Show HN: Redux-undo – Simple undo/redo functionality for Redux state containers (opens in new tab)

That's an interesting question. The simplest way would be listening to state changes in the store and then syncing the state with the server. Since undos/redos are normal redux actions, you can just handle them like any other action in redux.

For example, in an application I wrote, I do `store.subscribe(autoSaveFunction)` which will automatically save all changes to the state. Of course, you can also only store parts of the state, etc, but this is more redux related than redux-undo related.

I haven't tested it yet, but it should. The magic behind redux-undo is a reducer enhancer (higher order reducer) - it returns a function that processes undo/redo and then (if appropriate) calls your reducer. If your reducer uses immutable data-structures, redux-undo will simply store your data (immutable or not) in the history.

redux-undo itself doesn't use immutable data structures, though (for dependency reasons). However, I do make sure not to change any data directly. (you know, the usual redux reducer guidelines)