json example mapping for https://t.me/rudart

main.dart

/* json example mapping for https://t.me/rudart */

import "dart:math";
import "dart:convert";

void main() {
  String raw = '''
	{"rooms": [
	  {
		"id": "49",
		"name": "Sonata Room 2",
		"rules": "No rules",
		"size": 15,
		"capacity": 12,
		"cancellationPolicy": 24,
		"rating": 0,
		"images": [],
		"instruments": [
		  {
			"id": "99",
			"manufacturer": null,
			"instrumentModel": null,
			"productionYear": null,
			"instrument": {
			  "name": "Cello"
			},
			"room": {
			  "id": "49"
			}
		  }
		],
		"schedule": [
		  {
			"id": "802",
			"roomId": 49,
			"price": 0,
			"priceCurrency": "EUR",
			"priceLoc": 0,
			"priceLocCurrency": "EUR"
		  }
		]
	  }
	]}
	''';
  
  Map<String, dynamic> data = json.decode(raw);
  
  List<Map<String, dynamic>> list = data['rooms'].toList().cast<Map<String, dynamic>>();
  
  print(
    list.map<int>((room) => room["size"])
    .toList()
    .reduce(max)
  ); // 15
}