Overview

This API allows you to send a request to restore an ARCHIVED/DEEP ARCHIVED object so that you can read it. The restored readable object is a temporary copy, for which you can set Keep Readable and the time at which to delete it at a later point. You can use the Days parameter to specify the expiration time of the temporary object. If the time is exceeded and you haven’t initiated a copy, extension, or any other operation, the temporary object will be automatically deleted. Temporary objects are only copies of the archived objects which always exist. For more information about ARCHIVE, please see Storage Class Overview - ARCHIVE.

Note：

The QPS of the POST Object restore API is limited to 100.

Versioning

If versioning is enabled, you can use the versionId parameter in your request to specify the ID of the version to restore. If this parameter is not specified, the latest version will be restored.

Request

Sample request

POST /<ObjectKey>?restore HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Content-Type: application/xml
Content-Length: Content Length
Content-MD5: MD5
Authorization: Auth String

[Request Body]

Note：

• In Host: <bucketname-appid>.cos.<region>.myqcloud.com, is the bucket name followed by the APPID, such as examplebucket-1250000000 (see Bucket Overview > Basic Information and Bucket Overview > Bucket Naming Conventions), and is a COS region (see Regions and Access Endpoints).
• Authorization: Auth String (see Request Signature for more information).

Request parameters

Request headers

This API only uses Common Request Headers.

Request body

Contains the application/xml request data, including specific parameters of the restore operation.

<RestoreRequest>
<Days>number</Days>
<CASJobParameters>
   <Tier>Enum</Tier>
</CASJobParameters>
</RestoreRequest>

The nodes are described as follows:

Content of RestoreRequest:

Content of CASJobParameters:

Response

Response headers

This API only returns Common Response Headers.

Response body

The response body of this API is empty.

Error codes

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

Examples

Example 1: simple use case (with versioning disabled)

Request

POST /exampleobject?restore HTTP/1.1
Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
Date: Fri, 27 Dec 2019 08:19:29 GMT
Content-Type: application/xml
Content-Length: 121
Content-MD5: Nr7RAnRMgrplFvD8bt5+0w==
Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1577434769;1577441969&q-key-time=1577434769;1577441969&q-header-list=content-length;content-md5;content-type;date;host&q-url-param-list=restore&q-signature=ed3ee8ca63689dbff4be1533fddc17c0b4d8****
Connection: close

<RestoreRequest>
<Days>1</Days>
<CASJobParameters>
<Tier>Expedited</Tier>
</CASJobParameters>
</RestoreRequest>

Response

HTTP/1.1 202 Accepted
Content-Length: 0
Connection: close
Date: Fri, 27 Dec 2019 08:19:29 GMT
Server: tencent-cos
x-cos-request-id: NWUwNWJlOTFfMjljOTBiMDlfMTQ2MmNfNzAw****

Example 2: restoring an object of a specific version (with versioning enabled)

Request

POST /exampleobject?restore&versionId=MTg0NDUxNjQ1NjM4OTkzNzY3NDk HTTP/1.1
Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
Date: Mon, 20 Jan 2020 08:43:40 GMT
Content-Type: application/xml
Content-Length: 121
Content-MD5: Nr7RAnRMgrplFvD8bt5+0w==
Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1579509820;1579517020&q-key-time=1579509820;1579517020&q-header-list=content-length;content-md5;content-type;date;host&q-url-param-list=restore;versionid&q-signature=f92b1c6753c452bed9ade49739ddb81a0a47****
Connection: close

<RestoreRequest>
<Days>1</Days>
<CASJobParameters>
<Tier>Expedited</Tier>
</CASJobParameters>
</RestoreRequest>

Response

HTTP/1.1 202 Accepted
Content-Length: 0
Connection: close
Date: Mon, 20 Jan 2020 08:43:41 GMT
Server: tencent-cos
x-cos-request-id: NWUyNTY4M2NfZTNjODJhMDlfMWZkM2VfNWZm****