You can modify buckets by posting the same parameters used to create the bucket to the bucket's URI.
Do not omit a parameter for a bucket property in your request, even if you are not modifying the property. This may be equivalent to not setting it in many cases. We recommend you do a request to get current bucket settings, make modifications as needed and then make your POST request to the bucket URI. You cannot change the name of a bucket via the REST API, or any other means besides removing the bucket and creating a new one witht he new name.