JavaScript

// app.js (Main application file)
const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const authRoutes = require('./routes/auth');
const userRoutes = require('./routes/users');
const authenticateToken = require('./middleware/authenticateToken');
const cors = require('cors');

const app = express();
const PORT = process.env.PORT || 3000;

app.use(cors()); // Enable CORS for all routes
app.use(bodyParser.json());

// MongoDB Connection
mongoose.connect('mongodb://127.0.0.1:27017/user-management', {
  useNewUrlParser: true,
  useUnifiedTopology: true,
})
.then(() => console.log('MongoDB Connected'))
.catch(err => console.error('MongoDB Connection Error:', err));

// Routes
app.use('/auth', authRoutes);
app.use('/users', authenticateToken, userRoutes); // Apply authentication middleware

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