json to dart (JtoD)

Welcome to json to dart (JtoD), yet another code generator for data-classes.

Motivation

• convert json to dart data model
• override toString, operator ==, hashCode
• implement a copyWith method to clone the object
• handling de/serialization
• define a constructor + the properties
• Im Mutable and Mutable data types

Usage

• create data model dart file
• paste json
• run the command "JSON to Dart" or alt+d (keyboard shortcut)
• Enter a class name by default is AutoGeneratedCode

Command to execute is

(win or cmd + shift + p) then enter "JSON to dart" Or alt+d

NOTE: key board shortcut is "alt + d"

Examples

Example 1

{
    "name":"praveenD",
    "age":"22",
    "isAdmin":true,
    "order_ids":[1,2,3,4,9,7]
}

Result (user.dart)

class User {
  final String? name;
  final String? age;
  final bool? isAdmin;
  final List<int>? orderIds;
  const User({this.name, this.age, this.isAdmin, this.orderIds});
  User copyWith(
      {String? name, String? age, bool? isAdmin, List<int>? orderIds}) {
    return User(
        name: name ?? this.name,
        age: age ?? this.age,
        isAdmin: isAdmin ?? this.isAdmin,
        orderIds: orderIds ?? this.orderIds);
  }

  Map<String, Object?> toJson() {
    return {'name': name, 'age': age, 'isAdmin': isAdmin, 'orderIds': orderIds};
  }

  static User fromJson(Map<String, Object?> json) {
    return User(
        name: json['name'] == null ? null : json['name'] as String,
        age: json['age'] == null ? null : json['age'] as String,
        isAdmin: json['isAdmin'] == null ? null : json['isAdmin'] as bool,
        orderIds:
            json['orderIds'] == null ? null : json['orderIds'] as List<int>);
  }

  @override
  String toString() {
    return '''User(
                name:$name,
age:$age,
isAdmin:$isAdmin,
orderIds:$orderIds
    ) ''';
  }

  @override
  bool operator ==(Object other) {
    return other is User &&
        other.runtimeType == runtimeType &&
        other.name == name &&
        other.age == age &&
        other.isAdmin == isAdmin &&
        other.orderIds == orderIds;
  }

  @override
  int get hashCode {
    return Object.hash(runtimeType, name, age, isAdmin, orderIds);
  }
}

Example 2

{
    "name":"praveen",
    "age":22,
    "isAdmin":true,
    "order":{
        "order_id":233,
        "product_name":"productNAME",
        "product_price":233.4
    }
}

Result Page (product.dart)

class Product {
  final String? name;
  final int? age;
  final bool? isAdmin;
  final Order? order;
  const Product({this.name, this.age, this.isAdmin, this.order});
  Product copyWith({String? name, int? age, bool? isAdmin, Order? order}) {
    return Product(
        name: name ?? this.name,
        age: age ?? this.age,
        isAdmin: isAdmin ?? this.isAdmin,
        order: order ?? this.order);
  }

  Map<String, Object?> toJson() {
    return {
      'name': name,
      'age': age,
      'isAdmin': isAdmin,
      'order': order?.toJson()
    };
  }

  static Product fromJson(Map<String, Object?> json) {
    return Product(
        name: json['name'] == null ? null : json['name'] as String,
        age: json['age'] == null ? null : json['age'] as int,
        isAdmin: json['isAdmin'] == null ? null : json['isAdmin'] as bool,
        order: json['order'] == null
            ? null
            : Order.fromJson(json['order'] as Map<String, Object?>));
  }

  @override
  String toString() {
    return '''Product(
                name:$name,
age:$age,
isAdmin:$isAdmin,
order:${order.toString()}
    ) ''';
  }

  @override
  bool operator ==(Object other) {
    return other is Product &&
        other.runtimeType == runtimeType &&
        other.name == name &&
        other.age == age &&
        other.isAdmin == isAdmin &&
        other.order == order;
  }

  @override
  int get hashCode {
    return Object.hash(runtimeType, name, age, isAdmin, order);
  }
}

class Order {
  final int? orderId;
  final String? productName;
  final double? productPrice;
  const Order({this.orderId, this.productName, this.productPrice});
  Order copyWith({int? orderId, String? productName, double? productPrice}) {
    return Order(
        orderId: orderId ?? this.orderId,
        productName: productName ?? this.productName,
        productPrice: productPrice ?? this.productPrice);
  }

  Map<String, Object?> toJson() {
    return {
      'orderId': orderId,
      'productName': productName,
      'productPrice': productPrice
    };
  }

  static Order fromJson(Map<String, Object?> json) {
    return Order(
        orderId: json['orderId'] == null ? null : json['orderId'] as int,
        productName:
            json['productName'] == null ? null : json['productName'] as String,
        productPrice: json['productPrice'] == null
            ? null
            : json['productPrice'] as double);
  }

  @override
  String toString() {
    return '''Order(
                orderId:$orderId,
productName:$productName,
productPrice:$productPrice
    ) ''';
  }

  @override
  bool operator ==(Object other) {
    return other is Order &&
        other.runtimeType == runtimeType &&
        other.orderId == orderId &&
        other.productName == productName &&
        other.productPrice == productPrice;
  }

  @override
  int get hashCode {
    return Object.hash(runtimeType, orderId, productName, productPrice);
  }
}

Demo

example 1

example 2