Soracom Export Monthly Billing CSV

arazzo: 1.0.1
info:
  title: Soracom Export Monthly Billing CSV
  summary: Read a finalized monthly bill, kick off an async detailed-billing CSV export, and poll until the download URL is ready.
  description: >-
    Produces a downloadable detailed billing CSV for a given month. The workflow
    reads the finalized monthly bill for the target year-month, starts an
    asynchronous export of the detailed billing CSV, and then polls the exported
    file resource until its status flips to exported and a download URL is
    available. The export is initiated in the Billing API while the export
    progress is polled in the Harvest API's Files endpoint. 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: billingApi
  url: ../openapi/soracom-billing-api-openapi.yml
  type: openapi
- name: harvestApi
  url: ../openapi/soracom-harvest-api-openapi.yml
  type: openapi
workflows:
- workflowId: export-monthly-billing
  summary: Read a month's bill, export the detailed CSV asynchronously, and poll for the download URL.
  description: >-
    Reads the monthly bill, starts an async detailed billing CSV export, and
    polls the exported file until status is exported and the URL is available.
  inputs:
    type: object
    required:
    - yyyyMM
    properties:
      yyyyMM:
        type: string
        description: The target year and month in YYYYMM form (e.g. 202208).
  steps:
  - stepId: getBill
    description: >-
      Read the finalized monthly bill for the target month to confirm there is
      a bill to export.
    operationId: getBilling
    parameters:
    - name: yyyyMM
      in: path
      value: $inputs.yyyyMM
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      amount: $response.body#/amount
      state: $response.body#/state
  - stepId: startExport
    description: >-
      Start an asynchronous export of the detailed billing CSV for the month
      and capture the exported file ID for polling.
    operationId: exportBilling
    parameters:
    - name: yyyyMM
      in: path
      value: $inputs.yyyyMM
    - name: export_mode
      in: query
      value: async
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      exportedFileId: $response.body#/exportedFileId
  - stepId: pollExport
    description: >-
      Poll the exported file resource until the export has completed and a
      download URL is available. Repeats while the status is still processing.
    operationId: getExportedFile
    parameters:
    - name: exported_file_id
      in: path
      value: $steps.startExport.outputs.exportedFileId
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.status == "exported"
      type: jsonpath
    outputs:
      status: $response.body#/status
      url: $response.body#/url
    onSuccess:
    - name: exportReady
      type: end
      criteria:
      - context: $response.body
        condition: $.status == "exported"
        type: jsonpath
    onFailure:
    - name: stillProcessing
      type: retry
      retryAfter: 5
      retryLimit: 20
      criteria:
      - context: $response.body
        condition: $.status == "processing"
        type: jsonpath
  outputs:
    exportedFileId: $steps.startExport.outputs.exportedFileId
    downloadUrl: $steps.pollExport.outputs.url