Description

Many developers struggle with properly handling errors in async/await Express routes. A dedicated section in the documentation covering this pattern would be very helpful.

Current Situation

The error handling documentation primarily covers synchronous patterns. With async/await being the standard for modern Node.js applications, explicit guidance would help prevent unhandled promise rejections.

Suggested Documentation Addition

A section covering:

// Wrapper function for async routes
const asyncHandler = (fn) => (req, res, next) => {
  Promise.resolve(fn(req, res, next)).catch(next);
};

// Usage example
app.get('/users/:id', asyncHandler(async (req, res) => {
  const user = await User.findById(req.params.id);
  res.json(user);
}));

Benefits

1. Reduces common errors for Express beginners
2. Promotes proper error handling patterns
3. Prevents unhandled promise rejections in production

I'd be happy to contribute a PR for this documentation update if there's interest.