Amazon Neptune SPARQL Query with Status Check

arazzo: 1.0.1
info:
  title: Amazon Neptune SPARQL Query with Status Check
  summary: Run a SPARQL query via the Data API and inspect the SPARQL query queue.
  description: >-
    Executes a SPARQL query against the Neptune RDF store through the Data API and
    pairs it with the SPARQL query-status surface. The workflow first confirms the
    engine is healthy, then submits the supplied SPARQL query as a form-encoded
    request body per the SPARQL 1.1 Protocol, and finally reads the running and
    accepted query counts. 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: neptuneDataApi
  url: ../openapi/amazon-neptune-data-openapi.yml
  type: openapi
workflows:
- workflowId: sparql-query-with-status
  summary: Confirm engine health, run a SPARQL query, and inspect the query queue.
  description: >-
    Checks engine status, executes a SPARQL query through the Data API using a
    form-encoded body, and reads the SPARQL query status surface.
  inputs:
    type: object
    required:
    - query
    properties:
      query:
        type: string
        description: The SPARQL query string (SELECT, ASK, CONSTRUCT, or DESCRIBE).
  steps:
  - stepId: checkEngine
    description: >-
      Confirm the Neptune engine is available and report its SPARQL engine
      version before running the query.
    operationId: getEngineStatus
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      engineStatus: $response.body#/status
      sparqlVersion: $response.body#/sparql/version
  - stepId: runSparql
    description: >-
      Execute the supplied SPARQL query against the RDF store using a
      form-encoded request body and capture the result bindings.
    operationId: executeSparqlQuery
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        query: $inputs.query
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      bindings: $response.body#/results/bindings
  - stepId: inspectQueue
    description: >-
      Read the SPARQL query status surface to report how many queries are
      running and accepted right now.
    operationId: getSparqlQueryStatus
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      runningQueryCount: $response.body#/runningQueryCount
      acceptedQueryCount: $response.body#/acceptedQueryCount
  outputs:
    engineStatus: $steps.checkEngine.outputs.engineStatus
    bindings: $steps.runSparql.outputs.bindings
    runningQueryCount: $steps.inspectQueue.outputs.runningQueryCount