dart json map to map code example

Example 1: dart map to json string

import 'dart:convert';
...
json.encode(data); // JSON.encode(data) in Dart 1.x

Example 2: dart object to map

class Human {
  String name;
  int age;

  Map<String, dynamic> toMap() {
    return {
      'name': name,
      'age': age,
    };
  }
}