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Promote file version


Promote a specific version of a file.

If previous versions exist, this method can be used to promote one of the older versions to the top of the version history.

This creates a new copy of the old version and puts it at the top of the versions history. The file will have the exact same contents as the older version, with the the same hash digest, etag, and name as the original.

Other properties such as comments do not get updated to their former values.

Don't use this endpoint to restore Box Notes, as it works with file formats such as PDF, DOC, PPTX or similar.



Path Parameters

stringin pathrequired

The unique identifier that represents a file.

The ID for any file can be determined by visiting a file in the web application and copying the ID from the URL. For example, for the URL https://* the file_id is 123.

Query Parameters

string arrayin queryoptional

A comma-separated list of attributes to include in the response. This can be used to request fields that are not normally returned in a standard response.

Be aware that specifying this parameter will have the effect that none of the standard fields are returned in the response unless explicitly specified, instead only fields for the mini representation are returned, additional to the fields requested.

Request Body

stringin bodyoptional

The file version ID

stringin bodyoptional

The type to promote

Value is always file_version


application/jsonFile version (Full)

Returns a newly created file version object.

application/jsonClient error

An unexpected client error.

Promote file version
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Request Example

curl -i -X POST "" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "type": "file_version",
       "id": "456456"
string fileId = "11111";
BoxFileVersion current = await client.FilesManager.PromoteVersionAsync(fileId, versionId: "22222");
BoxFile file = new BoxFile(api, "id");
Collection<BoxFileVersion> versions = file.getVersions();
BoxFileVersion firstVersion = versions.iterator().next();
file_id = '11111'
file_version_id = '12345'

version_to_promote = client.file_version(file_version_id)

new_version = client.file(file_id).promote_version(version_to_promote)
print(f'Version {file_version_id} promoted; new version {} created')
var fileID = '11111';
var versionID = '22222';
client.files.promoteVersion(fileID, versionID)
	.then(version => {
		/* version -> {
			type: 'file_version',
			id: '33333',
			sha1: '12039d6dd9a7e6eefc78846802e',
			name: 'Stark Family Lineage.pptx',
			size: 37934912,
			created_at: '2013-11-20T13:20:50-08:00',
			modified_at: '2013-11-20T13:26:48-08:00',
			{ type: 'user',
				id: '44444',
				name: 'Eddard Stark',
				login: '' } }

Response Example

  "id": "12345",
  "type": "file_version",
  "created_at": "2012-12-12T10:53:43-08:00",
  "modified_at": "2012-12-12T10:53:43-08:00",
  "modified_by": {
    "id": "11446498",
    "type": "user",
    "login": "",
    "name": "Aaron Levie"
  "name": "tigers.jpeg",
  "purged_at": "2012-12-12T10:53:43-08:00",
  "restored_at": "2012-12-12T10:53:43-08:00",
  "restored_by": {
    "id": "11446498",
    "type": "user",
    "login": "",
    "name": "Aaron Levie"
  "sha1": "134b65991ed521fcfe4724b7d814ab8ded5185dc",
  "size": 629644,
  "trashed_at": "2012-12-12T10:53:43-08:00",
  "trashed_by": {
    "id": "11446498",
    "type": "user",
    "login": "",
    "name": "Aaron Levie"
  "uploader_display_name": "Ellis Wiggins",
  "version_number": "1"