openapi: 3.1.0
info:
  title: Split Admin Large Segments API
  description: The Split Admin API is a REST API that enables programmatic management of workspaces (projects), environments, traffic types, attributes, users, groups, API keys, and change requests within the Split platform (now Harness Feature Management and Experimentation). The API uses resource-oriented URLs, returns JSON responses, and requires Admin API keys for authentication. All endpoints are prefixed with /internal/api/v2 on the api.split.io host.
  version: '2.0'
  contact:
    name: Split Support
    url: https://help.split.io
  termsOfService: https://www.split.io/terms-of-service/
servers:
- url: https://api.split.io/internal/api/v2
  description: Production Server
security:
- bearerAuth: []
tags:
- name: Large Segments
  description: Manage large segments optimized for high-volume identity lists.
paths:
  /large-segments/ws/{workspaceId}/environments/{environmentId}:
    get:
      operationId: listLargeSegmentsInEnvironment
      summary: List large segments in environment
      description: Retrieves all large segments configured in the specified environment within the given workspace.
      tags:
      - Large Segments
      parameters:
      - $ref: '#/components/parameters/workspaceIdParam'
      - $ref: '#/components/parameters/environmentIdParam'
      - $ref: '#/components/parameters/limitParam'
      - $ref: '#/components/parameters/offsetParam'
      responses:
        '200':
          description: Successful response containing list of large segments
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LargeSegmentList'
        '401':
          description: Unauthorized - invalid or missing API key
        '404':
          description: Workspace or environment not found
components:
  parameters:
    limitParam:
      name: limit
      in: query
      description: Maximum number of results to return per page
      schema:
        type: integer
        minimum: 1
        maximum: 200
        default: 20
    environmentIdParam:
      name: environmentId
      in: path
      required: true
      description: The unique identifier or name of the environment
      schema:
        type: string
    offsetParam:
      name: offset
      in: query
      description: Number of results to skip for pagination
      schema:
        type: integer
        minimum: 0
        default: 0
    workspaceIdParam:
      name: workspaceId
      in: path
      required: true
      description: The unique identifier of the workspace
      schema:
        type: string
  schemas:
    TrafficType:
      type: object
      description: A traffic type defining the kind of entity that feature flags target.
      properties:
        id:
          type: string
          description: Unique identifier for the traffic type
        name:
          type: string
          description: Name of the traffic type (e.g., user, account)
    LargeSegmentList:
      type: object
      description: Paginated list of large segments
      properties:
        objects:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
                description: Name of the large segment
              description:
                type: string
                description: Description of the large segment
              trafficType:
                $ref: '#/components/schemas/TrafficType'
              creationTime:
                type: integer
                format: int64
                description: Timestamp of when the large segment was created
        offset:
          type: integer
          description: Current offset in the result set
        limit:
          type: integer
          description: Maximum number of results returned
        totalCount:
          type: integer
          description: Total number of large segments available
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Admin API key passed as a Bearer token in the Authorization header.
externalDocs:
  description: Split Admin API Documentation
  url: https://docs.split.io/reference/introduction