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gt-agent-company/.agents/skills/vite/references/advanced-backend.md
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2026-03-31 18:41:52 +08:00

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---
name: advanced-backend
description: Integrating Vite with traditional backend frameworks
---
# Backend Integration
Integrate Vite with traditional backends (Rails, Laravel, etc.) for asset serving.
## Configuration
```ts
// vite.config.ts
export default defineConfig({
server: {
cors: {
origin: 'http://my-backend.example.com'
}
},
build: {
manifest: true, // Generate .vite/manifest.json
rolldownOptions: {
input: '/path/to/main.js' // Override HTML entry
}
}
})
```
Import polyfill in entry:
```ts
// main.js
import 'vite/modulepreload-polyfill'
```
## Development
Inject Vite client and entry in your backend template:
```html
<!-- Development only -->
<script type="module" src="http://localhost:5173/@vite/client"></script>
<script type="module" src="http://localhost:5173/main.js"></script>
```
### React Setup
Add before other scripts:
```html
<script type="module">
import RefreshRuntime from 'http://localhost:5173/@react-refresh'
RefreshRuntime.injectIntoGlobalHook(window)
window.$RefreshReg$ = () => {}
window.$RefreshSig$ = () => (type) => type
window.__vite_plugin_react_preamble_installed__ = true
</script>
```
### Asset Proxying
Either:
1. Proxy static asset requests to Vite
2. Set `server.origin`:
```ts
export default defineConfig({
server: {
origin: 'http://localhost:5173'
}
})
```
## Production
Build generates `.vite/manifest.json`:
```json
{
"views/foo.js": {
"file": "assets/foo-BRBmoGS9.js",
"src": "views/foo.js",
"isEntry": true,
"imports": ["_shared-B7PI925R.js"],
"css": ["assets/foo-5UjPuW-k.css"]
},
"_shared-B7PI925R.js": {
"file": "assets/shared-B7PI925R.js",
"css": ["assets/shared-ChJ_j-JJ.css"]
}
}
```
## Rendering Tags
For entry `views/foo.js`, render in this order:
```html
<!-- 1. Entry CSS -->
<link rel="stylesheet" href="/assets/foo-5UjPuW-k.css" />
<!-- 2. Imported chunks' CSS (recursive) -->
<link rel="stylesheet" href="/assets/shared-ChJ_j-JJ.css" />
<!-- 3. Entry script -->
<script type="module" src="/assets/foo-BRBmoGS9.js"></script>
<!-- 4. Optional: preload imports -->
<link rel="modulepreload" href="/assets/shared-B7PI925R.js" />
```
## Manifest Structure
```ts
interface ManifestChunk {
src?: string // Input file name
file: string // Output file name
css?: string[] // CSS files (JS chunks only)
assets?: string[] // Non-CSS assets (JS chunks only)
isEntry?: boolean // Is entry point
isDynamicEntry?: boolean // Is dynamic import
imports?: string[] // Static imports (manifest keys)
dynamicImports?: string[] // Dynamic imports (manifest keys)
}
```
## Processing Imports
Recursively collect all imported chunks:
```ts
function getImportedChunks(manifest, name) {
const seen = new Set()
const chunks = []
function collect(chunk) {
for (const file of chunk.imports ?? []) {
if (seen.has(file)) continue
seen.add(file)
const importee = manifest[file]
collect(importee)
chunks.push(importee)
}
}
collect(manifest[name])
return chunks
}
```
## Existing Integrations
Check [Awesome Vite](https://github.com/vitejs/awesome-vite#integrations-with-backends) for:
- Laravel (laravel-vite)
- Rails
- Django
- Flask
- And more
<!--
Source references:
- https://vite.dev/guide/backend-integration.html
-->