refactor(nitro): use nitro v3 functionRules workflow routes#1575
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RihanArfan wants to merge 6 commits intomainfrom
Open
refactor(nitro): use nitro v3 functionRules workflow routes#1575RihanArfan wants to merge 6 commits intomainfrom
functionRules workflow routes#1575RihanArfan wants to merge 6 commits intomainfrom
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pi0
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Apr 2, 2026
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📊 Benchmark Results
workflow with no steps💻 Local Development
▲ Production (Vercel)
workflow with 1 step💻 Local Development
▲ Production (Vercel)
workflow with 10 sequential steps💻 Local Development
▲ Production (Vercel)
workflow with 25 sequential steps💻 Local Development
▲ Production (Vercel)
workflow with 50 sequential steps💻 Local Development
▲ Production (Vercel)
Promise.all with 10 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.all with 25 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.all with 50 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.race with 10 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.race with 25 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.race with 50 concurrent steps💻 Local Development
▲ Production (Vercel)
workflow with 10 sequential data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 25 sequential data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 50 sequential data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 10 concurrent data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 25 concurrent data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 50 concurrent data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
Stream Benchmarks (includes TTFB metrics)workflow with stream💻 Local Development
▲ Production (Vercel)
stream pipeline with 5 transform steps (1MB)💻 Local Development
▲ Production (Vercel)
10 parallel streams (1MB each)💻 Local Development
▲ Production (Vercel)
fan-out fan-in 10 streams (1MB each)💻 Local Development
▲ Production (Vercel)
SummaryFastest Framework by WorldWinner determined by most benchmark wins
Fastest World by FrameworkWinner determined by most benchmark wins
Column Definitions
Worlds:
❌ Some benchmark jobs failed:
Check the workflow run for details. |
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🧪 E2E Test Results❌ Some tests failed Summary
❌ Failed Tests▲ Vercel Production (2 failed)fastify (2 failed):
🐘 Local Postgres (2 failed)nextjs-turbopack-stable-lazy-discovery-disabled (1 failed):
nextjs-turbopack-stable-lazy-discovery-enabled (1 failed):
Details by Category❌ ▲ Vercel Production
✅ 💻 Local Development
✅ 📦 Local Production
❌ 🐘 Local Postgres
✅ 🪟 Windows
✅ 📋 Other
❌ Some E2E test jobs failed:
Check the workflow run for details. |
RihanArfan
changed the title
functionRules for workflow routesfunctionRules workflow routes
RihanArfan
changed the title
functionRules workflow routesfunctionRules workflow routes
![vercel[bot]](https://avatars.githubusercontent.com/in/8329?s=60&v=4){kind=small}
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@vercel/workflow |
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VaguelySerious
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You probably know better than me whether the nits apply, so use your judgement there. Happy to approve this once the e2e tests are running again and CI is green
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AI review: blocking issues found
| * Extra esbuild options merged into every bundle this builder produces | ||
| * (steps, intermediate workflow, final workflow wrapper, webhook). | ||
| */ | ||
| esbuildOptions?: Partial<BuildOptions>; |
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AI Review: Nit
esbuildOptions: Partial<BuildOptions> is a broad surface for one knob
The new field accepts the full esbuild BuildOptions and is spread into four bundle calls with very different needs (steps: node/esm, workflow VM: neutral/cjs, webhook: node/esm, final wrapper: node/esm). The current spread order puts user options first so builder-required options like platform, format, bundle, plugins win — that's defensive — but the API still implies "you can pass any esbuild option" when in practice almost everything that matters is overridden.
Given the only consumer is sourcesContent: false, consider either narrowing the public type to a small allowlist or naming the field something closer to its actual purpose. Not blocking, but the surface area will be hard to take back later.
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Seems like tests are still failing, please re-ping me when they pass 👋 |
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Description
Currently we separately build the Workflows functions for the Vercel Build Output API when deploying a Nitro app to Vercel. This means the Workflows routes aren't part of the Nitro bundle.
This PR changes to now handle the Workflows routes as handlers within Nitro v3. Nitro v2 is untouched.
How did you test your changes?
Locally ran
nitro devin thenitro-v3workspace and visited the API routePOST /api/test-direct-step-call.PR Checklist - Required to merge
pnpm changesetwas run to create a changelog for this PRpnpm changeset --emptyif you are changing documentation or workbench appsgit commit --signoffon your commits)@vercel/workflowin a comment once the PR is ready, and the above checklist is complete