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GET Bucket Object Versions

Terakhir diperbarui:2024-03-28 18:08:33

    

    Overview

    This API is used to get all objects in a bucket and their historical version information. You can also filter certain objects and their version information by specifying relevant parameters. To call this API, you need to have permission to read the bucket.
    

    Request

    Sample request

    GET /?versions HTTP/1.1
    Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
    Date: GMT Date
    Authorization: Auth String
    Note:
    In Host: <BucketName-APPID>.cos.<Region>.myqcloud.com, <BucketName-APPID> is the bucket name followed by the APPID, such as examplebucket-1250000000 (see Bucket Overview > Basic Information and Bucket Overview > Bucket Naming Conventions), and <Region> is a COS region (see Regions and Access Endpoints).
    Authorization: Auth String (See Request Signature for details.)

    Request parameters

    Header
    Description
    Type
    Required
    prefix
    Matching prefix for object keys. The response will contain only object keys with the specified prefix.
    string
    No
    delimiter
    A character delimiter used to group object keys. Keys that contain identical paths between the prefix (or, if no prefix is specified, the beginning of the string) and the first delimiter are grouped and defined as a Prefix node under CommonPrefixes. The grouped object keys will no longer appear in the subsequent object list. For specific scenarios and usage, see the examples below
    string
    No
    encoding-type
    Encoding type of the returned value. Valid value: url, meaning that the returned object keys are URL-encoded (percent-encoded) values. For example, "Tencent Cloud" will be encoded to %E8%85%BE%E8%AE%AF%E4%BA%91.
    string
    No
    key-marker
    Marker for the starting object key. Object version entries after this marker will be returned in UTF-8 lexicographical order.
    string
    No
    version-id-marker
    Marker for the starting version ID. Object version entries after this marker will be returned. If NextVersionIdMarker is empty in the last ListVersionsResult response, leave this parameter empty.
    string
    No
    max-keys
    The maximum number (up to 1,000) of keys returned in a response. Defaults to 1000.
    Note: This parameter limits the maximum number of keys (the sum of CommonPrefixes, Version, and DeleteMarker’) COS can return in each ListVersionsResult response. If not all objects are listed in a single response, COS will return the NextKeyMarker and NextVersionIdMarker nodes, the values of which can be used to specify key-marker and version-id-marker`, respectively, so that the remaining versions can be listed in your next request.
    integer
    No

    Request headers

    This API only uses Common Request Headers.

    Request body

    This API does not have a request body.

    Response

    Response headers

    This API only returns Common Response Headers.

