HTTP 418 — 418 I'm a Teapot

// Express.js Server Response
app.get('/api/resource', (req, res) => {
  // Returning 418 418 I'm a Teapot
  return res.status(418).json({
    error: '418 I'm a Teapot',
    statusCode: 418,
    timestamp: new Date().toISOString()
  });
});

// Client-side fetch error check
const response = await fetch('/api/resource');
if (response.status === 418) {
  console.warn('Received HTTP 418 418 I'm a Teapot');
}