Using astro with @astrojs/netlify does not allow running preview locally

[richwklein]

Astro Info

Astro                    v5.1.1
Node                     v20.16.0
System                   macOS (x64)
Package Manager          npm
Output                   static
Adapter                  @astrojs/netlify
Integrations             astro-icon
                         astro-fuse
                         @astrojs/mdx
                         @astrojs/sitemap
                         @astrojs/tailwind

Describe the Bug

I'm using the netlify adapter. When I try to run the astro preview command locally, I get the error.

The @astrojs/netlify adapter does not support the preview command.

What's the expected result?

I would expect I would be able to run preview locally to test the output of the build locally.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-ggno1pvr?file=astro.config.mjs

Participation

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

[LarsEjaas]

I am seeing the same. Right now I am using the node-adaptor as a temporary workaround:

in my astro.config.mjs file:

import { defineConfig } from 'astro/config';
import netlify from '@astrojs/netlify';
import node from '@astrojs/node';

let adapter = netlify({
  edgeMiddleware: false,
  functionPerRoute: false,
});

if (process.argv[3] === '--node' || process.argv[4] === '--node') {
  adapter = node({ mode: 'standalone' });
}

// https://astro.build/config
export default defineConfig({
  adapter,
 //--more config

In my package.json I then have a build command I only use locally - with a --node flag:

"scripts": {
    "dev": "netlify dev",
    "start": "astro dev",
    "build": "npm ci --include=dev && astro check && astro build",
    "build:node": "npm ci --include=dev && astro check && astro build ./ --node",
    "preview": "astro preview --node",

This runs on http though - and right now causes a few issues to me - so kind of a pain. I had no issues previously running the preview command using the netlify-adaptor v5.5.4 - but fails on v6.0.1

Edit: I have switched to using the Netlify CLI locally where I can run netlify serve - this runs a local build and then serves a preview locally in the same way as netlify preview used to work.