class Product {

  // Properties

  String id;

  String name;

  double price;

  int stockQuantity;

  List<String> categories;

​

  // Constructor

  Product({

    required this.id,

    required this.name,

    required this.price,

    required this.stockQuantity,

    required this.categories,

  });

​

  // Factory constructor for creating products from JSON data

  factory Product.fromJson(Map<String, dynamic> json) {

    return Product(

      id: json['id'] as String,

      name: json['name'] as String,

      price: json['price'] as double,

      stockQuantity: json['stockQuantity'] as int,

      categories: List<String>.from(json['categories'] as List<dynamic>),

    );

  }

​

  // Method to display product details

  void displayProductInfo() {

    print('Product ID: $id');

    print('Name: $name');

    print('Price: \$${price.toStringAsFixed(2)}');

    print('Stock Quantity: $stockQuantity');

    print('Categories: ${categories.join(', ')}');

  }

​

  // Method to check if the product is in stock

  bool isInStock() {

    return stockQuantity > 0;

  }

}