Knock Identify User, Set Preferences, and Trigger Workflow

arazzo: 1.0.1
info:
  title: Knock Identify User, Set Preferences, and Trigger Workflow
  summary: Identify a recipient, apply their notification preferences, then trigger a workflow for them.
  description: >-
    The canonical Knock send pattern. The workflow first upserts the recipient
    with identifyUser so Knock has an up-to-date user record, then writes a
    complete preference set for that user so channel and workflow opt-ins are
    respected, and finally triggers a notification workflow scoped to the
    identified recipient. Every step spells out its request inline so the flow
    can be read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: preferencesApi
  url: ../openapi/knock-app-preferences-api-openapi.yml
  type: openapi
- name: usersApi
  url: ../openapi/knock-app-users-api-openapi.yml
  type: openapi
- name: workflowsApi
  url: ../openapi/knock-app-workflows-api-openapi.yml
  type: openapi
workflows:
- workflowId: identify-user-set-preferences-trigger-workflow
  summary: Identify a user, set their preference set, and trigger a workflow.
  description: >-
    Upserts the user, replaces their preference set with the supplied
    preferences, and triggers the named workflow for that single recipient.
  inputs:
    type: object
    required:
    - apiKey
    - userId
    - workflowKey
    properties:
      apiKey:
        type: string
        description: Knock secret API key (sk_...) used as a Bearer token.
      userId:
        type: string
        description: The unique identifier of the user to identify and notify.
      email:
        type: string
        description: The primary email address to set on the user.
      name:
        type: string
        description: The display name to set on the user.
      preferenceSetId:
        type: string
        description: The preference set identifier to update (defaults to "default").
      channelTypes:
        type: object
        description: A map of channel type names to boolean opt-in values.
      workflowPreferences:
        type: object
        description: A map of workflow keys to per-workflow preference settings.
      workflowKey:
        type: string
        description: The key of the workflow to trigger.
      data:
        type: object
        description: Optional data payload passed into the workflow run.
  steps:
  - stepId: identifyUser
    description: >-
      Create or update the user record with the supplied identification
      properties so the recipient exists before preferences are written.
    operationId: identifyUser
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: user_id
      in: path
      value: $inputs.userId
    requestBody:
      contentType: application/json
      payload:
        email: $inputs.email
        name: $inputs.name
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      identifiedUserId: $response.body#/id
  - stepId: setPreferences
    description: >-
      Write the complete preference set for the identified user, replacing any
      existing preferences with the supplied channel types and workflow opt-ins.
    operationId: updateUserPreferenceSet
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: user_id
      in: path
      value: $steps.identifyUser.outputs.identifiedUserId
    - name: id
      in: path
      value: $inputs.preferenceSetId
    requestBody:
      contentType: application/json
      payload:
        channel_types: $inputs.channelTypes
        workflows: $inputs.workflowPreferences
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      preferenceSetId: $response.body#/id
  - stepId: triggerWorkflow
    description: >-
      Trigger the named workflow for the identified recipient. Returns a
      workflow_run_id that can be used to track the resulting messages.
    operationPath: '{$sourceDescriptions.workflowsApi.url}#/paths/~1v1~1workflows~1{key}~1trigger/post'
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: key
      in: path
      value: $inputs.workflowKey
    requestBody:
      contentType: application/json
      payload:
        recipients:
        - $steps.identifyUser.outputs.identifiedUserId
        data: $inputs.data
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      workflowRunId: $response.body#/workflow_run_id
  outputs:
    userId: $steps.identifyUser.outputs.identifiedUserId
    preferenceSetId: $steps.setPreferences.outputs.preferenceSetId
    workflowRunId: $steps.triggerWorkflow.outputs.workflowRunId