Update record labels (I/O API)

This endpoint updates labels for multiple records across multiple entries using Batch Protocol v2 header naming and the label delta format. See the Batch protocol v2 section for details.

PATCH

/api/v1/io/:bucket_name/update

Update labels for multiple records across entries

Per-record errors

If a record cannot be updated, the response includes an error header for that record:

x-reduct-error-<ENTRY-INDEX>-<TIME-DELTA-uS>: <STATUS_CODE>,<ERROR_MESSAGE>

Label delta format

Label delta updates only the mentioned labels. Remove a label by sending an empty value (k=). Unmentioned labels keep their previous value for the entry.

If x-reduct-labels is provided, you can use numeric indexes in the delta (for example 0=one,1=,c=3).