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server.ts
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server.ts
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import fs from 'fs'
import path from 'path'
import express from 'express'
import { ViteDevServer } from 'vite'
const isTest = process.env.NODE_ENV === 'test' || !!process.env.VITE_TEST_BUILD
async function createServer(
root = process.cwd(),
isProd = process.env.NODE_ENV === 'production',
) {
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/ssr-manifest.json'), 'utf-8'))
: {}
const app = express()
let vite: ViteDevServer
if (!isProd) {
vite = await import('vite').then(i => i.createServer({
root,
logLevel: isTest ? 'error' : 'info',
server: {
middlewareMode: true,
},
}))
// use vite's connect instance as middleware
app.use(vite.middlewares)
}
else {
app.use(await import('compression').then(i => i.default()))
app.use(await import('serve-static')
.then(i => i.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)
// @ts-ignore
render = (await vite.ssrLoadModule('/src/entry-server.ts')).render
}
else {
template = indexProd
// @ts-ignore
render = await import('./dist/server/entry-server.js').then(i => i.render)
}
const [appHtml, preloadLinks, head] = await render(url, manifest)
const html = template
.replace('<!--preload-links-->', preloadLinks)
.replace('<!--head-meta-->', head.headTags)
.replace('<!--app-html-->', appHtml)
.replace('<html>', `<html${head.htmlAttrs}>`)
.replace('<body>', `<body${head.bodyAttrs}>`)
res.status(200).set({ 'Content-Type': 'text/html' }).end(html)
}
catch (e) {
// @ts-ignore
vite && vite.ssrFixStacktrace(e)
console.log(e.stack)
res.status(500).end(e.stack)
}
})
// @ts-ignore
return { app, vite }
}
if (!isTest) {
createServer().then(({ app }) =>
app.listen(3000, () => {
console.log('🚀 Server listening on http://localhost:3000')
}),
)
}
// for test use
export default createServer