KnotSuccess.fromJson constructor

KnotSuccess.fromJson(dynamic json)

Factory method to create a KnotSuccess from a json map.

Implementation

factory KnotSuccess.fromJson(dynamic json) {
  if (json is! Map) {
    throw ArgumentError('Expected a Map<String, dynamic>, got ${json.runtimeType}');
  }

  final Map<String, Object?> jsonMap = json.cast<String, Object?>();
  String? productName = jsonMap["product"] as String?;

  // Map to a product
  Product? product;

  switch (productName) {
    case "transaction_link":
      product = Product.transactionLink;
      break;
    case "card_switcher":
      product = Product.cardSwitcher;
      break;
  }

  if (product == null) {
    throw ArgumentError('Expected product to be non-null');
  }

  return KnotSuccess(
      merchant: json["merchant"],
      product: product
  );
}