api-docs/docs/node-tracker/markdown/node-tracker.addtocartevent.md
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[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [AddToCartEvent](./node-tracker.addtocartevent.md)
## AddToCartEvent interface
An Add To Cart Event For tracking users adding items from a cart on an ecommerce site.
<b>Signature:</b>
```typescript
interface AddToCartEvent
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [category?](./node-tracker.addtocartevent.category.md) | string | <i>(Optional)</i> The category of the product |
| [currency?](./node-tracker.addtocartevent.currency.md) | string | <i>(Optional)</i> The currency of the product |
| [name?](./node-tracker.addtocartevent.name.md) | string | <i>(Optional)</i> The name of the product |
| [quantity](./node-tracker.addtocartevent.quantity.md) | number | The number added to the cart |
| [sku](./node-tracker.addtocartevent.sku.md) | string | A Product Stock Keeping Unit (SKU) |
| [unitPrice?](./node-tracker.addtocartevent.unitprice.md) | number | <i>(Optional)</i> The price of the product |