fromJson static method

IncentiveDetails? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static IncentiveDetails? 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(() {
      assert(json.containsKey(r'amount'),
          'Required key "IncentiveDetails[amount]" is missing from JSON.');
      assert(json[r'amount'] != null,
          'Required key "IncentiveDetails[amount]" has a null value in JSON.');
      assert(json.containsKey(r'unit'),
          'Required key "IncentiveDetails[unit]" is missing from JSON.');
      assert(json[r'unit'] != null,
          'Required key "IncentiveDetails[unit]" has a null value in JSON.');
      assert(json.containsKey(r'display'),
          'Required key "IncentiveDetails[display]" is missing from JSON.');
      assert(json[r'display'] != null,
          'Required key "IncentiveDetails[display]" has a null value in JSON.');
      assert(json.containsKey(r'type'),
          'Required key "IncentiveDetails[type]" is missing from JSON.');
      assert(json[r'type'] != null,
          'Required key "IncentiveDetails[type]" has a null value in JSON.');
      return true;
    }());

    return IncentiveDetails(
      amount: mapValueOfType<double>(json, r'amount')!,
      unit: IncentiveUnit.fromJson(json[r'unit'])!,
      display: mapValueOfType<String>(json, r'display')!,
      type: IncentiveType.fromJson(json[r'type'])!,
    );
  }
  return null;
}