How can you create a custom API endpoint in SFCC?

Creating a custom API endpoint in Salesforce Commerce Cloud (SFCC) involves defining a custom controller and exposing it through the routing configuration. This process typically requires leveraging the built-in framework that SFCC provides for creating custom business logic and functionalities.

When you define a custom controller, you can specify the specific actions that your API will handle, thus allowing you to control the behavior and responses tailored to meet your application's needs. The routing configuration is essential as it maps your custom endpoint to a specific URL pattern, enabling external systems or frontend applications to connect with your custom API effectively.

This approach allows developers to encapsulate their business logic in a structured way while taking advantage of the existing framework's security, performance, and scalability features. It ensures that you stay compliant with SFCC standards, making your integrations cleaner and more maintainable over time.

The other options either deviate from the standard practices recommended for creating APIs in SFCC or suggest methods that are not inherently designed for API creation, such as modifying existing API endpoints or relying on external services.