mobile-app/lib/custom_model/Device.dart

class Device {
  int id;
  String name;
  String status;
  String location;

  Device({this.id, this.name, this.status, this.location});

  Device.clone(Device device) {
    this.id = device.id;
    this.name = device.name;
    this.status = device.status;
    this.location = device.location;
  }

  Device.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    name = json['name'];
    status = json['status'];
    location = json['location'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['name'] = this.name;
    data['status'] = this.status;
    data['location'] = this.location;
    return data;
  }
}