added some base code to start doing work

app.js

@@ -0,0 +1,30 @@
+const express = require('express')
+const path = require('path')
+
+const authRoutes = require('./routes/auth')
+const productsRoutes = require('./routes/products')
+const usersRoutes = require('./routes/users')
+
+const app = express()
+const port = process.env.PORT || 3000
+
+// Middleware
+app.use(express.json()) // For parsing application/json
+app.use(express.urlencoded({ extended: true })) // For parsing URL-encoded form data
+
+// Static Files (Serving Frontend)
+app.use(express.static(path.join(__dirname, 'public')))
+
+// Mount Routes
+app.use('/auth', authRoutes)
+app.use('/products', productsRoutes)
+app.use('/users', usersRoutes)
+
+// Default Route (Catch-all for undefined routes)
+app.use((req, res, next) => {
+	res.status(404).send('Sorry, the resource you requested could not be found.')
+})
+
+app.listen(port, () => {
+	console.log(`Server listening on port ${port}`)
+})