How can I handle async errors in a TypeScript Express app?

How can I handle async errors in a TypeScript Express app?

You can use middleware to catch async errors in your Express app. Here's a basic example.

Can you show me a code snippet for that?

Sure! You can create an error-handling middleware like this:

app.use(async (req, res, next) => {
  try {
    await someAsyncFunction();
    next();
  } catch (error) {
    next(error);
  }
});

app.use((err, req, res, next) => {
  res.status(500).send({ error: err.message });
});

What if I want to handle different types of errors differently?

You can check the error type in your error-handling middleware and respond accordingly. For example, you can differentiate between validation errors and server errors.