How to deploy Node.js on Netlify? - Stack Overflow

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When running the netlify dev command, the endpoints (home and create) in user/routes.js are not found (404). So I cannot deploy on production.

|---.git
|---.gitignore
|---src
|   |---user
|   |   |---controller.js  (ignore this part)
|   |   |---routes.js
|   |---app.js
|   |---config.js
|   |---routes.js
|---.env.dev.sample
|---package.json

// src/user/routes.js
import express from 'express';
import { create } from './controller.js';

const router = express.Router();

router.get('/create', create);

router.get('/test', (req, res) => {
  res.send("Test page for netlify hosting");
});

export default router;

// src/app.js
import express from 'express';
import cors from 'cors';
import { APP_PORT } from './config.js';
import router from './routes.js';
import serverless from 'serverless-http';

const app = express();

app.listen(APP_PORT, () => {
  console.log(`Server is running on port ${APP_PORT}`);
});

app.use(express.json({ limit: '5mb' }));
app.use(cors());

app.use('/api/v1', router);

app.use((req, res, next) => {
   res.status(404).json('The requested resource was not found on this server');
});

export default serverless(app);

// src/config.js
import dotenv from 'dotenv';
import { fileURLToPath } from 'url';
import { dirname } from 'path';
import path from 'path';

const envConfigFile = process.env;

if (envConfigFile.NODE_ENV !== 'prod') {
    const __filename = fileURLToPath(import.meta.url);
    const __dirname = dirname(__filename);
    
    const configFile = path.resolve(__dirname, '../.env.sample');
    dotenv.config({ path: configFile, encoding: 'utf-8' });
}

const { APP_PORT } = envConfigFile;

export { APP_PORT };

// src/routers.js
import { Router } from 'express';
import userRoutes from './user/routes.js';

const router = Router();

router.use('/user', userRoutes);

export default router;

# .env.dev.sample
APP_PORT = "yourAppPort"

// package.json
{
    "version": "1.0.0",
    "description": "",
    "type": "module",
    "engines": {
        "node": "20.18.0",
        "npm": "10.8.2"
    },
    "main": "src/app.js",
    "scripts": {
        "start": "cross-env NODE_ENV=prod node src/app.js",
        "devStart": "cross-env NODE_ENV=dev nodemon src/app.js"
    },
    "author": "",
    "license": "",
    "homepage": "",
    "devDependencies": {
        "cross-env": "7.0.3",
        "nodemon": "3.1.9"
    },
    "dependencies": {
        "cors": "2.8.5",
        "dotenv": "16.4.7",
        "express": "4.21.2",
        "serverless-http": "^3.2.0"
    }
}

Already try this. Still I cannot deploy on local and prod on Netlify site.

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