How do I validate async data in my application?

How do I validate async data in my application?

Validating async data typically involves checking the data once it's received. You can use promises or async/await syntax to handle this.

Can you give me an example of how to do that?

Sure! You can use a try-catch block with async/await to validate the data. For instance:

async function fetchData() {
    try {
        const response = await fetch('your-api-endpoint');
        const data = await response.json();
        if (!data || !data.requiredField) {
            throw new Error('Validation failed: requiredField is missing.');
        }
        return data;
    } catch (error) {
        console.error('Error fetching data:', error);
    }
}

What if the data structure is complex?

In that case, you might want to use a validation library like Joi or Yup, which can help you define schemas for complex data structures.