Add Return Field
This use-case adds any field you want to the response. So, for example, you want to access the value from the field products_image, you can add it in the strategy and then retrieve it in the response.
The only thing you need to configure, is the field, you want to be returned.
After clicking Save&Test you can see that the field is displayed automatically in the products in the test view. On the left you can see the products without the use-case active. On the right side the use-case above is enabled.