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Alaister Young
aedc46c8ad
Per the @vercel/config docs, vercel.ts must expose a named `config` export for Vercel's build pipeline to pick it up. The default export was compiling to a shape Vercel rejected with a misleading "rewrites[0] missing required property source" error.
33 lines
1.7 KiB
TypeScript
33 lines
1.7 KiB
TypeScript
import type { VercelConfig } from '@vercel/config/v1'
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// Vite's `base` bakes the prefix into asset URLs but leaves the filesystem
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// layout at `dist/client/...`. On Vercel we strip the prefix for file lookups
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// and fall through to the SPA shell. When NEXT_PUBLIC_BASE_PATH is empty
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// these rules collapse to identity rewrites plus the shell fallback.
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const basePath = process.env.NEXT_PUBLIC_BASE_PATH ?? ''
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export const config: VercelConfig = {
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framework: null,
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outputDirectory: 'dist/client',
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rewrites: [
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// API + server-function passthrough. Both funnel through the single
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// `/api/server` Vercel Function that TanStack Start generates. These
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// must come before the asset rule so that extensioned API paths like
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// `/api/foo.json` still hit the function instead of a filesystem lookup.
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// The destination is un-prefixed because the function is registered at
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// `/api/server` regardless of the app's base path.
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{ source: `${basePath}/api/(.*)`, destination: '/api/server' },
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{ source: `${basePath}/_serverFn/(.*)`, destination: '/api/server' },
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// Asset passthrough. Matches anything ending in `.ext` (e.g.
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// `/foo/assets/bundle.abc.js`) and rewrites to the un-prefixed path so
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// Vercel finds it in `dist/client/`. If the file doesn't exist Vercel
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// 404s — important, otherwise missing JS would fall through to the
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// shell rule below and the browser would get HTML where JS was
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// expected.
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{ source: `${basePath}/(.*\\.\\w+)`, destination: '/$1' },
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// SPA fallback. Every remaining path (including the base path itself)
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// gets served the prerendered shell, which boots the client router.
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{ source: `${basePath}/(.*)`, destination: '/_shell.html' },
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],
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}
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