arazzo: 1.0.1
info:
  title: ServiceNow Standard Change From Template
  summary: List standard change models, create a change from a template, then read it back.
  description: >-
    The pre-approved standard-change path. The workflow lists existing standard
    change records to give context on available models, creates a new standard
    change from a supplied template sys_id (which carries the template's default
    values and pre-configured approvals), and reads the resulting change back by
    its sys_id. Each request is written inline, including the API convention of
    wrapping the change under a result object and lists under a result array.
  version: 1.0.0
sourceDescriptions:
- name: changeApi
  url: ../openapi/servicenow-change-management-api-openapi.yml
  type: openapi
workflows:
- workflowId: standard-change-from-template
  summary: Create a standard change from a pre-approved template.
  description: >-
    Surveys existing standard changes, creates a new one from a template, and
    confirms it by reading it back.
  inputs:
    type: object
    required:
    - templateId
    properties:
      templateId:
        type: string
        description: The sys_id of the standard change template to instantiate.
      shortDescription:
        type: string
        description: An optional short description override for the new change.
      assignmentGroup:
        type: string
        description: An optional assignment group override.
      startDate:
        type: string
        description: An optional planned start date/time override.
      endDate:
        type: string
        description: An optional planned end date/time override.
  steps:
  - stepId: listStandardChanges
    description: >-
      List existing standard change requests to provide context before creating
      a new one from a template.
    operationId: listStandardChanges
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      firstChangeSysId: $response.body#/result/0/sys_id
  - stepId: createFromTemplate
    description: >-
      Create a new standard change request from the supplied template. The
      template determines default values and pre-configured approvals; the
      supplied body fields override template defaults.
    operationId: createStandardChange
    parameters:
    - name: standard_change_template_id
      in: path
      value: $inputs.templateId
    requestBody:
      contentType: application/json
      payload:
        short_description: $inputs.shortDescription
        assignment_group: $inputs.assignmentGroup
        start_date: $inputs.startDate
        end_date: $inputs.endDate
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      changeSysId: $response.body#/result/sys_id
      number: $response.body#/result/number
  - stepId: getChange
    description: >-
      Read the newly created standard change back by its sys_id to confirm it
      was created from the template.
    operationId: getNormalChange
    parameters:
    - name: sys_id
      in: path
      value: $steps.createFromTemplate.outputs.changeSysId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      state: $response.body#/result/state
      approval: $response.body#/result/approval
  outputs:
    changeSysId: $steps.createFromTemplate.outputs.changeSysId
    number: $steps.createFromTemplate.outputs.number
    approval: $steps.getChange.outputs.approval