    Response body

    A successful query returns application/xml data, which contains information about object versions in the bucket. For the response bodies of different scenarios, see the examples below.
    <ListVersionsResult>
    <EncodingType>string</EncodingType>
    <Name>string</Name>
    <Prefix>string</Prefix>
    <KeyMarker>string</KeyMarker>
    <VersionIdMarker>string</VersionIdMarker>
    <MaxKeys>integer</MaxKeys>
    <IsTruncated>boolean</IsTruncated>
    <NextKeyMarker>string</NextKeyMarker>
    <NextVersionIdMarker>string</NextVersionIdMarker>
    <Delimiter>string</Delimiter>
    <CommonPrefixes>
    <Prefix>string</Prefix>
    </CommonPrefixes>
    <CommonPrefixes>
    <Prefix>string</Prefix>
    </CommonPrefixes>
    <Version>
    <Key>string</Key>
    <VersionId>string</VersionId>
    <IsLatest>boolean</IsLatest>
    <LastModified>date</LastModified>
    <ETag>string</ETag>
    <Size>integer</Size>
    <StorageClass>Enum</StorageClass>
    <StorageTier>Enum</StorageTier>
    <Owner>
    <ID>string</ID>
    <DisplayName>string</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>string</Key>
    <VersionId>string</VersionId>
    <IsLatest>boolean</IsLatest>
    <LastModified>date</LastModified>
    <Owner>
    <ID>string</ID>
    <DisplayName>string</DisplayName>
    </Owner>
    </DeleteMarker>
    <Version>
    <Key>string</Key>
    <VersionId>string</VersionId>
    <IsLatest>boolean</IsLatest>
    <LastModified>date</LastModified>
    <ETag>string</ETag>
    <Size>integer</Size>
    <StorageClass>Enum</StorageClass>
    <StorageTier>Enum</StorageTier>
    <Owner>
    <ID>string</ID>
    <DisplayName>string</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>string</Key>
    <VersionId>string</VersionId>
    <IsLatest>boolean</IsLatest>
    <LastModified>date</LastModified>
    <Owner>
    <ID>string</ID>
    <DisplayName>string</DisplayName>
    </Owner>
    </DeleteMarker>
    </ListVersionsResult>
    The nodes are described as follows:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    ListVersionsResult
    None
    Stores the result of GET Bucket Object versions.
    Container
    Content of ListVersionsResult:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    EncodingType
    ListVersionsResult
    Encoding type, which corresponds to the encoding-type parameter in the request. This node will be returned only when the encoding-type parameter is specified in the request.
    string
    Name
    ListVersionsResult
    Bucket name, formatted as <BucketName-APPID>, such as examplebucket-1250000000
    string
    Prefix
    ListVersionsResult
    Matching prefix to filter object keys. This node corresponds to the Prefix parameter in the request.
    string
    KeyMarker
    ListVersionsResult
    Marks the object key to start with. Object version entries after the marker will be returned in UTF-8 lexicographical order. This node corresponds to the key-marker parameter in the request.
    string
    VersionIdMarker
    ListVersionsResult
    Marks the version ID to start with. Object version entries after the marker will be returned. This node corresponds to the version-id-marker parameter in the request.
    string
    MaxKeys
    ListVersionsResult
    Maximum number of keys returned in a single response. This node corresponds to the max-keys parameter in the request.
    integer
    IsTruncated
    ListVersionsResult
    Indicates whether the returned list is truncated. Valid values: true, false
    boolean
    NextKeyMarker
    ListVersionsResult
    This node will be returned only if the returned list is truncated (i.e., the value of IsTruncated is true). The value of this node is the last object key in the current response. If you need to request subsequent entries, the value can be passed in as the value of the key-marker parameter in the next request.
    string
    NextVersionIdMarker
    ListVersionsResult
    This node will be returned only if the returned list is truncated (i.e., the value of IsTruncated is true). The value of this node is the last version ID in the current response. If you need to request subsequent entries, the value can be passed in as the value of the version-id-marker parameter in the next request. If this node is left empty, version-id-marker in the next request should also be left empty.
    string
    Delimiter
    ListVersionsResult
    Delimiter, which corresponds to the delimiter parameter in the request and will be returned only if the delimiter parameter is specified in the request.
    string
    CommonPrefixes
    ListVersionsResult
    The identical paths between the prefix (or, if no prefix is specified, the beginning of the string) and the first delimiter are grouped and defined as a common prefix. This node will be returned only if the delimiter parameter is specified in the request.
    Container
    Version
    ListVersionsResult
    Object version entry
    Container
    DeleteMarker
    ListVersionsResult
    Object delete marker entry
    Container
    Content of CommonPrefixes:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    Prefix
    ListVersionsResult.CommonPrefixes
    A single common prefix
    string
    Content of Version:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    Key
    ListVersionsResult.Version
    Object key
    string
    VersionId
    ListVersionsResult.Version
    Version ID of the object
    If versioning is disabled, the value of this node is an empty string.
    If versioning is enabled, the value of this node is null for an object uploaded before you enable versioning.
    If versioning is suspended, the value of this node is null for an object uploaded after you suspend versioning. Note that each object can have only one object version whose ID is null.
    string
    IsLatest
    ListVersionsResult.Version
    Indicates whether the current version is the latest one of the object.
    boolean
    LastModified
    ListVersionsResult.Version
    Last modified time of the current version, in ISO 8601 format (for example, 2019-05-24T10:56:40Z)
    date
    ETag
    ListBucketResult.Contents
    Entity tag of the object. It indicates the content of the object when it is created and can be used to verify whether the object content is changed.
    Example: "8e0b617ca298a564c3331da28dcb50df" The value of ETag is not necessarily the MD5 checksum of the object. The value will be different if the uploaded object is encrypted.
    string
    Size
    ListVersionsResult.Version
    Object size, in bytes
    integer
    StorageClass
    ListVersionsResult.Version
    Object storage class, such as STANDARD_IA or ARCHIVE. For enumerated values, please see Storage Class Overview.
    Enum
    StorageTier
    ListVersionsResult.Version
    Access tier (for INTELLIGENT TIERING) the object is currently stored in. Enumerated values: FREQUENT, INFREQUENT. This node is returned only when StorageClass is set to INTELLIGENT_TIERING.
    Enum
    Owner
    ListVersionsResult.Version
    Information of the object owner
    Container
    Content of Version.Owner:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    ID
    ListVersionsResult.Version.Owner
    APPID of the object owner
    string
    DisplayName
    ListVersionsResult.Version.Owner
    Name of the object owner
    string
    Content of DeleteMarker:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    Key
    ListVersionsResult.DeleteMarker
    Object key
    string
    VersionId
    ListVersionsResult.DeleteMarker
    Version ID of the object delete marker
    string
    IsLatest
    ListVersionsResult.DeleteMarker
    Indicates whether the current delete marker version is the latest one of the object.
    boolean
    LastModified
    ListVersionsResult.DeleteMarker
    Last modified time of the current delete marker, in ISO 8601 format (for example, 2019-05-24T10:56:40Z)
    date
    Owner
    ListVersionsResult.DeleteMarker
    Information of the object owner
    Container
    Content of DeleteMarker.Owner:
    Node Name (Keyword)
    Parent Node
    Description
    Type
    ID
    ListVersionsResult.DeleteMarker.Owner
    APPID of the object owner
    string
    DisplayName
    ListVersionsResult.DeleteMarker.Owner
    Name of the object owner
    string

