openapi: 3.2.0
info:
  title: FIAM-KPN Authentication API
  description: A collection of crates for federated identity and access management
  license:
    name: ''
  version: 0.1.1
servers:
- url: https://api-prd.kpn.com/fiam
  description: Server
tags:
- name: Authentication
  description: Authentication endpoints for token management
paths:
  /api/v1/oauth/token:
    post:
      tags:
      - Authentication
      operationId: access_token
      requestBody:
        content:
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/AccessTokenParams'
        required: true
      responses:
        '200':
          description: Access token successfully created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccessToken'
        '400':
          description: Invalid token request parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
        '401':
          description: Unauthorized client
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
components:
  schemas:
    ProblemDetail:
      type: object
      required:
      - type
      - status
      properties:
        detail:
          type:
          - string
          - 'null'
        instance:
          type:
          - string
          - 'null'
        status:
          type: integer
          format: int32
          minimum: 0
        title:
          type:
          - string
          - 'null'
        type:
          type: string
      additionalProperties: {}
    AccessTokenParams:
      type: object
      description: struct for passing parameters to the method [`access_token`]
      required:
      - grant_type
      - scope
      - client_id
      - client_assertion_type
      - client_assertion
      properties:
        client_assertion:
          type: string
          description: Used for all client identification for OAuth/OpenID Connect. MUST contain JWT, signed by the client certificate.
        client_assertion_type:
          type: string
          description: 'Used for all client identification for OAuth/OpenID Connect.

            MUST contain “urn:ietf:params:oauth:client-assertion-type:jwt-bearer”'
        client_id:
          type: string
          description: 'Used for all client identification  OAuth/OpenID Connect.

            MUST contain a valid party identifier of the Service Consumer'
        grant_type:
          type: string
          description: OAuth 2.0 grant type. MUST contain “client_credentials”
        scope:
          type: string
          description: 'OAuth 2.0 scope. MUST contain DSH_FIAM scope value. Other values allow the Service Consumer to get tokens that do

            not include all rights the Service Consumer has. According to RFC 6749, scopes are case-sensitive.'
    AccessToken:
      type: object
      properties:
        access_token:
          type:
          - string
          - 'null'
        expires_in:
          type:
          - integer
          - 'null'
          format: int64
        token_type:
          type:
          - string
          - 'null'
  securitySchemes:
    bearer_auth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: JWT Bearer token obtained from /oauth/token endpoint