updateLineItemsInCheckout method

Future<Checkout> updateLineItemsInCheckout({ required String checkoutId, required List<LineItem> lineItems, })

Returns the Checkout that checkoutId belongs to after updating the lineItems to it.

Implementation

Future<Checkout> updateLineItemsInCheckout({
  required String checkoutId,
  required List<LineItem> lineItems,
}) async {
  final MutationOptions _options = MutationOptions(
    document: gql(updateLineItemsInCheckoutMutation),
    variables: {
      'checkoutId': checkoutId,
      'lineItems': [
        for (var lineItem in lineItems)
          {
            'id': lineItem.id,
            'variantId': lineItem.variantId,
            'quantity': lineItem.quantity,
            'customAttributes': lineItem.customAttributes
                .map((e) => {'key': e.key, 'value': e.value})
                .toList(),
          },
      ],
    },
  );
  final QueryResult result = await _graphQLClient!.mutate(_options);
  checkForError(
    result,
    key: 'updateLineItemsInCheckout',
    errorKey: 'checkoutUserErrors',
  );

  return Checkout.fromJson(
    ((result.data!['checkoutLineItemsUpdate'] ?? const {})['checkout'] ??
        const {}),
  );
}