toJson method Null safety
Implementation
Map<String, dynamic> toJson() => {
"id": id,
"customerID": customerId,
"firstName": firstName,
"lastName": lastName,
"address": address,
"building": building,
"floor": floor,
"apartment": apartment,
"postalCode": postalCode,
"mobile": mobile,
"isDefault": isDefault,
"name": name,
"zoneID": zoneId,
"latitude": latitude,
"longitude": longitude,
"locationUrl": locationUrl,
"city": city == null ? null : city!.toJson(),
"orderCount": orderCount,
};