{
  "title": "Select Product and Quantity",
  "type": "object",
  "required": [
    "product_name",
    "product_quantity"
  ],
  "properties": {
    "product_name": {
      "title": "Product Name",
      "type": "string",
      "oneOf": [
        {
          "const": "product_a",
          "title": "A"
        },
        {
          "const": "product_b",
          "title": "B"
        },
        {
          "const": "product_c",
          "title": "C"
        },
        {
          "const": "product_d",
          "title": "D"
        },
        {
          "const": "product_e",
          "title": "E"
        },
        {
          "const": "product_f",
          "title": "F"
        },
        {
          "const": "product_g",
          "title": "G"
        }
      ]
    },
    "product_quantity": {
      "title": "Quantity",
      "type": "integer"
    }
  }
}