Nace Ai health API

openapi: 3.1.0
info:
  title: NDI Service health API
  description: Nace Document Intelligence Service API
  version: 0.1.0
tags:
- name: health
paths:
  /api/v1/health/load:
    get:
      tags:
      - health
      summary: Get Load Probe
      description: "Return per-status (and per-action) row counts for the calling client.\n\nThe query is two ``GROUP BY`` selects against ``api_requests``:\n\n1. Status totals across all rows belonging to the client (cheap; the\n   table is partitioned by client in production and ``status`` is\n   cardinality-bounded).\n2. Status × action totals filtered to ``created_at >= now() - window``\n   (uses the existing ``(client, created_at)`` index).\n\nBoth queries are read-only and idempotent — safe to poll at 1 Hz."
      operationId: get_load_probe_api_v1_health_load_get
      security:
      - APIKeyHeader: []
      parameters:
      - name: window_seconds
        in: query
        required: false
        schema:
          type: integer
          maximum: 86400
          minimum: 1
          description: Window for the ``in_window`` counts, measured from ``created_at``.
          default: 300
          title: Window Seconds
        description: Window for the ``in_window`` counts, measured from ``created_at``.
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LoadProbeResponse'
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Bad Request
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Unauthorized
        '402':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Payment Required
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Not Found
        '409':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Conflict
        '413':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Request Entity Too Large
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Unprocessable Entity
        '500':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Internal Server Error
        '503':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Service Unavailable
components:
  schemas:
    LoadProbeResponse:
      properties:
        client:
          type: string
          title: Client
        window_seconds:
          type: integer
          title: Window Seconds
        sampled_at:
          type: string
          format: date-time
          title: Sampled At
        in_flight:
          $ref: '#/components/schemas/StatusCounts'
          description: Counts across all rows (any age).
        in_window:
          $ref: '#/components/schemas/StatusCounts'
          description: Counts for rows created within ``window_seconds``.
        in_window_by_action:
          $ref: '#/components/schemas/ActionCounts'
          description: Per-action breakdown for rows created within ``window_seconds``.
      additionalProperties: false
      type: object
      required:
      - client
      - window_seconds
      - sampled_at
      - in_flight
      - in_window
      - in_window_by_action
      title: LoadProbeResponse
      description: 'Server-side snapshot of ``api_requests`` for the calling client.


        Both ``window_seconds`` and the total counts are returned so callers

        can compute throughput (window counts) and saturation (in-flight =

        ``pending`` + ``running``) without having to do their own arithmetic.'
    ActionCounts:
      properties:
        parse:
          $ref: '#/components/schemas/StatusCounts'
        ground:
          $ref: '#/components/schemas/StatusCounts'
        extract_region:
          $ref: '#/components/schemas/StatusCounts'
        segment_by_category:
          $ref: '#/components/schemas/StatusCounts'
      additionalProperties: false
      type: object
      title: ActionCounts
      description: Per-action status breakdown.
    StatusCounts:
      properties:
        pending:
          type: integer
          title: Pending
          description: Rows inserted but workflow not yet running.
          default: 0
        running:
          type: integer
          title: Running
          description: Rows the worker has claimed but not finalised.
          default: 0
        succeeded:
          type: integer
          title: Succeeded
          description: Terminal — workflow finished cleanly.
          default: 0
        failed:
          type: integer
          title: Failed
          description: Terminal — workflow surfaced a typed error.
          default: 0
      additionalProperties: false
      type: object
      title: StatusCounts
      description: Row counts for ``api_requests`` grouped by terminal/non-terminal state.
    ErrorResponse:
      properties:
        error:
          $ref: '#/components/schemas/ErrorDetail'
      additionalProperties: false
      type: object
      required:
      - error
      title: ErrorResponse
      description: 'Top-level error body returned by every non-2xx response.


        The OpenAPI schema declares this shape so client SDKs can branch on

        ``response.error.code`` deterministically rather than parsing free-form

        ``detail`` strings.'
    ErrorDetail:
      properties:
        code:
          type: string
          title: Code
          description: Stable, machine-readable error code (e.g. ``invalid_payload``).
        message:
          type: string
          title: Message
          description: Human-readable detail about the error.
        request_id:
          type: string
          title: Request Id
          description: Per-request correlation id; matches the ``X-Request-Id`` header.
      additionalProperties: false
      type: object
      required:
      - code
      - message
      - request_id
      title: ErrorDetail
      description: 'Inner error envelope used by :class:`ErrorResponse`.


        ``request_id`` is always populated; callers can quote it back to support

        so we can correlate against logs without having to share the underlying

        Postgres row UUID.'
  securitySchemes:
    APIKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key