    Error codes

    This API returns common error responses and error codes. For more information, please see Error Codes.

    Examples

    Example 1: versioning not enabled

    Request

    GET /?versions HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 10 Dec 2020 03:35:34 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607571334;1607578534&q-key-time=1607571334;1607578534&q-header-list=date;host&q-url-param-list=versions&q-signature=1c39a124c84ec844e56cb1031a511568c16f****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 952
    Connection: close
    Date: Thu, 10 Dec 2020 03:35:34 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMTk3ODZfZDUyNzVkNjRfNDgxYl8xNjU5****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
    <Key>example-object-1.jpg</Key>
    <VersionId/>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:35:24.000Z</LastModified>
    <ETag>&quot;0f0cd12c48979d1bf3f95255a36cb861&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId/>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:35:24.000Z</LastModified>
    <ETag>&quot;dcffaafe67632b2bd2dd0b9456eafca7&quot;</ETag>
    <Size>23</Size>
    <StorageClass>INTELLIGENT_TIERING</StorageClass>
    <StorageTier>FREQUENT</StorageTier>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 2. Uploading an object and then enabling versioning, making its version ID null (a continuity of example 1)

    Request

    GET /?versions HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 10 Dec 2020 03:36:05 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607571365;1607578565&q-key-time=1607571365;1607578565&q-header-list=date;host&q-url-param-list=versions&q-signature=569318dd515c682db22c704d61314156e790****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 2070
    Connection: close
    Date: Thu, 10 Dec 2020 03:36:05 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMTk3YTVfYjFiODJhMDlfNTg0MDZfMTdj****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
    <Key>example-object-1.jpg</Key>
    <VersionId>null</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:35:24.000Z</LastModified>
    <ETag>&quot;0f0cd12c48979d1bf3f95255a36cb861&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY1MDIzNjQ3NTcwMDk</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:35:44.000Z</LastModified>
    <ETag>&quot;51ffadb19b3bf062ecd0c6f044a4d4ce&quot;</ETag>
    <Size>23</Size>
    <StorageClass>STANDARD_IA</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>null</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T03:35:24.000Z</LastModified>
    <ETag>&quot;dcffaafe67632b2bd2dd0b9456eafca7&quot;</ETag>
    <Size>23</Size>
    <StorageClass>INTELLIGENT_TIERING</StorageClass>
    <StorageTier>FREQUENT</StorageTier>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>example-object-3.jpg</Key>
    <VersionId>MTg0NDUxMzY1MDIzNTQ1ODM2NjE</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:35:54.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    <Version>
    <Key>example-object-3.jpg</Key>
    <VersionId>MTg0NDUxMzY1MDIzNjQ3NjM2MDY</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T03:35:44.000Z</LastModified>
    <ETag>&quot;b2f1d893c5fde000ee8ea6eca18ed81f&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 3. Suspending versioning and then uploading an object, making its version ID null (each object can have only one object version whose ID is null) (a continuity of example 2)

