB	⚠️ +332 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	715 B	718 B	✓
Total	715 B	718 B	⚠️ +3 B

Build Cache

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index.pack gzip	102 kB	103 kB	✓
index.pack.old gzip	103 kB	104 kB	✓
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🔄 Shared (bundler-independent)

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app-page-exp..prod.js gzip	171 kB	171 kB	✓
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app-route-tu...dev.js gzip	70.5 kB	70.5 kB	✓
app-route-tu..prod.js gzip	49.1 kB	49.1 kB	✓
app-route.ru...dev.js gzip	70.5 kB	70.5 kB	✓
app-route.ru..prod.js gzip	49 kB	49 kB	✓
dist_client_...dev.js gzip	324 B	324 B	✓
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pages-turbo....dev.js gzip	52.6 kB	52.6 kB	✓
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pages.runtim...dev.js gzip	52.6 kB	52.6 kB	✓
pages.runtim..prod.js gzip	38.5 kB	38.5 kB	✓
server.runti..prod.js gzip	62 kB	62 kB	✓
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https://vercel-packages.vercel.app/next/commits/52bb89d62e61191af6e3c69dbe6fb1fc7f3a73af/next

nextjs-bot · 2026-03-11T11:44:35Z

Tests Passed

nextjs-bot added created-by: Next.js team PRs by the Next.js team. tests labels Mar 11, 2026

This was referenced Mar 11, 2026

Avoid undefined outer work unit store in "use cache" #91190

Merged

Support accessing root params in generateStaticParams #91189

Merged

Support accessing root params in "use cache" functions #91191

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unstubbable marked this pull request as ready for review March 11, 2026 12:12

unstubbable requested review from eps1lon and lubieowoce March 11, 2026 12:36

eps1lon approved these changes Mar 13, 2026

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unstubbable merged commit 69e2b9d into canary Mar 13, 2026
286 of 288 checks passed

unstubbable deleted the hl/request-apis-generate-static-params branch March 13, 2026 21:37

unstubbable mentioned this pull request Mar 16, 2026

Fix inconsistent cache life/tags propagation for cache handler hits #91454

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[test] Current behavior for request APIs in `generateStaticParams`#91188

[test] Current behavior for request APIs in `generateStaticParams`#91188
unstubbable merged 1 commit intocanaryfrom
hl/request-apis-generate-static-params

unstubbable commented Mar 11, 2026 •

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