public string GetAllProducts()
        {
            string productsInfo = string.Empty;
            var    products     = _productFacade.GetAllProducts();

            foreach (var product in products)
            {
                productsInfo += string.Format("Name: {0}, Id: {1}, Price: {2}", product.GetName(), product.ProductId, product.GetUnitPrice());
            }
            return(productsInfo);
        }