Dataiku Inspect and Read a Dataset

arazzo: 1.0.1
info:
  title: Dataiku Inspect and Read a Dataset
  summary: List a project's datasets, fetch a dataset definition, and read a sample of its rows.
  description: >-
    Walks the discovery path for a Dataiku DSS dataset. The workflow lists every
    dataset in a project, reads the full definition of the named dataset to
    confirm its type and schema, and then reads a bounded sample of rows from
    the dataset. Every step inlines its request so the flow can be executed
    without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: datasetsApi
  url: ../openapi/dataiku-datasets-api-openapi.yml
  type: openapi
workflows:
- workflowId: inspect-and-read-dataset
  summary: Discover a dataset and read a sample of its rows.
  description: >-
    Lists datasets in a project, gets one dataset definition, and reads a
    limited number of rows from it.
  inputs:
    type: object
    required:
    - apiKey
    - projectKey
    - datasetName
    properties:
      apiKey:
        type: string
        description: DSS API key passed as a Bearer token in the Authorization header.
      projectKey:
        type: string
        description: Project key to inspect.
      datasetName:
        type: string
        description: Name of the dataset to read.
      limit:
        type: integer
        description: Maximum number of rows to return.
        default: 100
  steps:
  - stepId: listDatasets
    description: List all datasets in the project to confirm the target is present.
    operationId: listDatasets
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: projectKey
      in: path
      value: $inputs.projectKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      datasets: $response.body
  - stepId: getDataset
    description: Read the dataset definition to confirm its type and schema.
    operationId: getDataset
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: projectKey
      in: path
      value: $inputs.projectKey
    - name: datasetName
      in: path
      value: $inputs.datasetName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      datasetType: $response.body#/type
      schema: $response.body#/schema
  - stepId: readData
    description: Read a bounded sample of rows from the dataset.
    operationId: getDatasetData
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: projectKey
      in: path
      value: $inputs.projectKey
    - name: datasetName
      in: path
      value: $inputs.datasetName
    - name: limit
      in: query
      value: $inputs.limit
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      columns: $response.body#/columns
      rows: $response.body#/rows
      totalCount: $response.body#/totalCount
  outputs:
    datasetType: $steps.getDataset.outputs.datasetType
    columns: $steps.readData.outputs.columns
    totalCount: $steps.readData.outputs.totalCount