Intuit Invoice and Collect Payment

arazzo: 1.0.1
info:
  title: Intuit Invoice and Collect Payment
  summary: Raise an invoice and record a customer payment applied against it.
  description: >-
    Closes the loop on a single sale. The workflow creates an Invoice for a
    customer, then records a Payment whose Line links to that invoice through a
    LinkedTxn of TxnType Invoice, and reads the invoice back to confirm the
    balance dropped to zero once the payment was applied. 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: quickbooksAccounting
  url: ../openapi/quickbooks-accounting.yml
  type: openapi
workflows:
- workflowId: invoice-and-collect-payment
  summary: Create an invoice then apply a payment to it.
  description: >-
    Creates an Invoice, records a Payment that links to the invoice, and reads
    the invoice back to confirm the remaining balance.
  inputs:
    type: object
    required:
    - accessToken
    - customerId
    - lineAmount
    - paymentAmount
    properties:
      accessToken:
        type: string
        description: OAuth 2.0 bearer access token for the QuickBooks company.
      customerId:
        type: string
        description: Id of the customer being invoiced and paying.
      lineAmount:
        type: number
        description: Amount of the single invoice line item.
      lineDescription:
        type: string
        description: Description of the invoice line item.
      paymentAmount:
        type: number
        description: Total amount of the payment to record.
  steps:
  - stepId: createInvoice
    description: Raise an invoice for the customer.
    operationId: createInvoice
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    requestBody:
      contentType: application/json
      payload:
        CustomerRef:
          value: $inputs.customerId
        Line:
        - Amount: $inputs.lineAmount
          DetailType: SalesItemLineDetail
          Description: $inputs.lineDescription
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      invoiceId: $response.body#/Invoice/Id
      totalAmt: $response.body#/Invoice/TotalAmt
  - stepId: createPayment
    description: Record a payment that links to the new invoice.
    operationId: createPayment
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    requestBody:
      contentType: application/json
      payload:
        CustomerRef:
          value: $inputs.customerId
        TotalAmt: $inputs.paymentAmount
        Line:
        - Amount: $inputs.paymentAmount
          LinkedTxn:
          - TxnId: $steps.createInvoice.outputs.invoiceId
            TxnType: Invoice
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      paymentId: $response.body#/Payment/Id
      unappliedAmt: $response.body#/Payment/UnappliedAmt
  - stepId: readInvoice
    description: Read the invoice back to confirm the remaining balance.
    operationId: readInvoice
    parameters:
    - name: invoiceId
      in: path
      value: $steps.createInvoice.outputs.invoiceId
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      balance: $response.body#/Invoice/Balance
  outputs:
    invoiceId: $steps.createInvoice.outputs.invoiceId
    paymentId: $steps.createPayment.outputs.paymentId
    balance: $steps.readInvoice.outputs.balance