PutObject

Loads an object and its metadata to ColdStack.

Note

ColdStack does not block an object for writing and can accept several requests for writing one object at the same time, however, by default, the user will be able to get only the last written object from ColdStack. To preserve history when overwriting or deleting objects, turn on versioning .

Use a header to ensure that the object is transmitted over the network without damage Content-MD5. ColdStack will calculate MD5for the stored object and if the calculated MD5does not match the one passed in the header, it will return an error. This validation can also be performed on the client side by comparing the ETag ColdStack response with the precomputed one MD5.

Request

PUT /{bucket}/{key} HTTP/1.1
Content-Type: ContentType
Content-Length: ContentLength
Content-Disposition: ContentDisposition

Path parameters

Parameter	Description
bucket	Bucket name.
key	Object key. The identifier under which the object will be stored in ColdStack.

Headings

Use the required common headers in the request .

Additionally, you can use the headings listed in the table below.

Heading	Description
x-amz-meta-*	Custom object metadata. All headers starting with x-amz-meta-ColdStack are treated as custom headers, they are not processed and stored in the form in which they are transmitted. The total size of custom headers must not exceed 2KB. The size of the user data is defined as the length of the UTF-8 encoded string. The size takes into account both the names of the headings and their values.
x-amz-storage-class	Object storage class. Can have any of the following values: - STANDARDto load an object into the standard storage. - COLD, STANDARD_IAand NEARLINEto load the object into cold storage. If the header is not specified, then the object is saved in the storage set in the bucket settings.
x-amz-server-side-encryption	The default encryption algorithm for encrypting new objects.
x-amz-server-side-encryption-aws-kms-key-id	The default KMS key identifier used to encrypt new objects.

Using the headers listed below, you can set the ACL for the loaded object.

Heading	Description
x-amz-acl	Sets a predefined ACL for an object.
x-amz-grant-read	Sets the recipient to read permission on the object.
x-amz-grant-read-acp	Sets the recipient to read the object's ACL.
x-amz-grant-write-acp	Sets the recipient to write access to the object's ACL.
x-amz-grant-full-control	Sets the access permission recipient: READ, WRITE, READ_ACP, WRITE_ACPobject.

The value for headers x-amz-grant-*is a comma-separated list of recipients. Each accessor is identified by a view structure <тип получателя доступа>:<идентификатор получателя доступа>. ColdStack supports the following recipient types:

• id - access recipient is a cloud user.

• uri - access recipient - system group.

Example:

x-amz-grant-read: uri="http://acs.amazonaws.com/groups/s3/AuthenticatedUsers"

Answer

Headings

The response can only contain general headers .

Answer codes

For a list of possible answers, see the Answers section .