The Serwist createSerwistRoute factory returns a GET handler with
`params: Promise<{ path: string }>` hardcoded. Next.js infers the
param shape from the directory name — so the directory MUST be
named `[path]` (single segment) for the type to match.
`[[...slug]]` (catch-all) was wrong on two counts:
1. The segment name is `slug`, not `path` (Serwist expects
exactly `path`).
2. The shape is `string[]` (array), not `string` (Serwist
expects a single string).
Per the Serwist source comment: 'Asset and chunk names must be at
the top, as our path is /serwist/[path], not /serwist/[...path]'
— all SW output files (sw.js, workbox-XXX.js) are flat, single
segment is sufficient.
The fix is a directory rename only — the route.ts content
(createSerwistRoute call) is unchanged.
Verification:
- pnpm build now succeeds (TypeScript check passes)
- The Serwist route appears in the build output as `● /serwist/[path]`
prerendered with `sw.js` and `sw.js.map` static pages
- `pnpm start` + Chrome: `/serwist/sw.js` will be served by the
route handler and registered by <SerwistProvider>
Next.js 16 ships Turbopack as the default bundler, but
@ducanh2912/next-pwa is webpack-only — the previous PWA setup
required `--webpack` on dev/build/"dev:proxy" scripts, accepting
a perf regression in exchange for working PWA install.
@serwist/turbopack (paired with the official 'serwist' package
and 'esbuild') is the Turbopack-native successor: it works with
the default bundler, no opt-out flag, and gives us a real TS
service worker source file we can read and edit.
What this commit does:
1. Swap deps in package.json:
- Remove @ducanh2912/next-pwa
- Add @serwist/turbopack, serwist, esbuild (all devDeps)
- Drop --webpack flag from dev / dev:proxy / build scripts
(Turbopack is restored as the bundler)
2. next.config.ts:
- Replace withPWAInit wrapping with withSerwist named import
- Update comment block to describe new architecture
3. New src/app/sw.ts: Serwist service worker source.
skipWaiting + clientsClaim + navigationPreload + defaultCache.
This file is compiled to a real SW at build time by Serwist.
4. New src/app/serwist/[[...slug]]/route.ts: catch-all Route
Handler that serves the compiled SW at /serwist/sw.js plus
Serwist's chunked runtime assets. Catch-all is required
because Serwist serves multiple files under /serwist/.
5. src/app/layout.tsx: replace <SwRegister /> with
<SerwistProvider swUrl="/serwist/sw.js"> from
@serwist/turbopack/react. The provider handles registration
+ lifecycle internally.
6. Delete src/app/_components/core/sw-register.tsx: replaced
by SerwistProvider.
7. .gitignore: add public/sw.js and public/workbox-*.js
(defensive — these are build artifacts that change hash
every build and shouldn't be committed).
8. Untrack public/workbox-3c9d0171.js: stale workbox runtime
from the previous next-pwa build, hash is build-specific
so it can never be regenerated correctly.
Not modified (intentionally):
- src/utils/pwa.ts: pure beforeinstallprompt browser-API wrapper,
library-agnostic, stays as-is.
- pwa-install-overlay / pwa-install-dialog: install UI flow
unchanged.
- public/manifest.json: still works; layout's metadata.manifest
points at it.
Verification:
- pnpm install resolved cleanly (added 24 pkgs, removed 209)
- npx tsc --noEmit passes (EXIT=0)
- Serwist provides named exports, not default — withSerwist and
createSerwistRoute are both named imports
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