fromJson static method

TransactionRtr? fromJson(dynamic value)

Returns a new TransactionRtr instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static TransactionRtr? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key),
            'Required key "TransactionRtr[$key]" is missing from JSON.');
        assert(json[key] != null,
            'Required key "TransactionRtr[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return TransactionRtr(
      description: mapValueOfType<String>(json, r'description'),
      moneyAmount: mapValueOfType<String>(json, r'money_amount'),
      creditAmount: mapValueOfType<String>(json, r'credit_amount'),
      product: mapValueOfType<String>(json, r'product'),
      couponConsumption: TransactionRtrCouponConsumption.fromJson(
          json[r'coupon_consumption']),
    );
  }
  return null;
}