[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [BaseXAPI](./x-components.basexapi.md) > [addProductToCart](./x-components.basexapi.addproducttocart.md) ## BaseXAPI.addProductToCart() method Tracks that a product was added to cart from PDP. **Signature:** ```typescript addProductToCart(productId?: string): void; ``` ## Parameters

Parameter	Type	Description
productId	string	_(Optional)_ The product id that was added to cart.

**Returns:** void