db.json

{
  "products": [
    {
      "id": 1,
      "productName": "Laptop",
      "categoryId": "1",
      "unitPrice": 590.1
    },
    {
      "id": 2,
      "productName": "Mouse",
      "categoryId": "1",
      "unitPrice": 100.5
    },
    {
      "id": 3,
      "productName": "Battery",
      "categoryId": "1",
      "unitPrice": 450.99
    },
    {
      "id": 4,
      "productName": "Charging",
      "categoryId": 1,
      "unitPrice": 500
    },
    {
      "id": 5,
      "productName": "Microphone",
      "categoryId": 1,
      "unitPrice": 2500
    },
    {
      "id": 6,
      "productName": "Telephone",
      "categoryId": 1,
      "unitPrice": 17000
    }
  ],
  "categories": [
    {
      "id": 1,
      "categoryName": "Computers"
    },
    {
      "id": 2,
      "categoryName": "Technology"
    }
  ]
}