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Response headers (GET object)

The table below describes the headers returned in response to a successful request to retrieve an object.

Response header Description
Accept-Ranges Indicates that HCP can accept requests for part of the object data, specified as a range of bytes. The value of this header is always bytes.
Content-Length Specifies the size, in bytes, of the returned data.
Content-Range Specifies the range of bytes retrieved out of the total size of the object data. This header is returned only if the request headers include Range.
Content-Type

Specifies the Internet media type of the object or object version. This is one of, in order of precedence:

The Internet media type specified by the response-content-type request header.

The Internet media type specified in the Content-Type header when the object was stored.

An Internet media type determined by HCP based on the object name.

application/octet-stream if HCP cannot determine the Internet media type.

Date See Common response headers.
ETag Specifies the ETag for the target object.
Last-Modified

Specifies the date and time when the object or object version was last modified, in Greenwich Mean Time (GMT). For a delete marker, this is the date and time when the delete marker was created.

The date and time are expressed in this format:

DDD, dd MMM yyyy HH:mm:ss GMT

For example:

Tue, 17 Feb 2017 19:46:03 GMT

Modifying an object means modifying its metadata. You cannot modify the content of an object.

x-amz-meta- Specifies a custom metadata property/value pair. The response headers include one x-amz-meta- header for each applicable pair. For more information about this header, see Retrieving custom metadata with the S3 compatible API.
x-amz-missing-
  meta
Indicates that the .metapairs annotation for the object or object version doesn’t contain valid XML or that the first line in the annotation doesn’t begin with the metapairs element. This header is returned only when applicable. The value is always 1 (one).
x-amz-version-id Specifies the version ID of the target object. This header is returned only while versioning is enabled for the target bucket.
x-hcp-retention Specifies the retention value for the object being stored. This value can be a fixed date, an offset, a retention class, or a special value.
x-hcp-retentionhold Specifies whether the object is on hold. This value can be either true or false.

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