Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Examples See Also

ListObjectVersions

Returns metadata about all versions of the objects in a bucket. You can also use request parameters as selection criteria to return metadata about a subset of all the object versions.

Important

To use this operation, you must have permissions to perform the s3:ListBucketVersions action. Be aware of the name difference.

Note

A 200 OK response can contain valid or invalid XML. Make sure to design your application to parse the contents of the response and handle it appropriately.

To use this operation, you must have READ access to the bucket.

This action is not supported by Amazon S3 on Outposts.

The following operations are related to ListObjectVersions:

Request Syntax


GET /?versions&delimiter=Delimiter&encoding-type=EncodingType&key-marker=KeyMarker&max-keys=MaxKeys&prefix=Prefix&version-id-marker=VersionIdMarker HTTP/1.1
Host: Bucket.s3.amazonaws.com
x-amz-expected-bucket-owner: ExpectedBucketOwner

URI Request Parameters

The request uses the following URI parameters.

Bucket

The bucket name that contains the objects.

Required: Yes

delimiter

A delimiter is a character that you specify to group keys. All keys that contain the same string between the prefix and the first occurrence of the delimiter are grouped under a single result element in CommonPrefixes. These groups are counted as one result against the max-keys limitation. These keys are not returned elsewhere in the response.

encoding-type

Requests Amazon S3 to encode the object keys in the response and specifies the encoding method to use. An object key may contain any Unicode character; however, XML 1.0 parser cannot parse some characters, such as characters with an ASCII value from 0 to 10. For characters that are not supported in XML 1.0, you can add this parameter to request that Amazon S3 encode the keys in the response.

Valid Values: url

key-marker

Specifies the key to start with when listing objects in a bucket.

max-keys

Sets the maximum number of keys returned in the response. By default the action returns up to 1,000 key names. The response might contain fewer keys but will never contain more. If additional keys satisfy the search criteria, but were not returned because max-keys was exceeded, the response contains <isTruncated>true</isTruncated>. To return the additional keys, see key-marker and version-id-marker.

prefix

Use this parameter to select only those keys that begin with the specified prefix. You can use prefixes to separate a bucket into different groupings of keys. (You can think of using prefix to make groups in the same way you'd use a folder in a file system.) You can use prefix with delimiter to roll up numerous objects into a single result under CommonPrefixes.

version-id-marker

Specifies the object version you want to start listing from.

x-amz-expected-bucket-owner

The account ID of the expected bucket owner. If the bucket is owned by a different account, the request fails with the HTTP status code 403 Forbidden (access denied).

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
<?xml version="1.0" encoding="UTF-8"?>
<ListVersionsResult>
   <IsTruncated>boolean</IsTruncated>
   <KeyMarker>string</KeyMarker>
   <VersionIdMarker>string</VersionIdMarker>
   <NextKeyMarker>string</NextKeyMarker>
   <NextVersionIdMarker>string</NextVersionIdMarker>
   <Version>
      <ChecksumAlgorithm>string</ChecksumAlgorithm>
      ...
      <ETag>string</ETag>
      <IsLatest>boolean</IsLatest>
      <Key>string</Key>
      <LastModified>timestamp</LastModified>
      <Owner>
         <DisplayName>string</DisplayName>
         <ID>string</ID>
      </Owner>
      <Size>integer</Size>
      <StorageClass>string</StorageClass>
      <VersionId>string</VersionId>
   </Version>
   ...
   <DeleteMarker>
      <IsLatest>boolean</IsLatest>
      <Key>string</Key>
      <LastModified>timestamp</LastModified>
      <Owner>
         <DisplayName>string</DisplayName>
         <ID>string</ID>
      </Owner>
      <VersionId>string</VersionId>
   </DeleteMarker>
   ...
   <Name>string</Name>
   <Prefix>string</Prefix>
   <Delimiter>string</Delimiter>
   <MaxKeys>integer</MaxKeys>
   <CommonPrefixes>
      <Prefix>string</Prefix>
   </CommonPrefixes>
   ...
   <EncodingType>string</EncodingType>
</ListVersionsResult>

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in XML format by the service.

ListVersionsResult

Root level tag for the ListVersionsResult parameters.

Required: Yes

CommonPrefixes

All of the keys rolled up into a common prefix count as a single return when calculating the number of returns.

Type: Array of CommonPrefix data types

DeleteMarker

Container for an object that is a delete marker.

Type: Array of DeleteMarkerEntry data types

Delimiter

The delimiter grouping the included keys. A delimiter is a character that you specify to group keys. All keys that contain the same string between the prefix and the first occurrence of the delimiter are grouped under a single result element in CommonPrefixes. These groups are counted as one result against the max-keys limitation. These keys are not returned elsewhere in the response.

Type: String

EncodingType

Encoding type used by Amazon S3 to encode object key names in the XML response.

If you specify encoding-type request parameter, Amazon S3 includes this element in the response, and returns encoded key name values in the following response elements:

KeyMarker, NextKeyMarker, Prefix, Key, and Delimiter.

Type: String

Valid Values: url

IsTruncated

A flag that indicates whether Amazon S3 returned all of the results that satisfied the search criteria. If your results were truncated, you can make a follow-up paginated request using the NextKeyMarker and NextVersionIdMarker response parameters as a starting place in another request to return the rest of the results.

Type: Boolean

KeyMarker

Marks the last key returned in a truncated response.

Type: String

MaxKeys

Specifies the maximum number of objects to return.

Type: Integer

Name

The bucket name.

Type: String

NextKeyMarker

When the number of responses exceeds the value of MaxKeys, NextKeyMarker specifies the first key not returned that satisfies the search criteria. Use this value for the key-marker request parameter in a subsequent request.

Type: String

NextVersionIdMarker

When the number of responses exceeds the value of MaxKeys, NextVersionIdMarker specifies the first object version not returned that satisfies the search criteria. Use this value for the version-id-marker request parameter in a subsequent request.

Type: String

Prefix

Selects objects that start with the value supplied by this parameter.

Type: String

Version

Container for version information.

Type: Array of ObjectVersion data types

VersionIdMarker

Marks the last version of the key returned in a truncated response.

Type: String

Examples