fetchBusPositions static method

Future<List<BusPosition>> fetchBusPositions(
  1. String apiKey, {
  2. String? routeId,
  3. double? lat,
  4. double? lon,
  5. double? radius,
})

Implementation

static Future<List<BusPosition>> fetchBusPositions(
  String apiKey, {
  String? routeId,
  double? lat,
  double? lon,
  double? radius,
}) async {
  final String host = _buildUrl(
    routeId: routeId,
    lat: lat,
    lon: lon,
    radius: radius,
  );

  final response = await http.get(
    Uri.parse(host),
    headers: {"api_key": apiKey},
  );

  Map<String, dynamic> responseArr = readJson(response.body);

  if (responseArr.isEmpty) return [];

  if (responseArr[ApiFields.busPositions] == null) return [];

  if (responseArr[ApiFields.busPositions] is List) {
    return ((responseArr[ApiFields.busPositions] as List?) ?? [])
        .map((busPosition) => BusPosition.fromJson(busPosition))
        .toList();
  }

  return [];
}