Extension Point: Validate Product Sku at Add-to-Cart

Basics

Parameter	Value
Extension Point Key	VALIDATE_PRODUCT_SKU_AT_ADD_TO_CART
Extension Point Name	Validate Sku at Add-to-Cart
Extension Interface	ProductSkuValidator
Supports Multiple Extensions?	Yes
Selector Type	Store
Available Since	1.0.0

Use Cases

Extensions implementing this Extension Point can enforce business rules that prevent items from being added to cart.

Methods

validate

The validate method is invoked when an item is being added to a shopping cart. In Cortex, this happens when the add-to-cart operation is completed with a POST operation. If one or more extensions returns StructuredErrorMessage objects, then a 400 BAD REQUEST response is returned, and the error message details are returned in the response body.

note

The Validate Shopping Item at Add-to-Cart Extension Point is invoked at the same time as this Extension Point.

Extension Sample

@Extension
@XPFAssignment(extensionPoint = XPFExtensionPointEnum.VALIDATE_PRODUCT_SKU_AT_ADD_TO_CART, priority = 100)
public class SampleProductSkuValidator extends XPFExtensionPointImpl implements ProductSkuValidator {
    @Override
    public Collection<StructuredErrorMessage> validate(final XPFProductSkuValidationContext context) {
        List<StructuredErrorMessage> results = new ArrayList<>();
        if (context.getProductSku().getAttributeValueByKey("block-purchase")
                .map(attributeValue -> (boolean) attributeValue.getValue())
                .orElse(false)) {
            results.add(new StructuredErrorMessage("unpurchasable-product",
                "Product has 'block-purchase' attribute set.", Collections.emptyMap()));
        }
        return results;
    }
}