const app = require('express')(); const mongoose = require('mongoose'); const React = require('react'); const { useState, useEffect } = React; mongoose.connect('mongodb://localhost/infonexus'); const CourseSchema = new mongoose.Schema({ name: String, city: { type: String, default: 'Indore' }, students: Number, placement: { type: Number, default: 98 } }); app.get('/api/mern-course', async (req, res) => { const data = await Course.find({ city: 'Indore' }); res.json({ success: true, data }); }); function EnrollForm() { const [name, setName] = useState(''); return ( <form onSubmit={handleSubmit}> <input value={name} onChange={e => setName(e.target.value)} /> <button type="submit">Enroll Now</button> </form> ); } app.listen(3000, () => console.log('InfoNexus Server Running'));