Precondition required
Canonical type:
https://learn.peios.org/wispist/problems/precondition-required/
Status: 428 Precondition Required. Browser code: precondition_required.
Wispist does not offer unconditional last-write-wins mutation. A selected-ID create requires If-None-Match: *. Replacing or deleting an existing document requires If-Match with the quoted observed revision.
Read the current document and use replace, update, or delete with that complete envelope. If the supplied revision is no longer current, the next response is Revision conflict.