server.js

/* eslint-disable no-console */
import compression from 'compression';
import express from 'express';
import morgan from 'morgan';

// Short-circuit the type-checking of the built output.
const BUILD_PATH = './build/server/index.js';
const DEVELOPMENT = process.env.NODE_ENV === 'development';
const PORT = Number.parseInt(process.env.PORT || '3000');

const app = express();

app.use(compression());
app.disable('x-powered-by');

if (DEVELOPMENT) {
    console.log('Starting development server');
    const viteDevServer = await import('vite').then((vite) =>
        vite.createServer({
            server: { middlewareMode: true },
        })
    );
    app.use(viteDevServer.middlewares);
    app.use(async (req, res, next) => {
        try {
            const source = await viteDevServer.ssrLoadModule('./server/app.ts');
            return await source.app(req, res, next);
        } catch (error) {
            if (typeof error === 'object' && error instanceof Error) {
                viteDevServer.ssrFixStacktrace(error);
            }
            next(error);
        }
    });
} else {
    console.log('Starting production server');
    app.use('/assets', express.static('build/client/assets', { immutable: true, maxAge: '1y' }));
    app.use(morgan('tiny'));
    app.use(express.static('build/client', { maxAge: '1h' }));
    app.use(await import(BUILD_PATH).then((mod) => mod.app));
}

app.listen(PORT, () => {
    console.log(`Server is running on http://localhost:${PORT}`);
});