openapi: 3.1.0
info:
  title: Qlik Sense Enterprise Qlik Sense Service About Notification API
  description: REST API for retrieving product information about a Qlik Sense site, including system details, installed components, external URLs, and third-party software information. The About Service API provides read-only endpoints that return JSON-formatted information about the Qlik Sense deployment.
  version: 2025.11.0
  contact:
    name: Qlik Support
    url: https://community.qlik.com/
  license:
    name: Proprietary
    url: https://www.qlik.com/us/legal/terms-of-use
  x-providerName: Qlik
  x-serviceName: qlik-sense-about-service
servers:
- url: https://{server}/api/about/v1
  description: About Service API via HTTPS
  variables:
    server:
      default: localhost
      description: Qlik Sense server hostname
security:
- xrfkey: []
tags:
- name: Notification
  description: Subscribe to and manage change notifications
paths:
  /notification:
    post:
      operationId: createNotificationSubscription
      summary: Qlik Sense Enterprise Subscribe to change notifications
      description: Creates a subscription to receive notifications when changes occur to specified entity types or individual entities.
      tags:
      - Notification
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/NotificationSubscription'
      responses:
        '201':
          description: Notification subscription created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotificationSubscription'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
    delete:
      operationId: removeNotificationSubscription
      summary: Qlik Sense Enterprise Remove change notification subscription
      description: Removes an existing notification subscription. The subscription handle is passed as a query parameter.
      tags:
      - Notification
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - name: handle
        in: query
        required: true
        description: Handle identifying the notification subscription to remove
        schema:
          type: string
      responses:
        '204':
          description: Subscription removed successfully
        '401':
          $ref: '#/components/responses/Unauthorized'
  /notification/changes:
    get:
      operationId: getNotificationChanges
      summary: Qlik Sense Enterprise Get changes since last check
      description: Retrieves a list of changes that have occurred since the last time this endpoint was called for the given subscription.
      tags:
      - Notification
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - name: since
        in: query
        description: Timestamp to retrieve changes since
        schema:
          type: string
          format: date-time
      responses:
        '200':
          description: Change notifications returned successfully
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ChangeNotification'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    Unauthorized:
      description: Authentication failed. The request lacks valid authentication credentials or the Xrfkey header/parameter is missing or mismatched.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    BadRequest:
      description: Invalid request. The request body or parameters are malformed.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    ChangeNotification:
      type: object
      properties:
        objectType:
          type: string
          description: Type of entity that changed
        objectID:
          type: string
          format: uuid
          description: ID of the entity that changed
        changedProperties:
          type: array
          items:
            type: string
          description: List of properties that were modified
        engineID:
          type: string
        changeType:
          type: string
          description: Type of change (Add, Update, Delete)
    NotificationSubscription:
      type: object
      properties:
        handle:
          type: string
          description: Subscription handle for managing the subscription
        type:
          type: string
          description: Entity type to subscribe to notifications for
        id:
          type: string
          format: uuid
          description: Optional specific entity ID to subscribe to
        condition:
          type: string
          description: Optional filter condition for the subscription
    Error:
      type: object
      properties:
        message:
          type: string
          description: Human-readable error message
  parameters:
    XrfKeyParam:
      name: Xrfkey
      in: query
      required: true
      description: Cross-site request forgery prevention key. Must be 16 arbitrary characters matching the X-Qlik-Xrfkey header value.
      schema:
        type: string
        minLength: 16
        maxLength: 16
  securitySchemes:
    xrfkey:
      type: apiKey
      in: header
      name: X-Qlik-Xrfkey
      description: Cross-site request forgery prevention key. Must be 16 arbitrary characters and must match the Xrfkey query parameter.