How can I handle errors in Node.js with MongoDB?

How can I handle errors in Node.js with MongoDB?

You can handle errors in Node.js with MongoDB by using try-catch blocks and handling promise rejections.

Can you give me an example of using try-catch with MongoDB?

Sure! Here's a simple example:

async function getUser(userId) {
    try {
        const user = await User.findById(userId);
        return user;
    } catch (error) {
        console.error('Error fetching user:', error);
        throw new Error('User not found');
    }
}

What about handling validation errors?

For validation errors, you can check the error type in the catch block. For example:

catch (error) {
    if (error.name === 'ValidationError') {
        console.error('Validation error:', error.message);
    }
}

Are there any libraries that can help with error handling?

Yes, libraries like 'express-async-errors' can help manage async errors in Express applications.