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A comment on Ask HN: How would you implement an Undo functionality on front end and back end?. Parent comment

Re:Ask HN: How would you implement an Undo functionality on ... by nadima on Sunday June 07, 2020 @04:35PM (#23450567)
Thanks for these resources. It looks like all of them are for frontend-only cases though?
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Re:Ask HN: How would you implement an Undo functionality on ... by bradwood on Sunday June 07, 2020 @06:21PM (#23451449)
On the server-side you probably want some kind of transaction log or event sourcing / CQRS architecture...

The idea being that you don't write directly to a persistence layer (database) but rather that you trigger events onto some kind of queue. These events then persist in the queue for a time and then can be asynchronously acted upon. This allows for a number of interesting patterns, including undo, replay, etc.

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