arazzo: 1.0.1
info:
  title: NASA DONKI Notification Triage
  summary: Poll DONKI space weather notifications and branch to the matching event endpoint for the detail the alert omits.
  description: >-
    The alert-then-detail pattern for a space weather monitor. DONKI
    notifications are the human-readable feed: each message carries a type, an
    issue time, and a prose body, but not the structured event record behind it.
    This workflow polls the notification feed for a window and then branches on
    the message type, pulling solar energetic particle records when the alert is
    an SEP and magnetopause crossing records when it is an MPC, so the caller
    ends up with both the alert and the machine-readable event data over the same
    window. 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: nasaDonkiApi
  url: ../openapi/nasa-donki-openapi.yml
  type: openapi
workflows:
- workflowId: donki-notification-triage
  summary: Poll space weather notifications and resolve SEP or MPC alerts into their structured event records.
  description: >-
    Retrieves DONKI notifications for a date window and branches on the type of
    the first message, fetching solar energetic particle events for SEP alerts
    or magnetopause crossing events for MPC alerts.
  inputs:
    type: object
    required:
    - apiKey
    properties:
      apiKey:
        type: string
        description: NASA API key from api.nasa.gov. DEMO_KEY works for low-volume testing.
        default: DEMO_KEY
      startDate:
        type: string
        format: date
        description: Start of the notification window (YYYY-MM-DD). DONKI defaults to 30 days prior.
      endDate:
        type: string
        format: date
        description: End of the notification window (YYYY-MM-DD). DONKI defaults to today.
      notificationType:
        type: string
        description: Notification type to poll for. Use "all" to receive every message type.
        default: all
        enum:
        - all
        - FLR
        - SEP
        - CME
        - IPS
        - MPC
        - GST
        - RBE
        - report
  steps:
  - stepId: pollNotifications
    description: >-
      Poll the DONKI notification feed for the window. Each message carries a
      message type, a message ID, the issue time, a URL to the published
      notification, and the prose body a human would read.
    operationId: getDonkiNotifications
    parameters:
    - name: startDate
      in: query
      value: $inputs.startDate
    - name: endDate
      in: query
      value: $inputs.endDate
    - name: type
      in: query
      value: $inputs.notificationType
    - name: api_key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      notifications: $response.body
      firstMessageType: $response.body#/0/messageType
      firstMessageId: $response.body#/0/messageID
      firstMessageUrl: $response.body#/0/messageURL
      firstMessageIssueTime: $response.body#/0/messageIssueTime
      firstMessageBody: $response.body#/0/messageBody
    onSuccess:
    - name: solarEnergeticParticleAlert
      type: goto
      stepId: resolveSolarEnergeticParticles
      criteria:
      - condition: $response.body#/0/messageType == 'SEP'
    - name: magnetopauseCrossingAlert
      type: goto
      stepId: resolveMagnetopauseCrossings
      criteria:
      - condition: $response.body#/0/messageType == 'MPC'
    - name: noStructuredEventToResolve
      type: end
      criteria:
      - condition: $response.body#/0/messageType != 'SEP'
      - condition: $response.body#/0/messageType != 'MPC'
  - stepId: resolveSolarEnergeticParticles
    description: >-
      An SEP alert means energetic particles were detected. Pull the structured
      solar energetic particle records for the same window, which report the
      event ID, event time, and the instruments that made the detection.
    operationId: getSolarEnergeticParticles
    parameters:
    - name: startDate
      in: query
      value: $inputs.startDate
    - name: endDate
      in: query
      value: $inputs.endDate
    - name: api_key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      solarEnergeticParticles: $response.body
      firstSepId: $response.body#/0/sepID
      firstSepEventTime: $response.body#/0/eventTime
      firstSepInstrument: $response.body#/0/instruments/0/displayName
    onSuccess:
    - name: sepResolved
      type: end
  - stepId: resolveMagnetopauseCrossings
    description: >-
      An MPC alert means the magnetopause was compressed inside geosynchronous
      orbit. Pull the structured magnetopause crossing records for the same
      window.
    operationId: getMagnetopauseCrossings
    parameters:
    - name: startDate
      in: query
      value: $inputs.startDate
    - name: endDate
      in: query
      value: $inputs.endDate
    - name: api_key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      magnetopauseCrossings: $response.body
  outputs:
    notifications: $steps.pollNotifications.outputs.notifications
    firstMessageType: $steps.pollNotifications.outputs.firstMessageType
    firstMessageUrl: $steps.pollNotifications.outputs.firstMessageUrl
    solarEnergeticParticles: $steps.resolveSolarEnergeticParticles.outputs.solarEnergeticParticles
    magnetopauseCrossings: $steps.resolveMagnetopauseCrossings.outputs.magnetopauseCrossings