recordGauge method

@override Future<void> recordGauge({ required String name, required double value, Map<String, String> attributes = const {}, })

Records a gauge metric (current value).

Use for measurements like pool size, active connections. Returns Future<void> to allow for async repository operations.

Implementation

@override
Future<void> recordGauge({
  required String name,
  required double value,
  Map<String, String> attributes = const {},
}) async {
  if (name.isEmpty) {
    throw ArgumentError('Gauge name cannot be empty');
  }
  if (value.isNaN || value.isInfinite) {
    throw ArgumentError('Gauge value must be a valid number');
  }

  await _repository.exportMetric(
    Metric(
      name: name,
      value: value,
      unit: 'count',
      timestamp: DateTime.now().toUtc(),
      attributes: attributes,
    ),
  );
}