Twilio Verify Start and Check a Verification

arazzo: 1.0.1
info:
  title: Twilio Verify Start and Check a Verification
  summary: Start a Verify verification over a channel, then check a user-supplied code against it.
  description: >-
    The core Twilio Verify two-factor flow. The workflow starts a verification
    on an existing Verify service, sending a one-time code to the recipient over
    the chosen channel (SMS, voice, email, or WhatsApp). It then submits the
    code the user entered to the verification check endpoint and branches on
    whether the check was approved or remains pending or denied. 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: verifyApi
  url: ../openapi/twilio-verify-openapi.yml
  type: openapi
workflows:
- workflowId: start-and-check-verification
  summary: Send a verification code and validate the code the user enters.
  description: >-
    Creates a verification on a Verify service and then checks a supplied code
    against it, branching to approved or not-approved terminal states.
  inputs:
    type: object
    required:
    - serviceSid
    - to
    - channel
    - code
    properties:
      serviceSid:
        type: string
        description: The Verify service SID (starts with VA).
      to:
        type: string
        description: Phone number (E.164) or email address to verify.
      channel:
        type: string
        description: Delivery channel - one of sms, call, email, whatsapp, or sna.
      code:
        type: string
        description: The verification code the user entered to check.
  steps:
  - stepId: startVerification
    description: >-
      Start a verification on the service, delivering a one-time code to the
      recipient over the chosen channel.
    operationId: createVerification
    parameters:
    - name: ServiceSid
      in: path
      value: $inputs.serviceSid
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        To: $inputs.to
        Channel: $inputs.channel
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      verificationSid: $response.body#/sid
      status: $response.body#/status
  - stepId: checkVerification
    description: >-
      Submit the user-entered code to the verification check endpoint and read
      whether it was approved.
    operationId: createVerificationCheck
    parameters:
    - name: ServiceSid
      in: path
      value: $inputs.serviceSid
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        To: $inputs.to
        Code: $inputs.code
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
      valid: $response.body#/valid
    onSuccess:
    - name: approved
      type: end
      criteria:
      - context: $response.body
        condition: $.status == "approved"
        type: jsonpath
    - name: notApproved
      type: end
      criteria:
      - context: $response.body
        condition: $.status != "approved"
        type: jsonpath
  outputs:
    verificationSid: $steps.startVerification.outputs.verificationSid
    checkStatus: $steps.checkVerification.outputs.status