How do I handle errors in asynchronous APIs?

How do I handle errors in asynchronous APIs?

Handling errors in asynchronous APIs typically involves using try-catch blocks, promises, or async/await syntax. Would you like examples?

Yes, please provide an example using async/await.

Sure! Here's a simple example:

async function fetchData() {
    try {
        const response = await fetch('https://api.example.com/data');
        if (!response.ok) {
            throw new Error('Network response was not ok');
        }
        const data = await response.json();
        return data;
    } catch (error) {
        console.error('There was a problem with the fetch operation:', error);
    }
}

This code fetches data and handles any errors that may occur.

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

You can differentiate errors by checking the error type or message in the catch block. For example:

catch (error) {
    if (error instanceof TypeError) {
        console.error('Type error:', error);
    } else if (error.message.includes('Network response was not ok')) {
        console.error('Network error:', error);
    } else {
        console.error('General error:', error);
    }
}