Line Item Attribute

Line items describe purchasable items and are used in cart and order-related interactions.

Field Name	Field Type	Description
`attributes`	object	A dictionary of user-supplied key-value pairs that to add more detail, such as `{"color": "blue"}`
`catalogObjectType`	string	Required. A type name representing the catalog object referenced in the line item. For example, `Product`, and `SKU`.
`catalogObjectId`	string	Required. A unique ID representing the catalog object referenced in the line item.
`currency`	string	The currency for the `price` field. For example, `USD`, and `GBP`.
`price`	number	The price of the catalog object referenced in the line item.
`quantity`	number	Required. The number of catalog objects in this line item.

Here's an example of a LineItem for iOS.

Here's an example of a LineItem for Android.