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server.js
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server.js
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// @ts-check
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import express from 'express';
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) => 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();
app.get("/api/say_hello", (req, res) => {
res.end("Hi");
});
/**
* @type {import('vite').ViteDevServer}
*/
let vite;
if (!isProd) {
vite = await (
await import('vite')
).createServer({
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.js'))
.render;
} else {
template = indexProd;
// @ts-ignore
render = (await import('./dist/server/entry-server.js')).render;
}
const [appHtml, preloadLinks, head_payload, locale] = await render(
url,
manifest
);
const html = template
.replace(`LOCALE`, locale)
.replace(`<!--preload-links-->`, preloadLinks)
.replace(`<!--head-tags-->`, head_payload.headTags)
.replace(`<!--main-app-->`, appHtml);
res.status(200).set({ 'Content-Type': 'text/html' }).end(html);
} catch (e) {
vite && vite.ssrFixStacktrace(e);
res.status(500).end(e.stack);
}
});
// @ts-ignore
return { app, vite };
}
if (!isTest) {
const port = process.env.PORT || 6173;
createServer().then(({ app }) =>
app.listen(port, () => {
console.log(`http://localhost:${port}`);
})
);
}