fromJson static method

MmInvoiceLineItem? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static MmInvoiceLineItem? 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 "MmInvoiceLineItem[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "MmInvoiceLineItem[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return MmInvoiceLineItem(
      priceId: mapValueOfType<String>(json, r'price_id'),
      total: mapValueOfType<int>(json, r'total'),
      quantity: mapValueOfType<int>(json, r'quantity'),
      pricePerUnit: mapValueOfType<int>(json, r'price_per_unit'),
      description: mapValueOfType<String>(json, r'description'),
      metadata: json[r'metadata'] is List ? (json[r'metadata'] as List).cast<String>() : const [],
    );
  }
  return null;
}