arazzo: 1.0.1
info:
  title: Meta Verify And Update User
  summary: Read a user, branch on whether it exists, and apply an update when found.
  description: >-
    Reads the User node for a supplied id and branches on the outcome: when the
    read succeeds the workflow applies the supplied update and re-reads the node
    to confirm, and when the user is not found it ends without writing. This
    guards the write behind an existence check so updates are never attempted
    against a missing user. Every step inlines its request so the flow can be
    read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: metaGraphApi
  url: ../openapi/meta-openapi.yml
  type: openapi
workflows:
- workflowId: verify-and-update-user
  summary: Confirm a user exists before updating, then verify the update.
  description: >-
    Reads the user node, and on a successful read applies the update and
    re-reads to confirm; a not-found read ends the flow.
  inputs:
    type: object
    required:
    - accessToken
    - userId
    - updates
    properties:
      accessToken:
        type: string
        description: A Meta Graph API user access token.
      userId:
        type: string
        description: The id of the user to verify and update.
      updates:
        type: object
        description: Map of writable User fields to apply when the user exists.
      fields:
        type: string
        description: Comma-separated fields to read back after the update.
  steps:
  - stepId: verifyUser
    description: >-
      Read the User node to confirm it exists before attempting a write. A 200
      proceeds to the update; a 404 ends the flow.
    operationId: getUser
    parameters:
    - name: user-id
      in: path
      value: $inputs.userId
    - name: access_token
      in: query
      value: $inputs.accessToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      userId: $response.body#/id
    onSuccess:
    - name: userFound
      type: goto
      stepId: applyUpdate
      criteria:
      - condition: $statusCode == 200
  - stepId: applyUpdate
    description: >-
      Apply the supplied update to the confirmed User node.
    operationId: updateUser
    parameters:
    - name: user-id
      in: path
      value: $steps.verifyUser.outputs.userId
    - name: access_token
      in: query
      value: $inputs.accessToken
    requestBody:
      contentType: application/json
      payload: $inputs.updates
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      success: $response.body#/success
  - stepId: confirmUpdate
    description: >-
      Re-read the User node to confirm the updated values persisted.
    operationId: getUser
    parameters:
    - name: user-id
      in: path
      value: $steps.verifyUser.outputs.userId
    - name: fields
      in: query
      value: $inputs.fields
    - name: access_token
      in: query
      value: $inputs.accessToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      name: $response.body#/name
  outputs:
    userId: $steps.verifyUser.outputs.userId
    updateSucceeded: $steps.applyUpdate.outputs.success
    name: $steps.confirmUpdate.outputs.name