Can not use node modules in middleware.ts during build

[donnikitos]

Astro Info

Astro                    v5.2.4
Node                     v22.12.0
System                   Linux (x64)
Package Manager          npm
Output                   static
Adapter                  none
Integrations             none

Describe the Bug

When using any node:* module in the middleware the build process with configuration:

{
  output: 'server',
  adapter: vercel({
    edgeMiddleware: true,
  }),
}

fails with:

[build] Waiting for integration "@astrojs/vercel", hook "astro:build:done"...
✘ [ERROR] Could not resolve "node:path"

    dist/server/_astro-internal_middleware.mjs:2:24:
      2 │ import { dirname } from 'node:path';
        ╵                         ~~~~~~~~~~~

  The package "node:path" wasn't found on the file system but is built into node. Are you trying to bundle for node? You can use "platform: 'node'" to do that, which will remove this error.

Could not resolve "node:path"
  Location:
    dist/server/_astro-internal_middleware.mjs:2:24
  Stack trace:
    at failureErrorWithLog (/home/projects/github-7ls6muoe/node_modules/esbuild/lib/main.js:1466:15)
    at runOnEndCallbacks (/home/projects/github-7ls6muoe/node_modules/esbuild/lib/main.js:1306:49)
    at buildOrContextContinue/< (/home/projects/github-7ls6muoe/node_modules/esbuild/lib/main.js:960:16)
    at handleIncomingPacket (/home/projects/github-7ls6muoe/node_modules/esbuild/lib/main.js:667:20)
    at emit (node:events:30:10899)
    at readableAddChunk (node:internal/streams/readable:225:3393)
    at onStreamRead (node:internal/stream_base_commons:211:2596)
    at _0x12b09d/< (https://github7ls6muoe-103g.w-corp-staticblitz.com/blitz.d20a0a75.js:40:514366)
    at _0x520d6d (https://github7ls6muoe-103g.w-corp-staticblitz.com/blitz.d20a0a75.js:40:201442)
    at _0x2f86bf (https://github7ls6muoe-103g.w-corp-staticblitz.com/blitz.d20a0a75.js:40:510963)
    at _0x5a9943 (https://github7ls6muoe-103g.w-corp-staticblitz.com/blitz.d20a0a75.js:40:514536)

During development everything works as expected.
Not sure if this is related to Vercels adapter or not as the process fails after [build] Waiting for integration "@astrojs/vercel", hook "astro:build:done"....

What's the expected result?

Build completion

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-7ls6muoe

Participation

• I am willing to submit a pull request for this issue.

[ematipico]

You're using the Vercel edge runtime, which has a different runtime: https://vercel.com/docs/functions/runtimes/edge-runtime

[donnikitos]

OMG, that's it!
Never mind then. Thanks for pointing it out.

But it would be pretty handy to receive a notice during development too!