getObjectMeta method
Returns object metadata.
The method is equivalent to get, except the object is not included in the response.
For more information on getting started with the API and the general request format, see How to use the S3 API.
Request
HEAD /{bucket}/{key} HTTP/2
Path parameters
| Parameter | Description |
|---|---|
bucket |
Bucket name. |
key |
Object key. |
Headers
Use the appropriate common headers in your request.
You can also use the following headers in your request:
| Header | Description |
|---|---|
Range |
It defines the range of bytes to load from the object. For more information about the Range header, see the HTTP specification http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35. |
If-Modified-Since |
If it is specified, Object Storage returns the following: - Object. If it has been modified since the specified time. - Code 304. If the object has not been modified since the specified time. If a request has both the If-Modified-Since and If-None-Match headers and their checks result in If-Modified-Since -> true and If-None-Match -> false, Object Storage returns a 304 code. For more information, see RFC 7232. |
If-Unmodified-Since |
If it is specified, Object Storage returns the following: - Object. If it has not been modified since the specified time. - Code 412. If the object has been modified since the specified time. If a request has both the If-Unmodified-Since and If-Match headers and their checks result in If-Unmodified-Since -> false and If-Match -> true, Object Storage returns a 200 code and the requested data. For more information, see RFC 7232. |
If-Match |
If it is specified, Object Storage returns the following: - Object. If its ETag matches the provided one.- Code 412. If its ETag does not match the provided one.If a request has both the If-Unmodified-Since and If-Match headers and their checks result in If-Unmodified-Since -> false and If-Match -> true, Object Storage returns a 200 code and the requested data. For more information, see RFC 7232. |
If-None-Match |
If it is specified, Object Storage returns the following: - Object. If its ETag does not match the provided one.- Code 304. If its ETag matches the provided one.If a request has both the If-Modified-Since and If-None-Match headers and their checks result in If-Modified-Since -> true and If-None-Match -> false, Object Storage returns a 304 code. For more information, see RFC 7232. |
Response
Headers
In addition to common headers, you can see in a response the headers listed in the table below.
| Header | Description |
|---|---|
X-Amz-Meta-* |
User-defined object metadata. |
X-Amz-Storage-Class |
Storage class of the object. It takes the COLD value if the object is in a cold storage, or ICE, if it is in an ice storage.If the object is in a standard storage, there is no header. |
X-Amz-Server-Side-Encryption |
Encryption algorithm used to encrypt the object. It is returned if the object was uploaded with encryption enabled. |
X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id |
KMS key ID. It is returned if the object was uploaded with encryption enabled. |
X-Amz-Object-Lock-Mode |
Type of retention put on the object (if the bucket is versioned and object lock is enabled in it):
For an object version, you can use only retention (the |
X-Amz-Object-Lock-Retain-Until-Date |
Retention end date and time in any format described in the HTTP standard, e.g., Mon, 12 Dec 2022 09:00:00 GMT. Specify it only with the X-Amz-Object-Lock-Mode header. |
X-Amz-Object-Lock-Legal-Hold |
Type of legal hold put on the object (if the bucket is versioned and object lock is enabled in it):
For an object version, you can use only retention (the |
Response codes
For a list of possible responses, see Responses.