arazzo: 1.0.1
info:
  title: Shopify Add a Variant to an Existing Product
  summary: Confirm a product exists, add a new variant to it, then read the variant list back.
  description: >-
    Extends an existing product with a new purchasable option. The workflow
    first reads the target product to confirm it exists, adds a new variant with
    its own price, SKU, and option value, and then lists the product's variants
    so the caller can confirm the addition. Every step spells out its request
    inline so the flow can be read and executed without opening the underlying
    OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: shopifyAdminRestApi
  url: ../openapi/shopify-admin-rest-api-openapi.yml
  type: openapi
workflows:
- workflowId: add-variant-to-product
  summary: Add a new variant to an existing product and confirm via the variant list.
  description: >-
    Confirms the product, appends a new variant carrying price and option
    values, and reads the variant list back to verify the addition.
  inputs:
    type: object
    required:
    - productId
    - optionValue
    - price
    properties:
      productId:
        type: integer
        description: The ID of the product to add the variant to.
      optionValue:
        type: string
        description: The value for option1 (e.g. a size or color).
      price:
        type: string
        description: The variant price as a decimal string.
      sku:
        type: string
        description: Stock keeping unit for the new variant.
  steps:
  - stepId: confirmProduct
    description: Read the target product to confirm it exists before adding a variant.
    operationId: getProduct
    parameters:
    - name: product_id
      in: path
      value: $inputs.productId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      productId: $response.body#/product/id
  - stepId: addVariant
    description: >-
      Add a new variant to the confirmed product with its own price, SKU, and
      option value.
    operationId: createProductVariant
    parameters:
    - name: product_id
      in: path
      value: $steps.confirmProduct.outputs.productId
    requestBody:
      contentType: application/json
      payload:
        variant:
          option1: $inputs.optionValue
          price: $inputs.price
          sku: $inputs.sku
          inventory_policy: deny
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      variantId: $response.body#/variant/id
      inventoryItemId: $response.body#/variant/inventory_item_id
  - stepId: listVariants
    description: List the product's variants to confirm the new variant was added.
    operationId: listProductVariants
    parameters:
    - name: product_id
      in: path
      value: $steps.confirmProduct.outputs.productId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      variants: $response.body#/variants
  outputs:
    variantId: $steps.addVariant.outputs.variantId
    inventoryItemId: $steps.addVariant.outputs.inventoryItemId
    variants: $steps.listVariants.outputs.variants