    Request

    GET /?versions HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 10 Dec 2020 03:36:25 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607571385;1607578585&q-key-time=1607571385;1607578585&q-header-list=date;host&q-url-param-list=versions&q-signature=a42ed543ef094e42c8159d8788c509933f20****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 2396
    Connection: close
    Date: Thu, 10 Dec 2020 03:36:25 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMTk3YjlfNDhhOTBiMDlfMTYzNTZfMTIw****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
    <Key>example-object-1.jpg</Key>
    <VersionId>null</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:35:24.000Z</LastModified>
    <ETag>&quot;0f0cd12c48979d1bf3f95255a36cb861&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>null</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:36:15.000Z</LastModified>
    <ETag>&quot;51ffadb19b3bf062ecd0c6f044a4d4ce&quot;</ETag>
    <Size>23</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY1MDIzNjQ3NTcwMDk</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T03:35:44.000Z</LastModified>
    <ETag>&quot;51ffadb19b3bf062ecd0c6f044a4d4ce&quot;</ETag>
    <Size>23</Size>
    <StorageClass>STANDARD_IA</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-3.jpg</Key>
    <VersionId>null</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T03:36:15.000Z</LastModified>
    <ETag>&quot;b2f1d893c5fde000ee8ea6eca18ed81f&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>example-object-3.jpg</Key>
    <VersionId>MTg0NDUxMzY1MDIzNTQ1ODM2NjE</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T03:35:54.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    <Version>
    <Key>example-object-3.jpg</Key>
    <VersionId>MTg0NDUxMzY1MDIzNjQ3NjM2MDY</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T03:35:44.000Z</LastModified>
    <ETag>&quot;b2f1d893c5fde000ee8ea6eca18ed81f&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 4. Specifying the encoding-type parameter (object keys are URL-encoded)

    Request

    GET /?versions&encoding-type=url HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 10 Dec 2020 04:54:22 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607576062;1607583262&q-key-time=1607576062;1607583262&q-header-list=date;host&q-url-param-list=encoding-type;versions&q-signature=9dd5519032837d42fd3bf89fcdeed3889e7c****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 2167
    Connection: close
    Date: Thu, 10 Dec 2020 04:54:22 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMWE5ZmVfZTdjODJhMDlfMzgxZl8xMzQ1****
    
    
    
    <ListVersionsResult>
    <EncodingType>url</EncodingType>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
    <Key>Tencent%20Cloud.jpg</Key>
    <VersionId>MTg0NDUxMzY0OTc2NjcxNzE4NjA</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T04:54:02.000Z</LastModified>
    <ETag>&quot;ee8de918d05640145b18f70f4c3aa602&quot;</ETag>
    <Size>16</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>%E7%85%A7%E7%89%87/2020%E5%B9%B4/IMG0001.jpg</Key>
    <VersionId>MTg0NDUxMzY0OTc2NTY5MDU3OTc</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T04:54:12.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    <Version>
    <Key>%E7%85%A7%E7%89%87/2020%E5%B9%B4/IMG0001.jpg</Key>
    <VersionId>MTg0NDUxMzY0OTc2NjcwNjMwMDQ</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T04:54:02.000Z</LastModified>
    <ETag>&quot;ee8de918d05640145b18f70f4c3aa602&quot;</ETag>
    <Size>16</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>%E8%85%BE%E8%AE%AF%E4%BA%91.jpg</Key>
    <VersionId>MTg0NDUxMzY0OTc2NTY5MDA4NzU</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T04:54:12.000Z</LastModified>
    <ETag>&quot;8bb76a43f75d3b96442c470f8ec23b89&quot;</ETag>
    <Size>16</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>%E8%85%BE%E8%AE%AF%E4%BA%91.jpg</Key>
    <VersionId>MTg0NDUxMzY0OTc2NjcxNzA2ODg</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T04:54:02.000Z</LastModified>
    <ETag>&quot;dcc880c5eba9e002bc4567c733b0e63e&quot;</ETag>
    <Size>13</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 5. Specifying the delimiter parameter (listing object versions and subdirectories in the root directory)

