{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://openbrandexchange.com/schemas/v0.1/VariantInput.json",
  "type": "object",
  "title": "VariantInput",
  "description": "Ingest write model for a variant. Key: external_id (path); default convention = the GTIN, else `<style>-<color>-<size>`.",
  "properties": {
    "product_external_id": {
      "$ref": "Common.json#/$defs/ExternalId"
    },
    "gtin": {
      "anyOf": [
        {
          "$ref": "Common.json#/$defs/GtinInput",
          "description": "Check digit MUST be valid (invalid_gtin). Unique within the node (gtin_conflict)."
        },
        {
          "type": "null"
        }
      ]
    },
    "sku": {
      "type": [
        "string",
        "null"
      ],
      "maxLength": 200
    },
    "color": {
      "$ref": "Color.json"
    },
    "size": {
      "type": [
        "string",
        "null"
      ],
      "maxLength": 64
    },
    "size_system": {
      "type": [
        "string",
        "null"
      ],
      "maxLength": 16
    },
    "status": {
      "$ref": "Common.json#/$defs/PublicationStatus"
    }
  },
  "required": [
    "product_external_id",
    "color"
  ],
  "additionalProperties": false,
  "patternProperties": {
    "^x-[a-z0-9]+-[a-z0-9_-]+$": true
  }
}