class GpsData { int id; String team_name; String event_code; double lat; double lon; int created_at; GpsData( {required this.id, required this.team_name, required this.event_code, required this.lat, required this.lon, required this.created_at}); factory GpsData.fromMap(Map json) { return GpsData( id: json["id"], team_name: json["team_name"], event_code: json["event_code"], lat: json["lat"], lon: json["lon"], created_at: json["created_at"]); } Map toMap() { return { 'id': id, 'team_name': team_name, 'event_code': event_code, 'lat': lat, 'lon': lon, 'created_at': created_at }; } }