    Request

    GET /?versions&delimiter=%2F HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 10 Dec 2020 07:04:03 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607583843;1607591043&q-key-time=1607583843;1607591043&q-header-list=date;host&q-url-param-list=delimiter;versions&q-signature=9eaea1e6072c7175cb593e08b69223521217****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 1893
    Connection: close
    Date: Thu, 10 Dec 2020 07:04:03 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMWM4NjNfNzFjODJhMDlfMjlhZTRfMTg5****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Delimiter>/</Delimiter>
    <CommonPrefixes>
    <Prefix>example-folder-1/</Prefix>
    </CommonPrefixes>
    <CommonPrefixes>
    <Prefix>example-folder-2/</Prefix>
    </CommonPrefixes>
    <DeleteMarker>
    <Key>example-object-1.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4NzYzNTE4Nzk</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T07:03:53.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    <Version>
    <Key>example-object-1.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4ODY2NTcxMzY</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T07:03:42.000Z</LastModified>
    <ETag>&quot;0f0cd12c48979d1bf3f95255a36cb861&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4NzYzODYyODA</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T07:03:53.000Z</LastModified>
    <ETag>&quot;51ffadb19b3bf062ecd0c6f044a4d4ce&quot;</ETag>
    <Size>23</Size>
    <StorageClass>INTELLIGENT_TIERING</StorageClass>
    <StorageTier>FREQUENT</StorageTier>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4ODY2NTA0Mjk</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T07:03:42.000Z</LastModified>
    <ETag>&quot;dcffaafe67632b2bd2dd0b9456eafca7&quot;</ETag>
    <Size>23</Size>
    <StorageClass>STANDARD_IA</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 6. Specifying the prefix and delimiter parameters (listing object versions and subdirectories in a specified subdirectory)

    Request

    GET /?versions&prefix=example-folder-1%2F&delimiter=%2F HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 10 Dec 2020 07:04:03 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607583843;1607591043&q-key-time=1607583843;1607591043&q-header-list=date;host&q-url-param-list=delimiter;prefix;versions&q-signature=c09ffca0377304f9a12cb2d8e223ede35569****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 1960
    Connection: close
    Date: Thu, 10 Dec 2020 07:04:03 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMWM4NjNfZWVjODJhMDlfNTNmN18xNWNj****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix>example-folder-1/</Prefix>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Delimiter>/</Delimiter>
    <CommonPrefixes>
    <Prefix>example-folder-1/sub-folder-1/</Prefix>
    </CommonPrefixes>
    <CommonPrefixes>
    <Prefix>example-folder-1/sub-folder-2/</Prefix>
    </CommonPrefixes>
    <DeleteMarker>
    <Key>example-folder-1/example-object-1.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4NzYzNjE4NzA</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T07:03:53.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    <Version>
    <Key>example-folder-1/example-object-1.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4ODY2NTAzOTY</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T07:03:42.000Z</LastModified>
    <ETag>&quot;f173c1199e3d3b53dd91223cae16fb42&quot;</ETag>
    <Size>37</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-folder-1/example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4NzYzNzc2ODY</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-10T07:03:53.000Z</LastModified>
    <ETag>&quot;f52cc0bc2042d201b852385927bcab95&quot;</ETag>
    <Size>40</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-folder-1/example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY0ODk4ODY2NjQ2NDc</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-10T07:03:42.000Z</LastModified>
    <ETag>&quot;7b3be6c39746a970d628e6ab9f250342&quot;</ETag>
    <Size>40</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 7. Obtaining the first page of keys when there are more than one page (this example specifies max-keys. If not specified, the value 1000 is used by default. The sum of Version and DeleteMarker cannot exceed the value of max-keys)

