Flutter: How to convert a List to JSON - json

Question

I am trying to convert a list to Json and sent this json to DB.
My list is as following
List<DeviceInfo> deviceInfoList = [];
class DeviceInfo {
final String platform;
final String deviceModel;
final bool isPhysicalDevice;
final String deviceId;
final String imei;
final String meid;
final String platformVersion;
final String projectVersion;
final String projectCode;
final String projectAppID;
final String projectName;
DeviceInfo(
{this.platform,
this.platformVersion,
this.deviceModel,
this.isPhysicalDevice,
this.deviceId,
this.imei,
this.meid,
this.projectVersion,
this.projectCode,
this.projectAppID,
this.projectName});
}
My list contain String and boolean, I had go through this example don't know how to Map string and bool in that map function.
Can anyone help me with this?

Answer 1

Map<String,dynamic> toJson(){
return {
"name": this.name,
"number": this.number,
"surname": this.surname,
};
}
static List encondeToJson(List<DeviceInfo>list){
List jsonList = List();
list.map((item)=>
jsonList.add(item.toJson())
).toList();
return jsonList;
}
List jsonList = Device.encondeToJson(deviceInfoList);
print("jsonList: ${jsonList}");
Is the most short way that I remember.

Answer 2

Couple of options that will help encoding and decoding from JSON: the json_serializable package is a great way to have the boilerplate serialize/deserialize code generated for you. There's examples of how to use this (and built_value, which is powerful, but more complicated to use) in the Flutter samples repo.