Skip to main content

Documentation Index

Fetch the complete documentation index at: https://docs.crossmint.com/llms.txt

Use this file to discover all available pages before exploring further.

Sealed Class A single asset to purchase in a checkout order. 
sealed class CrossmintCheckoutLineItem
Use the named factory constructors to create line items:
  • CrossmintCheckoutLineItem.collection — primary sale from a managed or imported collection. Supports optional callData for contract mint args.
  • CrossmintCheckoutLineItem.token — secondary sale of a specific token, with optional callData for contract arguments.
  • CrossmintCheckoutLineItem.tokenWithExecutionParameters — secondary sale (e.g. memecoin swap) with execution parameters controlling amount, mode, and slippage. Mutually exclusive with callData.
  • CrossmintCheckoutLineItem.product — product-based purchase using a Crossmint product locator.
  • CrossmintCheckoutLineItem.raw — forward-compatible escape hatch for line-item shapes not yet modeled by the SDK.

​
Constructors

​
CrossmintCheckoutLineItem

const CrossmintCheckoutLineItem()

​
CrossmintCheckoutLineItem.collection

factory CrossmintCheckoutLineItem.collection({
  required String collectionLocator,
  Map<String, Object?>? callData,
  Map<String, Object?> additionalFields,
}) = CrossmintCheckoutCollectionLineItem
Creates a collection line item for primary sales.

​
CrossmintCheckoutLineItem.token

factory CrossmintCheckoutLineItem.token({
  required String tokenLocator,
  Map<String, Object?>? callData,
  Map<String, Object?> additionalFields,
}) = CrossmintCheckoutTokenLineItem
Creates a token line item for secondary sales with optional callData.

​
CrossmintCheckoutLineItem.tokenWithExecutionParameters

factory CrossmintCheckoutLineItem.tokenWithExecutionParameters({
  required String tokenLocator,
  required Map<String, Object?> executionParameters,
  Map<String, Object?> additionalFields,
}) = CrossmintCheckoutTokenExecutionLineItem
Creates a token line item with execution parameters for secondary sales (e.g. memecoins with slippage and amount control).

​
CrossmintCheckoutLineItem.product

factory CrossmintCheckoutLineItem.product({
  required String productLocator,
  Map<String, Object?> additionalFields,
}) = CrossmintCheckoutProductLineItem
Creates a product line item identified by a Crossmint productLocator. Use this for catalog-managed product purchases where the price and SKU are resolved server-side from the locator.

​
CrossmintCheckoutLineItem.raw

factory CrossmintCheckoutLineItem.raw({required Map<String, Object?> value}) =
CrossmintCheckoutRawLineItem
Forward-compatible escape hatch — passes value verbatim to the Crossmint orders API as the line item shape. Use when a new line-item field is not yet modeled by the typed factories above.