CODE EXAMPLE FOR JAVASCRIPT

json to dart

class CoursesModel {
  List<Data>? data;

  CoursesModel({this.data});

  CoursesModel.fromJson(Map<String, dynamic> json) {
    if (json['data'] != null) {
      data = <Data>[];
      json['data'].forEach((v) {
        data!.add(new Data.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    if (this.data != null) {
      data['data'] = this.data!.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

class Data {
  int? id;
  String? status;
  String? createdOn;
  String? title;
  Thumbnail? thumbnail;
  String? summery;
  String? slug;
  Category? category;
  String? link;
  String? coupon;

  Data(
      {this.id,
      this.status,
      this.createdOn,
      this.title,
      this.thumbnail,
      this.summery,
      this.slug,
      this.category,
      this.link,
      this.coupon});

  Data.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    status = json['status'];
    createdOn = json['created_on'];
    title = json['title'];
    thumbnail = json['thumbnail'] != null
        ? new Thumbnail.fromJson(json['thumbnail'])
        : null;
    summery = json['summery'];
    slug = json['slug'];
    category = json['category'] != null
        ? new Category.fromJson(json['category'])
        : null;
    link = json['link'];
    coupon = json['coupon'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['status'] = this.status;
    data['created_on'] = this.createdOn;
    data['title'] = this.title;
    if (this.thumbnail != null) {
      data['thumbnail'] = this.thumbnail!.toJson();
    }
    data['summery'] = this.summery;
    data['slug'] = this.slug;
    if (this.category != null) {
      data['category'] = this.category!.toJson();
    }
    data['link'] = this.link;
    data['coupon'] = this.coupon;
    return data;
  }
}

class Thumbnail {
  Data? data;

  Thumbnail({this.data});

  Thumbnail.fromJson(Map<String, dynamic> json) {
    data = json['data'] != null ? new Data.fromJson(json['data']) : null;
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    if (this.data != null) {
      data['data'] = this.data!.toJson();
    }
    return data;
  }
}

class Data {
  String? fullUrl;
  String? url;
  String? assetUrl;
  List<Thumbnails>? thumbnails;
  Null? embed;

  Data({this.fullUrl, this.url, this.assetUrl, this.thumbnails, this.embed});

  Data.fromJson(Map<String, dynamic> json) {
    fullUrl = json['full_url'];
    url = json['url'];
    assetUrl = json['asset_url'];
    if (json['thumbnails'] != null) {
      thumbnails = <Thumbnails>[];
      json['thumbnails'].forEach((v) {
        thumbnails!.add(new Thumbnails.fromJson(v));
      });
    }
    embed = json['embed'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['full_url'] = this.fullUrl;
    data['url'] = this.url;
    data['asset_url'] = this.assetUrl;
    if (this.thumbnails != null) {
      data['thumbnails'] = this.thumbnails!.map((v) => v.toJson()).toList();
    }
    data['embed'] = this.embed;
    return data;
  }
}

class Thumbnails {
  String? key;
  String? url;
  String? relativeUrl;
  String? dimension;
  int? width;
  int? height;

  Thumbnails(
      {this.key,
      this.url,
      this.relativeUrl,
      this.dimension,
      this.width,
      this.height});

  Thumbnails.fromJson(Map<String, dynamic> json) {
    key = json['key'];
    url = json['url'];
    relativeUrl = json['relative_url'];
    dimension = json['dimension'];
    width = json['width'];
    height = json['height'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['key'] = this.key;
    data['url'] = this.url;
    data['relative_url'] = this.relativeUrl;
    data['dimension'] = this.dimension;
    data['width'] = this.width;
    data['height'] = this.height;
    return data;
  }
}

class Category {
  int? id;

  Category({this.id});

  Category.fromJson(Map<String, dynamic> json) {
    id = json['id'];
  }

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