Client applications use the HTTP PUT method to update data object user metadata in the CDMI namespace.
The following considerations apply with the PUT method:
- The StorageGRID Webscale system supports adding or updating only all user metadata for a data object. It does not support adding or updating an individual user metadata item (using the URI syntax ?metadata:<metadataname>).
- Updating other fields (for example, value or mimetype) using the PUT method is not supported.