openapi: 3.1.0
info:
  title: Qlik Sense Enterprise Qlik Sense Service About Data Connection 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: Data Connection
  description: Manage data connections used by Qlik Sense applications for loading data from external sources
paths:
  /dataconnection:
    get:
      operationId: getDataConnections
      summary: Qlik Sense Enterprise List data connections
      description: Retrieves a list of all data connections in condensed format, optionally filtered by a query expression. Returns connections accessible to the authenticated user based on security rules.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - $ref: '#/components/parameters/FilterParam'
      - $ref: '#/components/parameters/OrderByParam'
      - $ref: '#/components/parameters/PrivilegesParam'
      responses:
        '200':
          description: List of data connections returned successfully
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/DataConnectionCondensed'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createDataConnection
      summary: Qlik Sense Enterprise Create data connection
      description: Creates a new data connection for use by Qlik Sense applications. The connection defines the provider type, connection string, and credentials for accessing an external data source.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DataConnectionCreate'
      responses:
        '201':
          description: Data connection created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DataConnection'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /dataconnection/full:
    get:
      operationId: getDataConnectionsFull
      summary: Qlik Sense Enterprise List data connections with full details
      description: Retrieves a list of all data connections in full format including owner, tags, custom properties, and connection string details.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - $ref: '#/components/parameters/FilterParam'
      - $ref: '#/components/parameters/OrderByParam'
      - $ref: '#/components/parameters/PrivilegesParam'
      responses:
        '200':
          description: Full list of data connections returned successfully
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/DataConnection'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /dataconnection/count:
    get:
      operationId: getDataConnectionsCount
      summary: Qlik Sense Enterprise Count data connections
      description: Returns the number of data connections matching an optional filter expression.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - $ref: '#/components/parameters/FilterParam'
      responses:
        '200':
          description: Data connection count returned successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EntityCount'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /dataconnection/{id}:
    get:
      operationId: getDataConnection
      summary: Qlik Sense Enterprise Get data connection by ID
      description: Retrieves a single data connection by its unique identifier in full format.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - $ref: '#/components/parameters/IdParam'
      - $ref: '#/components/parameters/PrivilegesParam'
      responses:
        '200':
          description: Data connection returned successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DataConnection'
        '404':
          $ref: '#/components/responses/NotFound'
        '401':
          $ref: '#/components/responses/Unauthorized'
    put:
      operationId: updateDataConnection
      summary: Qlik Sense Enterprise Update data connection
      description: Updates an existing data connection. The complete entity including the unchanged modifiedDate must be provided in the request body.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - $ref: '#/components/parameters/IdParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DataConnection'
      responses:
        '200':
          description: Data connection updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DataConnection'
        '404':
          $ref: '#/components/responses/NotFound'
        '409':
          $ref: '#/components/responses/Conflict'
        '401':
          $ref: '#/components/responses/Unauthorized'
    delete:
      operationId: deleteDataConnection
      summary: Qlik Sense Enterprise Delete data connection
      description: Permanently deletes a data connection from the repository. Applications referencing this connection will no longer be able to load data from it.
      tags:
      - Data Connection
      parameters:
      - $ref: '#/components/parameters/XrfKeyParam'
      - $ref: '#/components/parameters/IdParam'
      responses:
        '204':
          description: Data connection deleted successfully
        '404':
          $ref: '#/components/responses/NotFound'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    UserCondensed:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        userDirectory:
          type: string
        userId:
          type: string
        privileges:
          type: array
          items:
            type: string
    DataConnectionCondensed:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        connectionstring:
          type: string
        type:
          type: string
        privileges:
          type: array
          items:
            type: string
    TagCondensed:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        privileges:
          type: array
          items:
            type: string
    EntityCount:
      type: object
      properties:
        value:
          type: integer
          description: Number of entities matching the filter
    DataConnection:
      type: object
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier
        createdDate:
          type: string
          format: date-time
          description: Date the connection was created
        modifiedDate:
          type: string
          format: date-time
          description: Date the connection was last modified
        modifiedByUserName:
          type: string
          description: Username of the last modifier
        name:
          type: string
          description: Data connection name
        connectionstring:
          type: string
          description: Connection string for the data source including provider-specific parameters
        type:
          type: string
          description: Connection provider type (e.g., QvOdbcConnectorPackage.exe, QvOleDbConnectorPackage.exe, folder, web)
        logOn:
          type: integer
          description: Logon mode (0=ServiceUser, 1=CurrentUser)
        architecture:
          type: integer
          description: Connection architecture (0=Undefined, 1=x86, 2=x64)
        engineObjectId:
          type: string
          format: uuid
          description: Engine object identifier for the connection
        username:
          type: string
          description: Username for connection authentication
        password:
          type: string
          description: Password for connection authentication (write-only, not returned in responses)
          writeOnly: true
        owner:
          $ref: '#/components/schemas/UserCondensed'
        tags:
          type: array
          items:
            $ref: '#/components/schemas/TagCondensed'
        customProperties:
          type: array
          items:
            $ref: '#/components/schemas/CustomPropertyValue'
        privileges:
          type: array
          items:
            type: string
        schemaPath:
          type: string
          description: Schema path for this entity type
      required:
      - name
      - connectionstring
      - type
    Error:
      type: object
      properties:
        message:
          type: string
          description: Human-readable error message
    CustomPropertyValue:
      type: object
      properties:
        id:
          type: string
          format: uuid
        definition:
          type: object
          properties:
            id:
              type: string
              format: uuid
            name:
              type: string
        value:
          type: string
    DataConnectionCreate:
      type: object
      properties:
        name:
          type: string
          description: Data connection name
        connectionstring:
          type: string
          description: Connection string for the data source
        type:
          type: string
          description: Connection provider type
        logOn:
          type: integer
          description: Logon mode
        architecture:
          type: integer
          description: Connection architecture
        username:
          type: string
          description: Username for connection authentication
        password:
          type: string
          description: Password for connection authentication
      required:
      - name
      - connectionstring
      - type
  responses:
    Unauthorized:
      description: Authentication failed or Xrfkey missing.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    BadRequest:
      description: Invalid request parameters or body.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: The requested data connection was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Conflict:
      description: Update conflict due to concurrent modification.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  parameters:
    FilterParam:
      name: filter
      in: query
      required: false
      description: 'Filter expression using syntax: property operator value (e.g., name eq ''MyConnection'')'
      schema:
        type: string
    OrderByParam:
      name: orderby
      in: query
      required: false
      description: Property name to order results by
      schema:
        type: string
    IdParam:
      name: id
      in: path
      required: true
      description: Unique identifier (GUID) of the data connection
      schema:
        type: string
        format: uuid
    PrivilegesParam:
      name: privileges
      in: query
      required: false
      description: Whether to append privilege information to returned entities
      schema:
        type: boolean
        default: false
    XrfKeyParam:
      name: Xrfkey
      in: query
      required: true
      description: Cross-site request forgery prevention key matching the X-Qlik-Xrfkey header.
      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.