const http = require('http');

// Create an HTTP server
const server = http.createServer((req, res) => {
  // 'res' is the ServerResponse object
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World\n');
});

// Start the server
const PORT = 3000;
server.listen(PORT, () => {
  console.log(`Server running at http://localhost:${PORT}/`);
  
  // Make a test request to the server
  http.get(`http://localhost:${PORT}`, (response) => {
    let data = '';
    
    // A chunk of data has been received
    response.on('data', (chunk) => {
      data += chunk;
    });
    
    // The whole response has been received
    response.on('end', () => {
      console.log('Response from server:', data.trim());
      server.close();
    });
    
  }).on('error', (err) => {
    console.error('Error making test request:', err);
    server.close();
  });
});

// Handle server errors
server.on('error', (err) => {
  console.error('Server error:', err);
});