    Request

    GET /?versions&max-keys=3 HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Tue, 08 Dec 2020 12:46:40 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607431600;1607438800&q-key-time=1607431600;1607438800&q-header-list=date;host&q-url-param-list=max-keys;versions&q-signature=eddd43e98a9001e92f52896de6f8ce88bff5****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 1390
    Connection: close
    Date: Tue, 08 Dec 2020 12:46:40 GMT
    Server: tencent-cos
    x-cos-request-id: NWZjZjc1YjBfYjBhODBiMDlfZDU5Yl9jYjBl****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>3</MaxKeys>
    <IsTruncated>true</IsTruncated>
    <NextKeyMarker>example-object-2.jpg</NextKeyMarker>
    <NextVersionIdMarker>MTg0NDUxMzY2NDIxMjk3MzMwOTM</NextVersionIdMarker>
    <Version>
    <Key>example-object-1.jpg</Key>
    <VersionId>MTg0NDUxMzY2NDIxNTAwOTk4NzA</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-08T12:45:59.000Z</LastModified>
    <ETag>&quot;15f0f671f04af108023b5603bea2bfda&quot;</ETag>
    <Size>23</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-1.jpg</Key>
    <VersionId>MTg0NDUxMzY2NDIxNjAyODcyNzk</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-08T12:45:49.000Z</LastModified>
    <ETag>&quot;601389434817e2781d8efb35c0e44717&quot;</ETag>
    <Size>23</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY2NDIxMjk3MzMwOTM</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-08T12:46:19.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    </ListVersionsResult>

    Example 8: Obtaining the subsequent pages with key-marker and version-id-marker specified (a continuity of example 7)

    Request

    GET /?versions&max-keys=3&key-marker=example-object-2.jpg&version-id-marker=MTg0NDUxMzY2NDIxMjk3MzMwOTM HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Tue, 08 Dec 2020 12:46:41 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607431601;1607438801&q-key-time=1607431601;1607438801&q-header-list=date;host&q-url-param-list=key-marker;max-keys;version-id-marker;versions&q-signature=ad52682a1febcc068b6420432017daee8145****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 1052
    Connection: close
    Date: Tue, 08 Dec 2020 12:46:41 GMT
    Server: tencent-cos
    x-cos-request-id: NWZjZjc1YjFfNjljMDBiMDlfNjQwOV8xYjM2****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker>example-object-2.jpg</KeyMarker>
    <VersionIdMarker>MTg0NDUxMzY2NDIxMjk3MzMwOTM</VersionIdMarker>
    <MaxKeys>3</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
    <Key>example-object-2.jpg</Key>
    <VersionId>MTg0NDUxMzY2NDIxMzk5MDk1NzU</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-08T12:46:09.000Z</LastModified>
    <ETag>&quot;51370fc64b79d0d3c7c609635be1c41f&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <Version>
    <Key>example-object-3.jpg</Key>
    <VersionId>MTg0NDUxMzY2NDIxMTk1NTEyNDI</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-08T12:46:30.000Z</LastModified>
    <ETag>&quot;b2f1d893c5fde000ee8ea6eca18ed81f&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 9. Specifying the object to start with using the key-marker parameter but not the version-id-marker parameter (a continuity of example 7)

    Request

    GET /?versions&max-keys=3&key-marker=example-object-2.jpg HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Tue, 08 Dec 2020 12:46:41 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607431601;1607438801&q-key-time=1607431601;1607438801&q-header-list=date;host&q-url-param-list=key-marker;max-keys;versions&q-signature=0ed7ce0e8402e35b0ffd2fac429a638a56ea****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 610
    Connection: close
    Date: Tue, 08 Dec 2020 12:46:42 GMT
    Server: tencent-cos
    x-cos-request-id: NWZjZjc1YjJfZGZjMTBiMDlfNzAyYl8xMzkx****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker>example-object-2.jpg</KeyMarker>
    <VersionIdMarker/>
    <MaxKeys>3</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
    <Key>example-object-3.jpg</Key>
    <VersionId>MTg0NDUxMzY2NDIxMTk1NTEyNDI</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-08T12:46:30.000Z</LastModified>
    <ETag>&quot;b2f1d893c5fde000ee8ea6eca18ed81f&quot;</ETag>
    <Size>20</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    </ListVersionsResult>

