Remote Submit And Resolve An Expense

arazzo: 1.0.1
info:
  title: Remote Submit And Resolve An Expense
  summary: Create an expense, confirm it, and approve or decline it.
  description: >-
    Handles an expense from submission through approval. The workflow creates an
    expense for an employment, reads it back to confirm the submitted status,
    and then branches on a caller decision flag: an approval calls the approve
    endpoint while a rejection calls the decline endpoint with a reason. 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: payrollBillingApi
  url: ../openapi/remote-payroll-billing-api-openapi.yml
  type: openapi
workflows:
- workflowId: submit-expense
  summary: Create an expense and approve or decline it.
  description: >-
    Creates an expense, confirms it, and routes to approval or decline based on
    the supplied decision.
  inputs:
    type: object
    required:
    - accessToken
    - employmentId
    - category
    - amount
    - currency
    - expenseDate
    - decision
    properties:
      accessToken:
        type: string
        description: Company-scoped bearer access token.
      employmentId:
        type: string
        description: The employment that incurred the expense.
      category:
        type: string
        description: The expense category.
      amount:
        type: integer
        description: Amount in the smallest currency unit.
      currency:
        type: string
        description: Currency code for the expense.
      expenseDate:
        type: string
        description: Date the expense was incurred (YYYY-MM-DD).
      description:
        type: string
        description: Free-text description of the expense.
      decision:
        type: string
        description: Either approve or decline.
      declineReason:
        type: string
        description: Reason used when the decision is decline.
  steps:
  - stepId: createExpense
    description: Create the expense for the employment.
    operationId: createExpense
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    requestBody:
      contentType: application/json
      payload:
        employment_id: $inputs.employmentId
        category: $inputs.category
        amount: $inputs.amount
        currency: $inputs.currency
        expense_date: $inputs.expenseDate
        description: $inputs.description
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      expenseId: $response.body#/data/expense/id
      status: $response.body#/data/expense/status
  - stepId: confirmExpense
    description: Read the expense back and branch on the caller's decision.
    operationId: showExpense
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: expense_id
      in: path
      value: $steps.createExpense.outputs.expenseId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/data/expense/status
    onSuccess:
    - name: approveBranch
      type: goto
      stepId: approveExpense
      criteria:
      - condition: $inputs.decision == "approve"
    - name: declineBranch
      type: goto
      stepId: declineExpense
      criteria:
      - condition: $inputs.decision == "decline"
  - stepId: approveExpense
    description: Approve the expense.
    operationId: approveExpense
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: expense_id
      in: path
      value: $steps.createExpense.outputs.expenseId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/data/expense/status
    onSuccess:
    - name: approved
      type: end
  - stepId: declineExpense
    description: Decline the expense with the supplied reason.
    operationId: declineExpense
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: expense_id
      in: path
      value: $steps.createExpense.outputs.expenseId
    requestBody:
      contentType: application/json
      payload:
        reason: $inputs.declineReason
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/data/expense/status
  outputs:
    expenseId: $steps.createExpense.outputs.expenseId
    approvedStatus: $steps.approveExpense.outputs.status
    declinedStatus: $steps.declineExpense.outputs.status