What file types are crucial for defining routes in Salesforce Commerce Cloud?

The defining file types for routing in Salesforce Commerce Cloud are found in routes.json and controller.js. The routes.json file specifies how HTTP requests map to controller actions within the application. It acts as a configuration file that helps define various routes for the application, specifying the path, method, and required controller for each route.

The controller.js file contains the logic that handles the requests routed to it. It defines the functions that execute when the defined routes are accessed, managing the application's responses to client requests.

By using these two file types together, Salesforce Commerce Cloud applications structure their routing effectively, ensuring that incoming requests are accurately directed to the appropriate processing logic within the controller. This setup is essential for creating a well-organized and functioning application within the platform.