Red Hat Keycloak Upsert a Realm User

arazzo: 1.0.1
info:
  title: Red Hat Keycloak Upsert a Realm User
  summary: Look up a user by username and update it if it exists, otherwise create it.
  description: >-
    A common identity provisioning pattern for the Red Hat build of Keycloak
    (RH-SSO) admin API. The workflow searches a realm for a user with a given
    username, then branches: when a match is found it updates the existing user,
    and when no match is found it creates a new user and re-reads the realm to
    resolve the new user's id. Each step inlines its bearer token, parameters,
    request body, documented success criteria, and outputs.
  version: 1.0.0
sourceDescriptions:
- name: keycloakAdminApi
  url: ../openapi/red-hat-keycloak-admin-openapi.yml
  type: openapi
workflows:
- workflowId: upsert-user
  summary: Upsert a Keycloak realm user keyed on username.
  description: >-
    Searches a realm for a user by username and either updates the matched user
    or creates a new one, resolving the created user's id by re-listing.
  inputs:
    type: object
    required:
    - token
    - realm
    - username
    - email
    properties:
      token:
        type: string
        description: Admin bearer token for the Keycloak admin API.
      realm:
        type: string
        description: The realm the user belongs to.
      username:
        type: string
        description: The username used to detect an existing user.
      email:
        type: string
        description: The email address to set on the user.
      firstName:
        type: string
        description: The user's first name.
      lastName:
        type: string
        description: The user's last name.
      enabled:
        type: boolean
        description: Whether the user account is enabled.
  steps:
  - stepId: findUser
    description: >-
      Search the realm for an exact username match, returning at most one user.
    operationId: listUsers
    parameters:
    - name: realm
      in: path
      value: $inputs.realm
    - name: username
      in: query
      value: $inputs.username
    - name: max
      in: query
      value: 1
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      matchedUserId: $response.body#/0/id
    onSuccess:
    - name: userExists
      type: goto
      stepId: updateExisting
      criteria:
      - context: $response.body
        condition: $.length > 0
        type: jsonpath
    - name: userMissing
      type: goto
      stepId: createUser
      criteria:
      - context: $response.body
        condition: $.length == 0
        type: jsonpath
  - stepId: updateExisting
    description: >-
      Update the matched user's profile attributes in place.
    operationId: updateUser
    parameters:
    - name: realm
      in: path
      value: $inputs.realm
    - name: user_id
      in: path
      value: $steps.findUser.outputs.matchedUserId
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    requestBody:
      contentType: application/json
      payload:
        username: $inputs.username
        email: $inputs.email
        firstName: $inputs.firstName
        lastName: $inputs.lastName
        enabled: $inputs.enabled
    successCriteria:
    - condition: $statusCode == 204
    outputs:
      userId: $steps.findUser.outputs.matchedUserId
    onSuccess:
    - name: done
      type: end
  - stepId: createUser
    description: >-
      Create a new user in the realm with the supplied profile attributes when
      no existing user matched the username.
    operationId: createUser
    parameters:
    - name: realm
      in: path
      value: $inputs.realm
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    requestBody:
      contentType: application/json
      payload:
        username: $inputs.username
        email: $inputs.email
        firstName: $inputs.firstName
        lastName: $inputs.lastName
        enabled: $inputs.enabled
    successCriteria:
    - condition: $statusCode == 201
  - stepId: resolveCreatedUser
    description: >-
      Re-read the realm by username to resolve the id of the user that was just
      created, since the create call returns no body.
    operationId: listUsers
    parameters:
    - name: realm
      in: path
      value: $inputs.realm
    - name: username
      in: query
      value: $inputs.username
    - name: max
      in: query
      value: 1
    - name: Authorization
      in: header
      value: Bearer $inputs.token
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      userId: $response.body#/0/id
  outputs:
    updatedUserId: $steps.updateExisting.outputs.userId
    createdUserId: $steps.resolveCreatedUser.outputs.userId