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server.ts
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// https://github.com/vitejs/vite-plugin-vue/blob/main/playground/ssr-vue/server.js
import fs from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'
import express from 'express'
import { ViteDevServer } from 'vite'
import { SiteConfiguration } from './src/site'
const isTest = process.env.VITEST
export async function createServer(
root = process.cwd(),
isProd = process.env.NODE_ENV === 'production',
hmrPort,
) {
const __dirname = path.dirname(fileURLToPath(import.meta.url))
const resolve = (p: string) => path.resolve(__dirname, p)
const indexProd = isProd ? fs.readFileSync(resolve('dist/client/index.html'), 'utf-8') : ''
const manifest = isProd
? JSON.parse(fs.readFileSync(resolve('dist/client/.vite/ssr-manifest.json'), 'utf-8'))
: {}
const app = express()
/**
* @type {import('vite').ViteDevServer}
*/
let vite: ViteDevServer
if (!isProd) {
vite = await (
await import('vite')
).createServer({
base: '/',
root,
logLevel: isTest ? 'error' : 'info',
server: {
middlewareMode: true,
watch: {
// During tests we edit the files too fast and sometimes chokidar
// misses change events, so enforce polling for consistency
usePolling: true,
interval: 100,
},
hmr: {
port: hmrPort,
},
},
appType: 'custom',
})
// use vite's connect instance as middleware
app.use(vite.middlewares)
} else {
app.use((await import('compression')).default())
app.use(
'/',
(await import('serve-static')).default(resolve('dist/client'), {
index: false,
}),
)
}
app.use('*', async (req, res) => {
try {
const url = req.originalUrl
let template, render
if (!isProd) {
// always read fresh template in dev
template = fs.readFileSync(resolve('index.html'), 'utf-8')
template = await vite.transformIndexHtml(url, template)
render = (await vite.ssrLoadModule('/src/entry-server')).render
} else {
template = indexProd
render = (await import('./dist/server/entry-server.js')).render
}
const [appHtml, preloadLinks, titlePrefix, meta] = await render(url, manifest)
const html = template
.replace(`<!--preload-links-->`, preloadLinks)
.replace(`<!--app-html-->`, appHtml)
.replace(`<!--title-prefix-->`, titlePrefix)
.replace(`<!--meta-->`, meta)
.replace(`<!--title-suffix-->`, SiteConfiguration.titleSuffix)
res.status(200).set({ 'Content-Type': 'text/html' }).end(html)
} catch (e) {
// eslint-disable-next-line @typescript-eslint/no-unused-expressions
vite && vite.ssrFixStacktrace(e)
console.log(e.stack)
res.status(500).end(e.stack)
}
})
// @ts-expect-error vite could be undefined in prod
return { app, vite }
}
if (!isTest) {
createServer(undefined, undefined, undefined).then(({ app }) =>
app.listen(6173, () => {
console.log('http://localhost:6173')
}),
)
}