class ConsumptionModel { String tank_name = ''; String water_level=''; String block=''; String type_of_water=''; String capacity=''; String location=''; String consumedWater=''; ConsumptionModel(); factory ConsumptionModel.fromJson(Map json){ ConsumptionModel rtvm = new ConsumptionModel(); rtvm.tank_name = json['tankname'] ?? ''; rtvm.consumedWater = json['totalConsumption'].toString() ?? ''; rtvm.block = json['block'].toString() ?? ''; rtvm.type_of_water = json['TypeofWater'].toString() ?? ''; rtvm.capacity = json['capacity'].toString() ?? ''; rtvm.location = json['location'].toString() ?? ''; rtvm.water_level = json['waterlevel'].toString() ?? ''; return rtvm; } Map toJson() => { "tankname":this.tank_name, "waterLevel": this.water_level , }; }