Google Drive Upsert a File by Name

arazzo: 1.0.1
info:
  title: Google Drive Upsert a File by Name
  summary: Find a file by name within a folder and update it if it exists, otherwise create it.
  description: >-
    The most common Google Drive integration pattern for systems that sync
    records out to Drive. Drive allows many files to share the same name in the
    same folder, so a naive create produces duplicates on every run. This
    workflow searches the destination folder for a file matching the supplied
    name, and then branches: when a match is found it patches the existing file
    metadata, and when no match is found it creates a new file. 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: filesApi
  url: ../openapi/google-drive-files-api-openapi.yml
  type: openapi
workflows:
- workflowId: upsert-file-by-name
  summary: Upsert a single file into a Google Drive folder by its name.
  description: >-
    Looks for an existing non-trashed file with the given name inside the target
    folder, and either updates the matched file or creates a new one, returning
    the resulting file id either way.
  inputs:
    type: object
    required:
    - folderId
    - fileName
    - mimeType
    properties:
      folderId:
        type: string
        description: The ID of the folder to upsert the file into.
      fileName:
        type: string
        description: The name of the file to match on and write (e.g. "Q3 Report").
      mimeType:
        type: string
        description: >-
          The MIME type of the file (e.g. application/vnd.google-apps.document).
  steps:
  - stepId: findFile
    description: >-
      Search the target folder for a non-trashed file whose name matches the
      supplied file name, returning at most one match.
    operationId: listFiles
    parameters:
    - name: q
      in: query
      value: "name = '$inputs.fileName' and '$inputs.folderId' in parents and trashed = false"
    - name: pageSize
      in: query
      value: 1
    - name: fields
      in: query
      value: files(id,name,mimeType,modifiedTime)
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      matchedFileId: $response.body#/files/0/id
    onSuccess:
    - name: fileExists
      type: goto
      stepId: updateExisting
      criteria:
      - context: $response.body
        condition: $.files.length > 0
        type: jsonpath
    - name: fileMissing
      type: goto
      stepId: createNew
      criteria:
      - context: $response.body
        condition: $.files.length == 0
        type: jsonpath
  - stepId: updateExisting
    description: >-
      Patch the matched file's metadata with the supplied name and MIME type.
      Only the fields provided are changed; the file's content, parents, and
      sharing are left intact.
    operationId: updateFile
    parameters:
    - name: fileId
      in: path
      value: $steps.findFile.outputs.matchedFileId
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.fileName
        mimeType: $inputs.mimeType
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      fileId: $response.body#/id
      modifiedTime: $response.body#/modifiedTime
      webViewLink: $response.body#/webViewLink
    onSuccess:
    - name: done
      type: end
  - stepId: createNew
    description: >-
      Create a new file in the target folder when no existing file matched the
      supplied name.
    operationId: createFile
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.fileName
        mimeType: $inputs.mimeType
        parents:
        - $inputs.folderId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      fileId: $response.body#/id
      createdTime: $response.body#/createdTime
      webViewLink: $response.body#/webViewLink
  outputs:
    updatedFileId: $steps.updateExisting.outputs.fileId
    createdFileId: $steps.createNew.outputs.fileId