Feature #18623: Ensure Etag can be used and honor If-Match header in updates - Arvados

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Feature #18623

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Ensure Etag can be used and honor If-Match header in updates

Added by Peter Amstutz almost 3 years ago. Updated 9 months ago.

Status:

New

Priority:

Normal

Assigned To:

Category:

API

Target version:

Future

Story points:

Release:

Postponed

Release relationship:

Auto

Description

For collections (and possibly other record updates) we would like to be able to send updates with "If-Match" header to confirm that the version we are updating is the same version we read. If the If-Match fails (the etag of the record has changed) then the update is rejected and the client must re-read the record and retry.

Consult the HTTP 1.1 RFCs for rules about etag and If-Match (such as the appropriate error code).

See also https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-Match