📄️ X-FTH-Error
(Optional) Contains the error message returned by the server. If empty or not present, that signals that the upload request has been completed successfully.
📄️ X-FileID
(Optional) Contains the ID of the file created/overwritten on the server as a result of the upload request.
📄️ X-FolderID
(Optional) Has different meanings, depending on the upload action:
📄️ X-FileSystemLogOpID
Contains the ID of the current system log operation associated with the overall upload operation.
📄️ X-DropBoxMessagePublicID
(Optional) Only present for requests that are part of an external upload operation.