How can I handle async errors in Node.js with Express?

How can I handle async errors in Node.js with Express?

You can use middleware to catch async errors in Express. One common approach is to create a custom error-handling middleware.

Can you show me an example of that middleware?

Sure! Here's a simple example:

app.use(async (req, res, next) => {
    try {
        // Your async code here
        await someAsyncFunction();
        res.send('Success!');
    } catch (error) {
        next(error); // Pass the error to the error handler
    }
});

What about the error-handling middleware itself?

You can define it like this:

app.use((err, req, res, next) => {
    console.error(err.stack);
    res.status(500).send('Something broke!');
});

Is there a way to handle different types of errors?

Yes, you can check the error type in your error-handling middleware and respond accordingly.