React, JavaScript, Architecture.
setData(data)); }, []); if (!data) { return <div>Loading...</div>; } return ( <div> <h1>{data.title}</h1> <p>{data.content}</p> </div> ); } export default App; API Endpoint (Node.js + Express) const express = require('express'); const app = express(); app.get('/api/data', (req, res) => { res.json({