Paystack Create Product and Payment Page

arazzo: 1.0.1
info:
  title: Paystack Create Product and Payment Page
  summary: Create a product, check a page slug is available, create a hosted payment page, then attach the product to the page.
  description: >-
    The no-code checkout setup. A product is added to the inventory, a desired
    page slug is checked for availability, a Paystack-hosted payment page is
    created at that slug, and the product is attached to the page so customers can
    buy it without custom checkout code. 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: pageApi
  url: ../openapi/paystack-page-api-openapi.yml
  type: openapi
- name: productApi
  url: ../openapi/paystack-product-api-openapi.yml
  type: openapi
workflows:
- workflowId: create-product-and-payment-page
  summary: Build a hosted checkout page and attach a product to it.
  description: >-
    Creates a product, checks slug availability, creates a payment page, and adds
    the product to the page.
  inputs:
    type: object
    required:
    - productName
    - description
    - price
    - currency
    - pageName
    - slug
    properties:
      productName:
        type: string
        description: Name of the product.
      description:
        type: string
        description: Description of the product and page.
      price:
        type: integer
        description: Product price in the smallest currency unit.
      currency:
        type: string
        description: Currency for the product price (NGN, GHS, ZAR or USD).
      pageName:
        type: string
        description: Name of the hosted payment page.
      slug:
        type: string
        description: Desired URL slug for the payment page.
  steps:
  - stepId: createProduct
    description: Create the product that will be sold through the hosted page.
    operationId: product_create
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.productName
        description: $inputs.description
        price: $inputs.price
        currency: $inputs.currency
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      productId: $response.body#/data/id
  - stepId: checkSlug
    description: Check that the desired payment page slug is still available.
    operationId: page_checkSlugAvailability
    parameters:
    - name: slug
      in: path
      value: $inputs.slug
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      slugStatus: $response.body#/status
  - stepId: createPage
    description: Create the hosted payment page at the chosen slug.
    operationId: page_create
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.pageName
        description: $inputs.description
        slug: $inputs.slug
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      pageId: $response.body#/data/id
      pageSlug: $response.body#/data/slug
  - stepId: addProductToPage
    description: Attach the created product to the payment page.
    operationId: page_addProducts
    parameters:
    - name: id
      in: path
      value: $steps.createPage.outputs.pageId
    requestBody:
      contentType: application/json
      payload:
        product:
        - $steps.createProduct.outputs.productId
    successCriteria:
    - condition: $statusCode == 201
  outputs:
    productId: $steps.createProduct.outputs.productId
    pageId: $steps.createPage.outputs.pageId
    pageSlug: $steps.createPage.outputs.pageSlug