openapi: 3.1.0
info:
  title: Jupyter Notebook Jupyter Kernel Gateway Authorization Groups API
  description: 'REST API for the Jupyter Kernel Gateway, a web server that provides headless access to Jupyter kernels. The Kernel Gateway supports two modes: jupyter-websocket mode (default) which provides a Jupyter Notebook server-compatible API for kernel management, and notebook-http mode which maps notebook cells to HTTP endpoints. This spec covers the jupyter-websocket mode API.'
  version: 3.0.0
  license:
    name: BSD-3-Clause
    url: https://opensource.org/licenses/BSD-3-Clause
  contact:
    name: Jupyter Project
    url: https://jupyter-kernel-gateway.readthedocs.io
    email: jupyter@googlegroups.com
servers:
- url: http://localhost:8888/api
  description: Local Jupyter Kernel Gateway server
security:
- token: []
- tokenQuery: []
tags:
- name: Groups
  description: Group management for organizing users.
paths:
  /groups:
    get:
      operationId: listGroups
      summary: Jupyter Notebook List groups
      description: List all groups.
      tags:
      - Groups
      parameters:
      - name: offset
        in: query
        required: false
        description: Offset for pagination.
        schema:
          type: integer
          default: 0
      - name: limit
        in: query
        required: false
        description: Maximum number of groups to return.
        schema:
          type: integer
          default: 100
      responses:
        '200':
          description: List of groups.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Group'
        '403':
          description: Forbidden.
  /groups/{name}:
    get:
      operationId: getGroup
      summary: Jupyter Notebook Get group details
      description: Get information about a specific group.
      tags:
      - Groups
      parameters:
      - name: name
        in: path
        required: true
        description: Group name.
        schema:
          type: string
      responses:
        '200':
          description: Group details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Group'
        '404':
          description: Group not found.
    post:
      operationId: createGroup
      summary: Jupyter Notebook Create a group
      description: Create a new group with the given name.
      tags:
      - Groups
      parameters:
      - name: name
        in: path
        required: true
        description: Group name.
        schema:
          type: string
      responses:
        '201':
          description: Group created successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Group'
        '409':
          description: Group already exists.
    delete:
      operationId: deleteGroup
      summary: Jupyter Notebook Delete a group
      description: Delete a group. Users in the group are not deleted.
      tags:
      - Groups
      parameters:
      - name: name
        in: path
        required: true
        description: Group name.
        schema:
          type: string
      responses:
        '204':
          description: Group deleted successfully.
        '404':
          description: Group not found.
  /groups/{name}/users:
    post:
      operationId: addGroupUsers
      summary: Jupyter Notebook Add users to a group
      description: Add one or more users to a group.
      tags:
      - Groups
      parameters:
      - name: name
        in: path
        required: true
        description: Group name.
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                users:
                  type: array
                  description: List of usernames to add.
                  items:
                    type: string
              required:
              - users
      responses:
        '200':
          description: Users added to group.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Group'
        '404':
          description: Group not found.
    delete:
      operationId: removeGroupUsers
      summary: Jupyter Notebook Remove users from a group
      description: Remove one or more users from a group.
      tags:
      - Groups
      parameters:
      - name: name
        in: path
        required: true
        description: Group name.
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                users:
                  type: array
                  description: List of usernames to remove.
                  items:
                    type: string
              required:
              - users
      responses:
        '200':
          description: Users removed from group.
        '404':
          description: Group not found.
  /groups/{name}/properties:
    put:
      operationId: setGroupProperties
      summary: Jupyter Notebook Set group properties
      description: Set or replace all custom properties for a group.
      tags:
      - Groups
      parameters:
      - name: name
        in: path
        required: true
        description: Group name.
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: Properties set successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Group'
components:
  schemas:
    Group:
      type: object
      description: A JupyterHub user group.
      properties:
        name:
          type: string
          description: The group name.
        users:
          type: array
          description: List of usernames in the group.
          items:
            type: string
        roles:
          type: array
          description: Roles assigned to the group.
          items:
            type: string
        properties:
          type: object
          description: Custom properties for the group.
          additionalProperties: true
      required:
      - name
      - users
  securitySchemes:
    token:
      type: apiKey
      in: header
      name: Authorization
      description: Authentication token configured via KG_AUTH_TOKEN. Passed as 'token <token_value>' in the Authorization header.
    tokenQuery:
      type: apiKey
      in: query
      name: token
      description: Authentication token passed as a query parameter.