How to insert a List<Class> into a Map<String, dynamic> in dart? - flutter

Question

My problem is that I have a list of the following class:
class ingreso_Egreso_Dummy{
int tipo;
String monto;
String moneda;
String descripcion;
}
then I want to insert the data into a Map which later will be converted into a json and which I am creating like this:
Map<String, dynamic> body;
body = {
"Cod_Prom": "01",
"CodCli": "003526",
"Status": _index_status.toString(),
"NOMBRE": controller_nombre.text,
"APELLIDOS": controller_apellidos.text,
"solicitud":[{
"Cod_Solicit": 1.toString(),
"Fecha": DateFormat("y-d-M").format(DateTime.now()),
"Status_Solicit": "E",}],
"prestamo":[{
"Monto_Solicit":controller_monto_solic.text,
"Plazo":controller_plazo.text,
"Cod_TipoPlazo":_index_tipoplazo.toString(),
"Nombre_Resp":controller_nombreresp.text,
"Telf_Resp":controller_telefonoresp.text,}],
"Ingresos": [{
//// here I want create a loop that returns a map for each value
//// of the list like this:
//// "Descripcion": Listaingresos[i].descripcion;
})
}]
};
Every help is very appreciated, thank you.

Answer 1

// camelCaseStyle is a standard for class names for Dart
class IngresoEgresoDummy {
int tipo;
String monto;
String moneda;
String descripcion;
Map<String, dynamic> toJson(){
return {
'tipo': tipo,
'monto': monto,
'monedo': moneda,
'descripcion': descripcion
};
}
}
and after that
List<IngresoEgresoDummy> listaingresos= List();
Map<String, dynamic> body = {
// all your params
"Ingresos": listaingresos.map((ingreso) => ingreso.toJson()).toList()
// all your params
};