Netter step-output API

openapi: 3.1.0
info:
  title: DMI Backend actions step-output API
  version: 0.1.0
tags:
- name: step-output
paths:
  /api/v1/steps/{step_id}/output:
    get:
      tags:
      - step-output
      summary: Get Step Output
      description: Return schema + 20-row sample (or scalar JSON) for a step's latest output.
      operationId: get_step_output_api_v1_steps__step_id__output_get
      parameters:
      - name: step_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Step Id
      - name: table
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Output table name for multi-output steps
          title: Table
        description: Output table name for multi-output steps
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StepOutputResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /api/v1/steps/{step_id}/output/query:
    post:
      tags:
      - step-output
      summary: Query Step Output
      description: Run a DuckDB SQL query over the step's latest Parquet output (table alias 'data').
      operationId: query_step_output_api_v1_steps__step_id__output_query_post
      parameters:
      - name: step_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Step Id
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 10000
          default: 1000
          title: Limit
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/StepOutputQueryRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DataQueryResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    DataQueryResponse:
      properties:
        columns:
          items:
            type: string
          type: array
          title: Columns
        rows:
          items:
            additionalProperties: true
            type: object
          type: array
          title: Rows
        total_rows:
          type: integer
          title: Total Rows
        truncated:
          type: boolean
          title: Truncated
      type: object
      required:
      - columns
      - rows
      - total_rows
      - truncated
      title: DataQueryResponse
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    StepRunSummary:
      properties:
        status:
          type: string
          title: Status
        started_at:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Started At
        finished_at:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Finished At
      type: object
      required:
      - status
      title: StepRunSummary
    StepOutputSchemaField:
      properties:
        name:
          type: string
          title: Name
        type:
          type: string
          title: Type
      type: object
      required:
      - name
      - type
      title: StepOutputSchemaField
    StepOutputResponse:
      properties:
        format:
          type: string
          title: Format
        table:
          anyOf:
          - type: string
          - type: 'null'
          title: Table
        available_tables:
          anyOf:
          - items:
              type: string
            type: array
          - type: 'null'
          title: Available Tables
        schema:
          anyOf:
          - items:
              $ref: '#/components/schemas/StepOutputSchemaField'
            type: array
          - type: 'null'
          title: Schema
        rows:
          anyOf:
          - items:
              additionalProperties: true
              type: object
            type: array
          - type: 'null'
          title: Rows
        row_count_sample:
          anyOf:
          - type: integer
          - type: 'null'
          title: Row Count Sample
        row_count_total:
          anyOf:
          - type: integer
          - type: 'null'
          title: Row Count Total
        meta:
          anyOf:
          - additionalProperties: true
            type: object
          - type: 'null'
          title: Meta
        value:
          anyOf:
          - additionalProperties: true
            type: object
          - type: 'null'
          title: Value
        step_run:
          $ref: '#/components/schemas/StepRunSummary'
      type: object
      required:
      - format
      - step_run
      title: StepOutputResponse
    StepOutputQueryRequest:
      properties:
        sql:
          type: string
          title: Sql
        table:
          anyOf:
          - type: string
          - type: 'null'
          title: Table
      type: object
      required:
      - sql
      title: StepOutputQueryRequest