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

Re:Ask HN: How would you implement an Undo functionality on ... by throwaway888abc on Sunday June 07, 2020 @03:16PM (#23449874)

Some pointers

https://redux.js.org/recipes/implementing-undo-history

https://github.com/anthonygore/vuex-undo-redo

https://medium.com/better-programming/utilizing-the-command-...

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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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