handleJsonData function
Implementation
String handleJsonData(String text) {
final jsonResult = jsonDecode(text);
var markers = jsonResult['markers'] as List<dynamic>;
if (markers.isNotEmpty) {
var s = markers.length;
var f = markers[0] as Map<String, dynamic>;
var l = markers[s - 1] as Map<String, dynamic>;
jsonResult['ip'] = f['tm'];
jsonResult['op'] = l['tm'] + l['dr'] + 1;
}
return jsonEncode(jsonResult);
}