Payment Item Object

The PaymentItem object The PaymentItem object is used to configure a PaymentRequest. - amount The amount in the currency's subunit (e.g. cents, yen, etc.) - label A name that the browser shows the customer in the payment interface. - pending If you might change this amount later (for example, after you have calcluated shipping costs), set this to true. Note that browsers treat this as a hint for how to display things, and not necessarily as something that will prevent submission.