Deprecate nested Middleware in favor of root middleware #36772
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Looks good to me but @ijjk should review the routing parts of the server 👍
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| getMiddlewareRegex(middleware, { | ||
| catchAll: !isSSR, | ||
| }) | ||
| )(cleanedAs) | ||
| }) | ||
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| if (!requiresPreflight) { |
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Can the above code/checks all be removed in favor a single flag like process.env.__NEXT_HAS_ROOT_MIDDLEWARE which is set via the webpack config here?
next.js/packages/next/build/webpack-config.ts
Line 1522 in c72d32d
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Since this is a quite big change already I'd love to do that in a follow-up PR if that's ok for you @ijjk WDYT?
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Yeah we can do that in a follow-up 👍
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Co-authored-by: Delba de Oliveira <32464864+delbaoliveira@users.noreply.github.com> Update errors/nested-middleware.md Co-authored-by: Delba de Oliveira <32464864+delbaoliveira@users.noreply.github.com> Update errors/nested-middleware.md Co-authored-by: Delba de Oliveira <32464864+delbaoliveira@users.noreply.github.com> Update errors/nested-middleware.md Co-authored-by: Delba de Oliveira <32464864+delbaoliveira@users.noreply.github.com> Update errors/nested-middleware.md Co-authored-by: Delba de Oliveira <32464864+delbaoliveira@users.noreply.github.com>
Co-authored-by: JJ Kasper <jj@jjsweb.site>
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This was referenced May 30, 2022
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@javivelasco the filename not always starts with “middleware“. Actually, it starts with root directory.
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This PR deprecates declaring a middleware under
pagesin favour of the project root naming it aftermiddlewareinstead of_middleware. This is in the context of having a simpler execution model for middleware and also ships some refactor work. There is a ton of a code to be simplified after this deprecation but I think it is best to do it progressively.With this PR, when in development, we will fail whenever we find a nested middleware but we do not include it in the compiler so if the project is using it, it will no longer work. For production we will fail too so it will not be possible to build and deploy a deprecated middleware. The error points to a page that should also be reviewed as part of documentation.
Aside from the deprecation, this migrates all middleware tests to work with a single middleware. It also splits tests into multiple folders to make them easier to isolate and work with. Finally it ships some small code refactor and simplifications.