> ## Documentation Index
> Fetch the complete documentation index at: https://docs.domino.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Get distinct field values

> Get distinct values for a specific field with optional search filtering. Supports fileName extraction from multiple document sources.



## OpenAPI

````yaml /api-specs/cloud/public-api.json get /api/audittrail/v1/fieldValues
openapi: 3.0.3
info:
  title: Domino Public API
  description: Reference for Domino's public REST API endpoints.
  version: 6.4.0
  x-catalog-key: nucleus
servers:
  - url: https://mycluster.domino.tech
    description: >-
      Replace 'mycluster.domino.tech' with your Domino cluster hostname. For
      Domino Cloud customers, that is `your-subdomain`.domino.tech (e.g.,
      acme.domino.tech). For self-hosted deployments, it is the hostname you
      reach the Domino UI at.
security: []
tags:
  - name: Projects
  - name: Project templates
  - name: Workspaces
  - name: Jobs
  - name: HPC Jobs
  - name: Environments
  - name: Hardware Tiers
  - name: Datasets
  - name: Data Sources
  - name: GenAI
  - name: AI Systems
  - name: Apps
  - name: App versions
  - name: App instances
  - name: Model APIs
  - name: Registered models
  - name: Model deployment
  - name: Extensions
  - name: Cost and billing
  - name: Users and organizations
  - name: Service accounts
  - name: Personal Access Tokens
  - name: Personal Access Tokens (admin)
  - name: Audit Trail
  - name: Custom metrics
  - name: PPM
  - name: Model Monitoring models
  - name: Model Monitoring drift and quality
  - name: Model Monitoring settings
  - name: Model Monitoring authentication
  - name: Governance bundles
  - name: Governance policies
  - name: Governance evidence and results
  - name: Governance operations
  - name: NetApp Volumes
  - name: NetApp Volumes snapshots
  - name: NetApp Volumes filesystems
  - name: NetApp Volumes transfers
  - name: Tags
  - name: Properties
externalDocs:
  description: OpenAPI
  url: https://swagger.io/resources/open-api/
paths:
  /api/audittrail/v1/fieldValues:
    get:
      tags:
        - Audit Trail
      description: >-
        Get distinct values for a specific field with optional search filtering.
        Supports fileName extraction from multiple document sources.
      operationId: getDistinctFieldValues
      parameters:
        - description: >-
            The field name to get distinct values for (e.g., actorName,
            datasetName, fileName)
          examples:
            actorName:
              description: Get distinct actor names
              value: actorName
            datasetName:
              description: Get distinct dataset names
              value: datasetName
            fileName:
              description: Extract distinct file names from audit events
              value: fileName
          in: query
          name: field
          required: true
          schema:
            type: string
        - description: >-
            Optional search text to filter the distinct values (case-insensitive
            partial match)
          examples:
            extension_search:
              description: Find all fileName values containing 'pdf'
              value: pdf
            file_search:
              description: Find all fileName values containing 'screenshot'
              value: screenshot
          in: query
          name: search
          required: false
          schema:
            type: string
      responses:
        '200':
          content:
            application/json:
              examples:
                fileName_response:
                  summary: Response for fileName field
                  value:
                    column: fileName
                    count: 3
                    values:
                      - document.pdf
                      - screenshot.png
                      - data.csv
              schema:
                $ref: '#/components/schemas/DistinctValuesResponse'
          description: Distinct field values matching the search criteria
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: Bad request - invalid field name
      security:
        - DominoApiKey: []
        - BearerAuthentication: []
components:
  schemas:
    DistinctValuesResponse:
      properties:
        column:
          description: The field name that was queried
          type: string
        count:
          description: Number of distinct values returned
          type: integer
        values:
          description: Array of distinct values found
          items:
            type: string
          type: array
      required:
        - column
        - values
        - count
      type: object
    Error:
      allOf:
        - properties:
            errors:
              description: What caused the request to fail
              items:
                type: string
              type: array
            requestId:
              description: Id used to correlate a request with server actions.
              example: bbd78579-93c4-45ee-a983-0d5c8da6d5b1
              type: string
          required:
            - errors
  securitySchemes:
    DominoApiKey:
      type: apiKey
      in: header
      name: X-Domino-Api-Key
    BearerAuthentication:
      type: apiKey
      name: Authorization
      in: header

````

## Related topics

- [Get filterable fields](/api-reference/ai-systems/get-filterable-fields.md)
- [Get property values for an entity](/api-reference/properties/get-property-values-for-an-entity.md)
- [Get the live diff for a completed extension install snapshot](/api-reference/extensions/get-the-live-diff-for-a-completed-extension-install-snapshot.md)
- [Clinical Data Explorer](/cloud/platform-capabilities/features/extensions/data-visualization.md)