data property
The URL this source loads its GeoJSON from.
Returns null if you passed inline GeoJSON. The map does not keep a copy of inline data, so keep your own copy if you need it later. To read the features back from the map, use MapboxMap.querySourceFeatures or MapboxMap.queryRenderedFeatures.
Implementation
Future<String?> get data async {
final localStyle = style;
if (localStyle == null) return null;
final raw = (await localStyle.getStyleSourceProperty(id, "data")).value;
if (raw == null) return null;
return raw as String;
}