HeadObject

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Available in Classic and VPC

View object headers based on the specified headers. No request query parameter or request body is used in the operation.

Requests

The following describes the request format for the endpoint. The request format is as follows.

Method URI
HEAD /{bucket-name}/{object-name}

Request syntax

The request syntax is as follows.

HEAD https://{endpoint}/{bucket-name}/{object-name} # path style
HEAD https://{bucket-name}.{endpoint}/{object-name} # virtual host style

Request headers

The following describes the HeadObject header. For headers common to all Object Storage APIs, see Object Storage common request headers.

Field Type Required Description
range String Optional Return the size of the object in bytes within a specified range
if-match String Optional Return the object if the specified ETag string matches the source object
if-none-match String Optional Return the object if the specified ETag string is different from the source object
if-unmodified-since String Optional Return the object if the source object hasn't been edited since the specified date
  • Must be in a valid date format
    • <Example> Wed, 30 Nov 2016 20:21:38 GMT
if-modified-since String Optional Return the object if the source object was edited after the specified date
  • Must be in a valid date format
    • <Example> Wed, 30 Nov 2016 20:21:38 GMT

Request path parameters

The following describes the parameters.

Field Type Required Description
bucket-name String Required Name of the bucket to view object headers in
object-name String Required Name of the object whose headers you want to view

Request example

The following is a sample request.

HEAD /example-bucket/soldier-bee HTTP/1.1
Authorization: {authorization-string}
x-amz-date: 20160825T183244Z
Host: kr.object.ncloudstorage.com

Responses

The following describes the response format.

Response headers

For response headers common to all Object Storage APIs, see Object Storage common response headers.

Response status codes

For response status codes common to all Object Storage APIs, see Object Storage response status codes.

Response example

The following is a sample response.

HTTP/1.1 200 OK
Date: Thu, 25 Aug 2016 18:32:44 GMT
Accept-Ranges: bytes
x-amz-request-id: da214d69-1999-4461-a130-81ba33c484a6
ETag: "37d4c94839ee181a2224d6242176c4b5"
Content-Type: text/plain; charset=UTF-8
Last-Modified: Thu, 25 Aug 2016 17:49:06 GMT
Content-Length: 11