How do I handle query parameters in APIs?

How do I handle query parameters in APIs?

Handling query parameters in APIs involves parsing the URL to extract key-value pairs. You can use libraries like Express in Node.js to easily access these parameters.

Can you give me an example of how to do this in Express?

Sure! In Express, you can access query parameters using req.query. For example, if your URL is /api/items?category=books, you can get the category with req.query.category.

What if I have multiple query parameters?

You can access multiple query parameters in the same way. For instance, if your URL is /api/items?category=books&sort=asc, you can retrieve both with req.query.category and req.query.sort.

Are there any best practices for using query parameters?

Yes, it's best to keep query parameters simple, use clear naming conventions, and avoid sensitive data in URLs.