# Builder

constructor(id: [String](https://developer.android.com/reference/kotlin/java/lang/String.html), purchaseDate: [Date](https://developer.android.com/reference/kotlin/java/util/Date.html), lineItems: [List](https://developer.android.com/reference/kotlin/java/util/List.html) < [Order.LineItem](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order/-line-item/index.html) >)

Constructor.

#### Parameters

- **id**  
  The order identifier (required).

- **purchaseDate**  
  The time the purchase was made by the user (required).

- **lineItems**  
  A list of the line item details that comprise the order (required).