LineItem

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/woocommerce/refs/heads/main/json-schema/woocommerce-rest-api-line-item-schema.json",
  "title": "LineItem",
  "description": "A product line item within an order.",
  "type": "object",
  "properties": {
    "id": {
      "type": "integer",
      "description": "Line item unique identifier.",
      "example": 1
    },
    "name": {
      "type": "string",
      "description": "Product name at time of purchase.",
      "example": "Example Name"
    },
    "product_id": {
      "type": "integer",
      "description": "Product ID.",
      "example": 1
    },
    "variation_id": {
      "type": "integer",
      "description": "Variation ID (0 if not a variation).",
      "example": 1
    },
    "quantity": {
      "type": "integer",
      "description": "Quantity ordered.",
      "example": 1
    },
    "tax_class": {
      "type": "string",
      "description": "Tax class used for this line item.",
      "example": "string-value"
    },
    "subtotal": {
      "type": "string",
      "description": "Line subtotal (before discounts) as a decimal string.",
      "example": "string-value"
    },
    "subtotal_tax": {
      "type": "string",
      "description": "Line subtotal tax as a decimal string.",
      "example": "string-value"
    },
    "total": {
      "type": "string",
      "description": "Line total (after discounts) as a decimal string.",
      "example": "string-value"
    },
    "total_tax": {
      "type": "string",
      "description": "Line total tax as a decimal string.",
      "example": "string-value"
    },
    "sku": {
      "type": "string",
      "description": "Product SKU.",
      "example": "string-value"
    },
    "price": {
      "type": "number",
      "description": "Product price at time of purchase.",
      "example": 10.5
    },
    "meta_data": {
      "type": "array",
      "description": "Metadata for the line item (e.g. variation attributes).",
      "items": {
        "type": "object",
        "description": "Custom metadata key-value entry.",
        "properties": {
          "id": {
            "type": "integer",
            "description": "Metadata unique identifier.",
            "example": 1
          },
          "key": {
            "type": "string",
            "description": "Metadata key.",
            "example": "string-value"
          },
          "value": {
            "type": "string",
            "description": "Metadata value.",
            "example": "string-value"
          }
        }
      },
      "example": [
        "string-value"
      ]
    }
  }
}