productExtend.js

var customerPromotions = dw.campaign.PromotionMgr.getActiveCustomerPromotions();
/**
 *  Converts a product into a extended object
 */ 
function createExtendedProduct(productId) {
    var staticCache = dw.system.CacheMgr.getCache('ProductExtendStatic');
    var product = dw.catalog.ProductMgr.getProduct(productId);

    if (!product) {
        return;
    }
    // try to cache if we can
    var resultSealed = staticCache.get(productId + ';' + request.locale, function() {
        var priceModel = product.priceModel;
        if (!priceModel) {
            return;
        }
        var originalPrice = priceModel.price;
        var activePriceBookId;
        var salePrice =   priceModel.price;
        var parentPriceBookID;
        if (!empty(priceModel) && !empty(priceModel.priceInfo)) {
            activePriceBookId = priceModel.priceInfo.priceBook.ID;
            if (!empty(priceModel.priceInfo.priceBook.parentPriceBook)) {
                parentPriceBookID = priceModel.priceInfo.priceBook.parentPriceBook.ID;
                originalPrice = priceModel.getPriceBookPrice(parentPriceBookID);
            }
        }
    
        return {
            masterProductId : product.variationModel.master.ID,
            priceInfo: {
                originalPrice: {
                    value: originalPrice.value,
                    currency: originalPrice.currencyCode,
                    pricebook: parentPriceBookID || activePriceBookId
                },
                salePrice: {
                    value: salePrice.value,
                    currency: salePrice.currencyCode,
                    pricebook: activePriceBookId
                }
            }, 
        }
    });
    // make cache entry editable, as it is sealed otherweise
    var result = JSON.parse(JSON.stringify(resultSealed));
    result.id = productId
    var promos = customerPromotions.getProductPromotions(product).iterator();
    if (promos.hasNext()) {
        var promo = promos.next();
        // add personalized information to cache entry
        var dynamicCache = dw.system.CacheMgr.getCache('ProductExtendDynamic');
        var promotionPrice = dynamicCache.get(productId + ';' + promo.ID + ';' + request.locale, function() {
            var promoPrice = promo.getPromotionalPrice(product);
            return {
                value: promoPrice.value,
                currency: promoPrice.currencyCode,
                promoDetails: {
                    Id: promo.ID,
                    name:  promo.name.toString(),
                    callOut : promo.calloutMsg.toString(),
                    details : promo.details.toString(),
                    image: promo.image ? promo.image.absURL : null
                }
        }});
        
        result.priceInfo.promotionPrice = promotionPrice;
    }
    return result
}

exports.get = function(httpParams) {
    var products = httpParams.c_products.pop().replace('(','').replace(')','').split(',');
    var result = products.map(createExtendedProduct);
    return result;
}