0011779: merchant does not allow easily querying for order changes of $N orders

ID	Project	Category	View Status	Date Submitted	Last Update
0011779	Taler	merchant backend	public	2026-09-07 11:32	2026-09-07 11:35

Reporter	Florian Dold	Assigned To
Priority	normal	Severity	minor	Reproducibility	have not tried
Status	new	Resolution	open
Target Version	1.8

Summary	0011779: merchant does not allow easily querying for order changes of $N orders
Description	Let's say the merchant portal webui is displaying the latest 20 transactions. Via long-polling, we can easily find out about new transactions. However, we can't find out about changed transactions. Possible fixes are: * Allow long-polling with an ETag (over the returned transactions list), so that changes result in long-poll returns * This still requires two in-flight queries, one for new transactions and one for changes on the existing list that is displayed * Introduce a more general notification / change notification mechanism * General but potentially complex and/or expensive * Just do traditional polling and re-request the 20 transactions every, say, 10 seconds.
Tags	No tags attached.

Date Modified	Username	Field	Change
2026-09-07 11:32	Florian Dold	New Issue
2026-09-07 11:32	Florian Dold	Relationship added	related to 0011691
2026-09-07 11:33	Florian Dold	Summary	merchant does not allow easily querying for order changes => merchant does not allow easily querying for order changes of $N orders
2026-09-07 11:35	Florian Dold	Description Updated