Appian Resolve a Named Package and Export It

arazzo: 1.0.1
info:
  title: Appian Resolve a Named Package and Export It
  summary: List an application's packages, branch on whether any packages exist, and export the most recently modified one.
  description: >-
    Resolves a deployable package for an application and exports it, guarding
    against the empty case. The workflow lists the application's in-flight
    packages and branches on the total package count: when no packages exist it
    ends without attempting an export, and when packages are present it exports
    the most recently modified package and polls the export to completion. The
    package list is ordered newest first, so the first entry is always the most
    recently modified. 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: packageApi
  url: ../openapi/appian-application-package-details-openapi.yml
  type: openapi
- name: deploymentApi
  url: ../openapi/appian-deployment-rest-openapi.yml
  type: openapi
workflows:
- workflowId: resolve-and-export-named-package
  summary: List packages, branch on emptiness, and export the newest package.
  description: >-
    Reads the application's packages and either ends when none exist or exports
    the most recently modified package and polls the export to a terminal
    status.
  inputs:
    type: object
    required:
    - apiKey
    - applicationUuid
    properties:
      apiKey:
        type: string
        description: API key linked to a service account, sent in the appian-api-key header.
      applicationUuid:
        type: string
        description: The UUID of the application whose newest package will be exported.
  steps:
  - stepId: listPackages
    description: >-
      List the application's in-flight packages and branch on whether any
      packages are available to export.
    operationId: getApplicationPackages
    parameters:
    - name: appian-api-key
      in: header
      value: $inputs.apiKey
    - name: applicationUuid
      in: path
      value: $inputs.applicationUuid
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      totalPackageCount: $response.body#/totalPackageCount
      newestPackageUuid: $response.body#/packages/0/uuid
      newestPackageName: $response.body#/packages/0/name
    onSuccess:
    - name: noPackages
      type: end
      criteria:
      - context: $response.body
        condition: $.totalPackageCount == 0
        type: jsonpath
    - name: hasPackages
      type: goto
      stepId: exportNewest
      criteria:
      - context: $response.body
        condition: $.totalPackageCount > 0
        type: jsonpath
  - stepId: exportNewest
    description: >-
      Export the most recently modified package by its resolved UUID, setting
      the Action-Type header to export.
    operationId: createDeployment
    parameters:
    - name: appian-api-key
      in: header
      value: $inputs.apiKey
    - name: Action-Type
      in: header
      value: export
    requestBody:
      contentType: multipart/form-data
      payload:
        json:
          exportType: package
          uuids:
          - $steps.listPackages.outputs.newestPackageUuid
          name: $steps.listPackages.outputs.newestPackageName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      deploymentUuid: $response.body#/uuid
      deploymentStatus: $response.body#/status
  - stepId: pollExport
    description: >-
      Poll the export deployment until it leaves the IN_PROGRESS state and
      capture the exported package download URL.
    operationId: getDeploymentResults
    parameters:
    - name: appian-api-key
      in: header
      value: $inputs.apiKey
    - name: deploymentUuid
      in: path
      value: $steps.exportNewest.outputs.deploymentUuid
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.status != "IN_PROGRESS"
      type: jsonpath
    onFailure:
    - name: retryExport
      type: retry
      retryAfter: 5
      retryLimit: 30
      criteria:
      - context: $response.body
        condition: $.status == "IN_PROGRESS"
        type: jsonpath
    outputs:
      exportStatus: $response.body#/status
      packageZip: $response.body#/packageZip
  outputs:
    newestPackageUuid: $steps.listPackages.outputs.newestPackageUuid
    deploymentUuid: $steps.exportNewest.outputs.deploymentUuid
    exportStatus: $steps.pollExport.outputs.exportStatus
    packageZip: $steps.pollExport.outputs.packageZip