Microsoft Excel Flatten a Table into a Plain Range

arazzo: 1.0.1
info:
  title: Microsoft Excel Flatten a Table into a Plain Range
  summary: Snapshot a table's rows and columns, convert it to a static range, and read the flattened cells.
  description: >-
    Converting a table to a range is a one-way door: the structured object, its
    header semantics, its sort and its filter all disappear, and only the cell
    values are left behind. That makes it the right final step when freezing a
    working table into an archival tab, and the wrong thing to run casually.
    This flow therefore snapshots both the rows and the columns before it
    converts, so the caller retains the schema the conversion destroys, and
    reads the resulting range afterwards. Every step spells out its request
    inline so the flow can be read and executed without opening the underlying
    OpenAPI.
  version: 1.0.0
sourceDescriptions:
- name: excelGraphApi
  url: ../openapi/microsoft-excel-graph-api.yaml
  type: openapi
workflows:
- workflowId: convert-table-to-range
  summary: Archive a table by snapshotting it and flattening it into static cells.
  description: >-
    Captures a table's columns and rows, converts the table into a plain range,
    and reads the resulting cells back at the address the conversion returned.
  inputs:
    type: object
    required:
    - itemId
    - worksheetIdOrName
    properties:
      itemId:
        type: string
        description: The drive item id of the workbook file.
      worksheetIdOrName:
        type: string
        description: The worksheet holding the table to flatten.
  steps:
  - stepId: openSession
    description: Open a persisting session so the conversion is committed to the stored workbook.
    operationId: createWorkbookSession
    parameters:
    - name: item-id
      in: path
      value: $inputs.itemId
    requestBody:
      contentType: application/json
      payload:
        persistChanges: true
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      sessionId: $response.body#/id
  - stepId: resolveTable
    description: Resolve the table on the worksheet that is about to be flattened.
    operationId: listTables
    parameters:
    - name: item-id
      in: path
      value: $inputs.itemId
    - name: worksheet-id-or-name
      in: path
      value: $inputs.worksheetIdOrName
    - name: workbook-session-id
      in: header
      value: $steps.openSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.value.length > 0
      type: jsonpath
    outputs:
      tableId: $response.body#/value/0/id
      tableName: $response.body#/value/0/name
  - stepId: snapshotColumns
    description: >-
      Capture the column schema before conversion. Once the table becomes a
      range these column names and ids no longer exist anywhere in the API.
    operationId: listTableColumns
    parameters:
    - name: item-id
      in: path
      value: $inputs.itemId
    - name: table-id
      in: path
      value: $steps.resolveTable.outputs.tableId
    - name: workbook-session-id
      in: header
      value: $steps.openSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      archivedColumns: $response.body#/value
  - stepId: snapshotRows
    description: >-
      Capture every row before conversion so the caller holds a complete record
      of the table as a structured object.
    operationId: listTableRows
    parameters:
    - name: item-id
      in: path
      value: $inputs.itemId
    - name: table-id
      in: path
      value: $steps.resolveTable.outputs.tableId
    - name: workbook-session-id
      in: header
      value: $steps.openSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      archivedRows: $response.body#/value
  - stepId: flattenTable
    description: >-
      Convert the table into a plain range. This is irreversible through the
      API: the table object, its filters, and its sort are all discarded, and
      Excel returns the range the cells now occupy.
    operationId: convertTableToRange
    parameters:
    - name: item-id
      in: path
      value: $inputs.itemId
    - name: table-id
      in: path
      value: $steps.resolveTable.outputs.tableId
    - name: workbook-session-id
      in: header
      value: $steps.openSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      rangeAddress: $response.body#/address
      rangeValues: $response.body#/values
      cellCount: $response.body#/cellCount
  - stepId: verifyFlattenedRange
    description: >-
      Read the flattened cells back at the address the conversion reported to
      confirm the values survived the conversion intact.
    operationId: getRange
    parameters:
    - name: item-id
      in: path
      value: $inputs.itemId
    - name: worksheet-id-or-name
      in: path
      value: $inputs.worksheetIdOrName
    - name: address
      in: path
      value: $steps.flattenTable.outputs.rangeAddress
    - name: workbook-session-id
      in: header
      value: $steps.openSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      flattenedValues: $response.body#/values
  outputs:
    archivedColumns: $steps.snapshotColumns.outputs.archivedColumns
    archivedRows: $steps.snapshotRows.outputs.archivedRows
    rangeAddress: $steps.flattenTable.outputs.rangeAddress
    flattenedValues: $steps.verifyFlattenedRange.outputs.flattenedValues