--watch throws "address already in use" error

[dionsaur84]

Describe the bug

I'm trying to use vite for frontend and vite-node for backend

In dev, I would like:

• vite to watch files and rebuild the frontend on changes
• vite-node to watch files and restart the server on changes

For example, here is my dev script inside of package.json:

"scripts": {
    "dev": "vite build --watch && vite-node ./src/entries/server.js --watch"
},

Here is my vite.config.js file:

import reactPlugin from '@vitejs/plugin-react'
import { defineConfig } from 'vite'

export default defineConfig({
    build: {
        rollupOptions: {
            input: './src/entries/client.jsx',
            output: {
                entryFileNames: '[name].js',
                assetFileNames: '[name].[ext]',
            },
        },
        outDir: './public/dist',
    },
    publicDir: false,
    plugins: [
        reactPlugin(),
    ],
})

The ./src/entries/server.js file just starts an express server:

import app from '../lib/app'
import env from '../lib/env'

app.listen(env.APP_PORT, function () {
    console.log(`app listening on http://localhost:${env.APP_PORT}`)
})

Ideally I would like HMR to work with this as well. Perhaps I am doing this the wrong way, but right now, when I run the dev command and edit a file, vite-node gives the following error:

[vite-node] Failed to execute file: 
 Error: listen EADDRINUSE: address already in use :::5000
    at Server.setupListenHandle [as _listen2] (node:net:1468:16)
    at listenInCluster (node:net:1516:12)
    at Server.listen (node:net:1604:7)
    at Function.listen (/Users/dionsaur84/Sites/dio-framework/node_modules/express/lib/application.js:635:24)
    at /Users/dionsaur84/Sites/dio-framework/src/entries/server.js:10:5
    at ViteNodeRunner.directRequest (file:///Users/dionsaur84/Sites/dio-framework/node_modules/vite-node/dist/client.mjs:289:5)
    at ViteNodeRunner.cachedRequest (file:///Users/dionsaur84/Sites/dio-framework/node_modules/vite-node/dist/client.mjs:149:14)
    at ViteNodeRunner.executeFile (file:///Users/dionsaur84/Sites/dio-framework/node_modules/vite-node/dist/client.mjs:126:12)
    at CAC.run (file:///Users/dionsaur84/Sites/dio-framework/node_modules/vite-node/dist/cli.mjs:678:5) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 5000
}

Reproduction

Please see description.

System Info

System:
    OS: macOS 13.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 517.83 MB / 16.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 19.2.0 - /opt/homebrew/bin/node
    npm: 8.19.3 - /opt/homebrew/bin/npm
  Browsers:
    Chrome: 108.0.5359.124
    Safari: 16.2

Used Package Manager

npm

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[sheremet-va]

Duplicate of #2334

[dionsaur84]

my bad, thank you