How do you access Shopify APIs in theme development?

In theme development for Shopify, accessing Shopify APIs through AJAX calls in JavaScript is the correct approach. This method allows developers to make asynchronous requests to the Shopify server without needing to refresh the entire page. By using AJAX, you can retrieve and manipulate data from Shopify's APIs dynamically, enhancing the user experience on the storefront.

AJAX is particularly useful for real-time features, such as updating the cart, fetching product details, and managing customer data seamlessly. This interaction is done directly from the front-end, allowing for a more interactive and responsive design.

The other options either involve methods that are not applicable or relevant within the context of theme development. Direct database queries and PHP scripting are not standard practices for accessing Shopify APIs in a theme environment, as Shopify restricts direct database access for security and integrity reasons. Additionally, while the Shopify admin interface provides access to some APIs, theme development requires direct interaction through front-end technologies like AJAX, making it the appropriate choice in this context.