{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "category_id": {
        "type": "string"
      },
      "category_item_ids": {
        "type": "array",
        "items": {
          "type": "string"
        },
        "minItems": 1
      }
    },
    "required": ["category_id", "category_item_ids"]
  }
}