What are the best practices for using async/await in Express?

What are the best practices for using async/await in Express?

When using async/await in Express, ensure to handle errors properly, use try/catch blocks, and avoid blocking the event loop.

Can you give me an example of error handling with async/await?

Sure! You can wrap your async route handler in a try/catch block like this:

app.get('/route', async (req, res) => {
    try {
        const data = await someAsyncFunction();
        res.json(data);
    } catch (error) {
        res.status(500).send('Internal Server Error');
    }
});

What about using async middleware?

You can create async middleware by returning a promise. Just remember to call next() in case of errors to pass control to the error handler.

Are there any performance considerations I should be aware of?

Yes, while async/await improves readability, excessive use can lead to performance issues if not managed properly. Always profile your application.