Answers for "dart to json"

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);

flutter generate json files

flutter packages pub run build_runner build

json to dart

class Autogenerated {
  int userId;
  int id;
  String title;
  String body;

  Autogenerated({this.userId, this.id, this.title, this.body});

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

  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['body'] = this.body;
    return data;
  }
}

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;
  }
}

json to dart

class posts {
  int idPost;
  String datePost;
  String objectPost;
  String contenuPost;
  double latitude;
  double longitude;
  List<Null> fichiers;
  Null domaine;
  List<Null> partages;
  Null user;
  List<Null> commentaireCorpsMetiers;
  Null post;
  List<Null> sousPost;
  List<Null> votes;
  List<Null> likes;

  posts(
      {this.idPost,
      this.datePost,
      this.objectPost,
      this.contenuPost,
      this.latitude,
      this.longitude,
      this.fichiers,
      this.domaine,
      this.partages,
      this.user,
      this.commentaireCorpsMetiers,
      this.post,
      this.sousPost,
      this.votes,
      this.likes});

  posts.fromJson(Map<String, dynamic> json) {
    idPost = json['id_post'];
    datePost = json['date_post'];
    objectPost = json['object_post'];
    contenuPost = json['contenu_post'];
    latitude = json['latitude'];
    longitude = json['longitude'];
    if (json['fichiers'] != null) {
      fichiers = new List<Null>();
      json['fichiers'].forEach((v) {
        fichiers.add(new Null.fromJson(v));
      });
    }
    domaine = json['domaine'];
    if (json['partages'] != null) {
      partages = new List<Null>();
      json['partages'].forEach((v) {
        partages.add(new Null.fromJson(v));
      });
    }
    user = json['user'];
    if (json['commentaire_corpsMetiers'] != null) {
      commentaireCorpsMetiers = new List<Null>();
      json['commentaire_corpsMetiers'].forEach((v) {
        commentaireCorpsMetiers.add(new Null.fromJson(v));
      });
    }
    post = json['post'];
    if (json['sous_post'] != null) {
      sousPost = new List<Null>();
      json['sous_post'].forEach((v) {
        sousPost.add(new Null.fromJson(v));
      });
    }
    if (json['votes'] != null) {
      votes = new List<Null>();
      json['votes'].forEach((v) {
        votes.add(new Null.fromJson(v));
      });
    }
    if (json['likes'] != null) {
      likes = new List<Null>();
      json['likes'].forEach((v) {
        likes.add(new Null.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id_post'] = this.idPost;
    data['date_post'] = this.datePost;
    data['object_post'] = this.objectPost;
    data['contenu_post'] = this.contenuPost;
    data['latitude'] = this.latitude;
    data['longitude'] = this.longitude;
    if (this.fichiers != null) {
      data['fichiers'] = this.fichiers.map((v) => v.toJson()).toList();
    }
    data['domaine'] = this.domaine;
    if (this.partages != null) {
      data['partages'] = this.partages.map((v) => v.toJson()).toList();
    }
    data['user'] = this.user;
    if (this.commentaireCorpsMetiers != null) {
      data['commentaire_corpsMetiers'] =
          this.commentaireCorpsMetiers.map((v) => v.toJson()).toList();
    }
    data['post'] = this.post;
    if (this.sousPost != null) {
      data['sous_post'] = this.sousPost.map((v) => v.toJson()).toList();
    }
    if (this.votes != null) {
      data['votes'] = this.votes.map((v) => v.toJson()).toList();
    }
    if (this.likes != null) {
      data['likes'] = this.likes.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

dart to json

class Testing {
  String guid;
  int index;
  String favoriteFruit;
  double latitude;
  String company;
  String email;
  String picture;
  List<String> tags;
  String registered;
  String eyeColor;
  String phone;
  String address;
  List<Friends> friends;
  bool isActive;
  String about;
  String balance;
  String name;
  String gender;
  int age;
  String greeting;
  double longitude;
  String sId;

  Testing(
      {this.guid,
      this.index,
      this.favoriteFruit,
      this.latitude,
      this.company,
      this.email,
      this.picture,
      this.tags,
      this.registered,
      this.eyeColor,
      this.phone,
      this.address,
      this.friends,
      this.isActive,
      this.about,
      this.balance,
      this.name,
      this.gender,
      this.age,
      this.greeting,
      this.longitude,
      this.sId});

  Testing.fromJson(Map<String, dynamic> json) {
    guid = json['guid'];
    index = json['index'];
    favoriteFruit = json['favoriteFruit'];
    latitude = json['latitude'];
    company = json['company'];
    email = json['email'];
    picture = json['picture'];
    tags = json['tags'].cast<String>();
    registered = json['registered'];
    eyeColor = json['eyeColor'];
    phone = json['phone'];
    address = json['address'];
    if (json['friends'] != null) {
      friends = new List<Friends>();
      json['friends'].forEach((v) {
        friends.add(new Friends.fromJson(v));
      });
    }
    isActive = json['isActive'];
    about = json['about'];
    balance = json['balance'];
    name = json['name'];
    gender = json['gender'];
    age = json['age'];
    greeting = json['greeting'];
    longitude = json['longitude'];
    sId = json['_id'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['guid'] = this.guid;
    data['index'] = this.index;
    data['favoriteFruit'] = this.favoriteFruit;
    data['latitude'] = this.latitude;
    data['company'] = this.company;
    data['email'] = this.email;
    data['picture'] = this.picture;
    data['tags'] = this.tags;
    data['registered'] = this.registered;
    data['eyeColor'] = this.eyeColor;
    data['phone'] = this.phone;
    data['address'] = this.address;
    if (this.friends != null) {
      data['friends'] = this.friends.map((v) => v.toJson()).toList();
    }
    data['isActive'] = this.isActive;
    data['about'] = this.about;
    data['balance'] = this.balance;
    data['name'] = this.name;
    data['gender'] = this.gender;
    data['age'] = this.age;
    data['greeting'] = this.greeting;
    data['longitude'] = this.longitude;
    data['_id'] = this.sId;
    return data;
  }
}

class Friends {
  int id;
  String name;

  Friends({this.id, this.name});

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

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