arazzo: 1.0.1
info:
  title: ServiceNow Create and Approve Normal Change
  summary: Create a normal change request, read it back, then move it through approval.
  description: >-
    The change-management intake-to-approval pattern. The workflow creates a
    normal change request, retrieves it by sys_id to confirm persistence, and
    then patches its approval and state fields to advance it through the
    approval gate. The Change Management API does not expose a dedicated
    approve endpoint, so approval is modeled here as a documented PATCH that
    sets the approval and state fields on the change record. Every request is
    written inline, including the API convention of wrapping the change under a
    result object.
  version: 1.0.0
sourceDescriptions:
- name: changeApi
  url: ../openapi/servicenow-change-management-api-openapi.yml
  type: openapi
workflows:
- workflowId: create-change-then-approve
  summary: Create a normal change request and advance it through approval.
  description: >-
    Creates a normal change request from the supplied fields, reads it back,
    and patches its approval and state to move it forward.
  inputs:
    type: object
    required:
    - shortDescription
    properties:
      shortDescription:
        type: string
        description: The one-line summary of the change.
      description:
        type: string
        description: The full description of the change.
      priority:
        type: string
        description: The change priority (e.g. "2").
      risk:
        type: string
        description: The risk level of the change.
      assignmentGroup:
        type: string
        description: The assignment group responsible for the change.
      implementationPlan:
        type: string
        description: The implementation plan text.
      backoutPlan:
        type: string
        description: The backout plan text.
      approval:
        type: string
        description: The approval value to set (e.g. "approved").
      state:
        type: string
        description: The state to advance the change to after approval.
  steps:
  - stepId: createChange
    description: >-
      Create a new normal change request with the supplied planning fields.
    operationId: createNormalChange
    requestBody:
      contentType: application/json
      payload:
        short_description: $inputs.shortDescription
        description: $inputs.description
        priority: $inputs.priority
        risk: $inputs.risk
        assignment_group: $inputs.assignmentGroup
        implementation_plan: $inputs.implementationPlan
        backout_plan: $inputs.backoutPlan
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      changeSysId: $response.body#/result/sys_id
      number: $response.body#/result/number
  - stepId: getChange
    description: >-
      Read the newly created change request back by its sys_id to confirm it
      persisted before submitting it for approval.
    operationId: getNormalChange
    parameters:
    - name: sys_id
      in: path
      value: $steps.createChange.outputs.changeSysId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      currentApproval: $response.body#/result/approval
  - stepId: approveChange
    description: >-
      Patch the change request to set its approval and advance its state.
      ServiceNow has no dedicated approve endpoint, so approval is applied by
      updating the approval and state fields directly.
    operationId: updateNormalChange
    parameters:
    - name: sys_id
      in: path
      value: $steps.createChange.outputs.changeSysId
    requestBody:
      contentType: application/json
      payload:
        approval: $inputs.approval
        state: $inputs.state
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      changeSysId: $response.body#/result/sys_id
      approval: $response.body#/result/approval
      state: $response.body#/result/state
  outputs:
    changeSysId: $steps.approveChange.outputs.changeSysId
    number: $steps.createChange.outputs.number
    approval: $steps.approveChange.outputs.approval