How can I handle errors in async code in my Node.js app?

How can I handle errors in async code in my Node.js app?

You can use try-catch blocks with async/await or handle errors in promise chains using .catch(). Which method do you prefer?

Can you show me an example using try-catch?

Sure! Here's a simple example:

async function fetchData() {
    try {
        const response = await fetch('https://api.example.com/data');
        const data = await response.json();
        return data;
    } catch (error) {
        console.error('Error fetching data:', error);
    }
}

This will catch any errors that occur during the fetch operation.

What about using .catch() with promises?

You can do it like this:

fetch('https://api.example.com/data')
    .then(response => response.json())
    .then(data => console.log(data))
    .catch(error => console.error('Error fetching data:', error));

This will handle any errors that occur in the promise chain.

Are there any best practices for error handling in Node.js?

Yes! Some best practices include logging errors, using centralized error handling middleware, and providing user-friendly error messages.