To change an object's storage class with the XML API, you must overwrite the existing object (creating a new object version). Make a PUT request that is scoped to the object. The request should contain the x-goog-storage-class reference header, as well as the object in the request body. Note that based on the location of the bucket in which the object resides, there are restrictions on the storage class you can set for the object.
To learn more about per-object storage classes in general, see the associated concept page.
In addition to common request headers, the following can be used.
||A valid storage class.||No|
Request body elements
The request body contains the object data.
The following syntax applies to PUT Object requests that use the
PUT /<object> HTTP/1.1 Host: <bucket>.storage.googleapis.com Date: <date> Content-Length: <request body length> Content-Type: <MIME type> Authorization: <authentication string> x-goog-storage-class: <storage class>
The request can return a variety of response headers depending on the request headers you use.
Response body elements
The response does not include an XML document in the response body.