{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.com/schemas/commerce-layer/commerce-layer-sku-schema.json",
  "title": "Commerce Layer SKU",
  "description": "Schema for the Commerce Layer SKU resource — the unit-level entity that connects a catalog item to inventory and pricing. Conforms to JSON:API.",
  "type": "object",
  "required": ["data"],
  "properties": {
    "data": { "$ref": "#/definitions/SkuResource" }
  },
  "definitions": {
    "SkuResource": {
      "type": "object",
      "required": ["type"],
      "properties": {
        "type": { "type": "string", "const": "skus" },
        "id": { "type": "string" },
        "attributes": { "$ref": "#/definitions/SkuAttributes" },
        "relationships": { "$ref": "#/definitions/SkuRelationships" }
      }
    },
    "SkuAttributes": {
      "type": "object",
      "required": ["code","name"],
      "properties": {
        "code": { "type": "string", "description": "Unique stock-keeping unit identifier within the organization." },
        "name": { "type": "string" },
        "description": { "type": "string" },
        "image_url": { "type": "string", "format": "uri" },
        "pieces_per_pack": { "type": "integer" },
        "weight": { "type": "number" },
        "unit_of_weight": { "type": "string", "enum": ["gr","oz","lb","kg"] },
        "hs_tariff_number": { "type": "string", "description": "Harmonized System tariff number for cross-border duty calculation." },
        "do_not_ship": { "type": "boolean", "description": "Digital or non-shippable SKU." },
        "do_not_track": { "type": "boolean", "description": "Skip inventory tracking — treat as infinite stock." },
        "inventory": { "type": "object", "description": "Per-stock-location availability summary." },
        "metadata": { "type": "object" },
        "tags": { "type": "array", "items": { "type": "string" } },
        "created_at": { "type": "string", "format": "date-time" },
        "updated_at": { "type": "string", "format": "date-time" }
      }
    },
    "SkuRelationships": {
      "type": "object",
      "properties": {
        "shipping_category": { "type": "object" },
        "prices": { "type": "object" },
        "stock_items": { "type": "object" },
        "sku_options": { "type": "object" },
        "delivery_lead_times": { "type": "object" },
        "tags": { "type": "object" }
      }
    }
  }
}