dart convert json to model code example

Example 1: parse json to dart model

import 'dart:convert';

main() {
  String nestedObjText =
      '{"title": "Dart Tutorial", "description": "Way to parse Json", "author": {"name": "bezkoder", "age": 30}}';

  Tutorial tutorial = Tutorial.fromJson(jsonDecode(nestedObjText));

  print(tutorial);

Example 2: json to dart

class Autogenerated {
  int postId;
  int id;
  String name;
  String email;
  String body;

  Autogenerated({this.postId, this.id, this.name, this.email, this.body});

  Autogenerated.fromJson(Map<String, dynamic> json) {
    postId = json['postId'];
    id = json['id'];
    name = json['name'];
    email = json['email'];
    body = json['body'];
  }

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

Example 3: convert json to dart

class Todo {
  int userId;
  int id;
  String title;
  bool completed;

  Todo({this.userId, this.id, this.title, this.completed});

  Todo.fromJson(Map<String, dynamic> json) {
    userId = json['userId'];
    id = json['id'];
    title = json['title'];
    completed = json['completed'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['userId'] = this.userId;
    data['id'] = this.id;
    data['title'] = this.title;
    data['completed'] = this.completed;
    return data;
  }
}