db.json

{
  "posts": [
    {
      "id": 1,
      "name": "Product1",
      "description": "This is a product",
      "vendors": [
        {
          "nameV": "Vendor1",
          "is_main": true,
          "varients": [
            {
              "xs": 20
            },
            {
              "sm": 20
            },
            {
              "l": 30
            },
            {
              "xl": 35
            }
          ]
        }
      ]
    },
    {
      "id": 2,
      "name": "Product2",
      "description": "This is a product",
      "vendors": [
        {
          "nameV": "Vendor2",
          "is_main": true,
          "varients": [
            {
              "xs": 20
            }
          ]
        },
        {
          "name": "Vendor3",
          "is_main": false,
          "varients": [
            {
              "l": 30
            },
            {
              "xl": 35
            }
          ]
        }
      ]
    },
    {
      "id": 3,
      "name": "Product3",
      "vendors": []
    }
  ]
}