    Example 10. Obtaining the first page of keys when there are more than one page (with delimiter specified and the sum of CommonPrefixes, Version, and DeleteMarker not exceeding the value of max-keys)

    Request

    GET /?versions&delimiter=%2F&max-keys=3 HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Wed, 09 Dec 2020 13:40:24 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607521224;1607528424&q-key-time=1607521224;1607528424&q-header-list=date;host&q-url-param-list=delimiter;max-keys;versions&q-signature=fdd9031684c544bca32fae81da75b9216079****
    Connection: close
    

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 503
    Connection: close
    Date: Wed, 09 Dec 2020 13:40:24 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMGQzYzhfYmIwMmEwOV83OGU4XzZj****
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker/>
    <VersionIdMarker/>
    <MaxKeys>3</MaxKeys>
    <IsTruncated>true</IsTruncated>
    <NextKeyMarker>example-folder-3/</NextKeyMarker>
    <NextVersionIdMarker/>
    <Delimiter>/</Delimiter>
    <CommonPrefixes>
    <Prefix>example-folder-1/</Prefix>
    </CommonPrefixes>
    <CommonPrefixes>
    <Prefix>example-folder-2/</Prefix>
    </CommonPrefixes>
    <CommonPrefixes>
    <Prefix>example-folder-3/</Prefix>
    </CommonPrefixes>
    </ListVersionsResult>

    Example 11. Obtaining the subsequent pages with delimiter specified and version-id-marker left empty (as the value of NextVersionIdMarker is empty on the first page) (a continuity of example 10)

    Request

    GET /?versions&delimiter=%2F&max-keys=3&key-marker=example-folder-3%2F&version-id-marker= HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Wed, 09 Dec 2020 14:02:32 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1607522552;1607529752&q-key-time=1607522552;1607529752&q-header-list=date;host&q-url-param-list=delimiter;key-marker;max-keys;version-id-marker;versions&q-signature=fd4b2ab426e4531be2e52c02d5bd0e747ee7****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 1115
    Connection: close
    Date: Wed, 09 Dec 2020 14:02:32 GMT
    Server: tencent-cos
    x-cos-request-id: NWZkMGQ4ZjhfZmVhODBiMDlfMTI3NzVfMTBj****
    
    
    
    <ListVersionsResult>
    <Name>examplebucket-1250000000</Name>
    <Prefix/>
    <KeyMarker>example-folder-3/</KeyMarker>
    <VersionIdMarker/>
    <MaxKeys>3</MaxKeys>
    <IsTruncated>true</IsTruncated>
    <NextKeyMarker>example-object.jpg</NextKeyMarker>
    <NextVersionIdMarker>MTg0NDUxMzY1NTExNzc4NTYzMTk</NextVersionIdMarker>
    <Delimiter>/</Delimiter>
    <CommonPrefixes>
    <Prefix>example-folder-4/</Prefix>
    </CommonPrefixes>
    <Version>
    <Key>example-object.jpg</Key>
    <VersionId>MTg0NDUxMzY1NTExNjc2OTk4MjE</VersionId>
    <IsLatest>true</IsLatest>
    <LastModified>2020-12-09T14:02:21.000Z</LastModified>
    <ETag>&quot;3979f6bb23f827d258be64cc0d8df5fb&quot;</ETag>
    <Size>21</Size>
    <StorageClass>STANDARD</StorageClass>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </Version>
    <DeleteMarker>
    <Key>example-object.jpg</Key>
    <VersionId>MTg0NDUxMzY1NTExNzc4NTYzMTk</VersionId>
    <IsLatest>false</IsLatest>
    <LastModified>2020-12-09T14:02:11.000Z</LastModified>
    <Owner>
    <ID>1250000000</ID>
    <DisplayName>1250000000</DisplayName>
    </Owner>
    </DeleteMarker>
    </ListVersionsResult>
    
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