dao_pattern.dart

abstract class ITodoDao{
  
  Future<List<Todo>> findAll();
  
  Future<Todo> findById(int id);
  
  Future<void> delete(int id);
    
}


class PlaceHolderTodoDao implements ITodoDao{
  
  Dio dio;
   
  Future<List<Todo>> findAll() async{
    
    try{
     
     
    }catch(e){
      
    }
  }
  
  Future<Todo> findById(int id) async{
      try{
     
     
    }catch(e){
      
    }
  }
  
  Future<void> delete(int id) async{
      try{
     
     
    }catch(e){
      
    }
  }
}




class Todo{
  int id;
  String title;
  bool completed;
  
 Todo.fromJson(Map<String,dynamic> json){
    id = json["id"];
    title = json["title"];
    completed = json["completed"];
}
  
  Map<String,dynamic> toJson() => 
  {
    "id": id,
    "title": title,
    "completed": completed
  };
}