IBM Quantum Cancel Running Job

arazzo: 1.0.1
info:
  title: IBM Quantum Cancel Running Job
  summary: Check a job's status and cancel it only if it is still queued or running.
  description: >-
    A guarded cancellation flow. The workflow reads a job's current status and
    branches: if the job is still Queued or Running it issues a cancel request
    and then re-reads the job to confirm the new status; if the job has already
    reached a terminal state it ends without attempting a cancel that the API
    would reject. Each request inlines its bearer token, Service-CRN, and
    IBM-API-Version headers so the flow can be read and executed without opening
    the underlying OpenAPI descriptions.
  version: 1.0.0
sourceDescriptions:
- name: jobsApi
  url: ../openapi/ibm-quantum-jobs-api-openapi.yml
  type: openapi
workflows:
- workflowId: cancel-running-job
  summary: Cancel a job if it is still cancellable, then confirm the outcome.
  description: >-
    Reads a job's status, cancels it when it is queued or running, and re-reads
    the job to confirm the cancellation.
  inputs:
    type: object
    required:
    - accessToken
    - serviceCrn
    - apiVersion
    - jobId
    properties:
      accessToken:
        type: string
        description: IBM Cloud IAM bearer token used in the Authorization header.
      serviceCrn:
        type: string
        description: IBM Cloud Service CRN identifying the Qiskit Runtime instance.
      apiVersion:
        type: string
        description: API version date sent in the IBM-API-Version header (e.g. 2026-03-15).
      jobId:
        type: string
        description: Identifier of the job to inspect and cancel.
  steps:
  - stepId: getJobStatus
    description: >-
      Read the job's current status and branch on whether it is still in a
      cancellable Queued or Running state.
    operationId: get_job
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: Service-CRN
      in: header
      value: $inputs.serviceCrn
    - name: IBM-API-Version
      in: header
      value: $inputs.apiVersion
    - name: id
      in: path
      value: $inputs.jobId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      jobStatus: $response.body#/status
    onSuccess:
    - name: cancellable
      type: goto
      stepId: cancelJob
      criteria:
      - context: $response.body
        condition: $.status == "Queued" || $.status == "Running"
        type: jsonpath
    - name: alreadyTerminal
      type: end
      criteria:
      - context: $response.body
        condition: $.status == "Completed" || $.status == "Failed" || $.status == "Cancelled"
        type: jsonpath
  - stepId: cancelJob
    description: >-
      Issue a cancel request for the still-running job. A 204 confirms the
      cancellation was accepted.
    operationId: cancel_job_jid
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: Service-CRN
      in: header
      value: $inputs.serviceCrn
    - name: IBM-API-Version
      in: header
      value: $inputs.apiVersion
    - name: id
      in: path
      value: $inputs.jobId
    successCriteria:
    - condition: $statusCode == 204
  - stepId: confirmCancelled
    description: >-
      Re-read the job to confirm its status transitioned out of the running
      state after the cancel request.
    operationId: get_job
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: Service-CRN
      in: header
      value: $inputs.serviceCrn
    - name: IBM-API-Version
      in: header
      value: $inputs.apiVersion
    - name: id
      in: path
      value: $inputs.jobId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      finalStatus: $response.body#/status
  outputs:
    finalStatus: $steps.confirmCancelled.outputs.finalStatus