Flutter Http response body from String to List of Object - flutter

Question

Hi I am currently trying to fetch some data from an API, for later casting it to my Object Class.
The json answer i receive is instead of a list, directly a String.
{
"00-01": {
"date": "24-08-2022",
"hour": "00-01",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 617.5,
"units": "€/Mwh"
},
"01-02": {
"date": "24-08-2022",
"hour": "01-02",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 640.05,
"units": "€/Mwh"
},
"02-03": {
"date": "24-08-2022",
"hour": "02-03",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 670.26,
"units": "€/Mwh"
},
"03-04": {
"date": "24-08-2022",
"hour": "03-04",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 683.64,
"units": "€/Mwh"
},
"04-05": {
"date": "24-08-2022",
"hour": "04-05",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 692.88,
"units": "€/Mwh"
},
"05-06": {
"date": "24-08-2022",
"hour": "05-06",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 681.87,
"units": "€/Mwh"
},
"06-07": {
"date": "24-08-2022",
"hour": "06-07",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 624.35,
"units": "€/Mwh"
},
"07-08": {
"date": "24-08-2022",
"hour": "07-08",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 624.82,
"units": "€/Mwh"
},
"08-09": {
"date": "24-08-2022",
"hour": "08-09",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 623.24,
"units": "€/Mwh"
},
"09-10": {
"date": "24-08-2022",
"hour": "09-10",
"is-cheap": false,
"is-under-avg": true,
"market": "PVPC",
"price": 558.55,
"units": "€/Mwh"
},
"10-11": {
"date": "24-08-2022",
"hour": "10-11",
"is-cheap": false,
"is-under-avg": true,
"market": "PVPC",
"price": 511.3,
"units": "€/Mwh"
},
"11-12": {
"date": "24-08-2022",
"hour": "11-12",
"is-cheap": false,
"is-under-avg": true,
"market": "PVPC",
"price": 493.36,
"units": "€/Mwh"
},
"12-13": {
"date": "24-08-2022",
"hour": "12-13",
"is-cheap": true,
"is-under-avg": true,
"market": "PVPC",
"price": 484.42,
"units": "€/Mwh"
},
"13-14": {
"date": "24-08-2022",
"hour": "13-14",
"is-cheap": true,
"is-under-avg": true,
"market": "PVPC",
"price": 487.58,
"units": "€/Mwh"
},
"14-15": {
"date": "24-08-2022",
"hour": "14-15",
"is-cheap": true,
"is-under-avg": true,
"market": "PVPC",
"price": 426.72,
"units": "€/Mwh"
},
"15-16": {
"date": "24-08-2022",
"hour": "15-16",
"is-cheap": true,
"is-under-avg": true,
"market": "PVPC",
"price": 418.28,
"units": "€/Mwh"
},
"16-17": {
"date": "24-08-2022",
"hour": "16-17",
"is-cheap": true,
"is-under-avg": true,
"market": "PVPC",
"price": 422.18,
"units": "€/Mwh"
},
"17-18": {
"date": "24-08-2022",
"hour": "17-18",
"is-cheap": true,
"is-under-avg": true,
"market": "PVPC",
"price": 430.63,
"units": "€/Mwh"
},
"18-19": {
"date": "24-08-2022",
"hour": "18-19",
"is-cheap": false,
"is-under-avg": true,
"market": "PVPC",
"price": 495.26,
"units": "€/Mwh"
},
"19-20": {
"date": "24-08-2022",
"hour": "19-20",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 579.65,
"units": "€/Mwh"
},
"20-21": {
"date": "24-08-2022",
"hour": "20-21",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 614.08,
"units": "€/Mwh"
},
"21-22": {
"date": "24-08-2022",
"hour": "21-22",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 625.97,
"units": "€/Mwh"
},
"22-23": {
"date": "24-08-2022",
"hour": "22-23",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 582.99,
"units": "€/Mwh"
},
"23-24": {
"date": "24-08-2022",
"hour": "23-24",
"is-cheap": false,
"is-under-avg": false,
"market": "PVPC",
"price": 617.25,
"units": "€/Mwh"
}
}
I would like to cast that result into a LightHours, where every one would be a class Hour inside.
My main ideas was to get a List<LightHours> = {Hours,...}
Also I have tried to do the following: LightPrice lightPrice = LightPrice.fromJson(jsonDecode(response.body)); but it only gets me every field as null.
But using the json to Dart converter it doesn't allow me.
How could i convert that response into both objects classes?

Answer 1

Something like this maybe works:
List<LightPrice> list = (jsonDecode(response.body) as Map<String,
Map<String, dynamic>>).values.map<LightPrice>((value) =>
LightPrice.fromJson(value)).toList();

Answer 2

//your json string
String jsonString = json.encode(data);
//convert json string to list
List<String> newData = List<String>.from(json.decode(jsonString));
this will help to convert