Better api to persist state

[AndreiTS]

I would like to request a built-in, officially supported way to persist state in Valtio, similar to Zustand's persist middleware. The current approach requires manually subscribing to state changes and handling serialization, which is cumbersome and error-prone.

Having an officially maintained solution would improve developer experience and prevent reliance on outdated third-party packages (valtio-persist). Is there any plan to introduce this in future releases?

[overthemike]

Not currently, no. I don't foresee this being added to the core as an official part of valtio, as this goes against the design principles chosen (@dai-shi correct me if I'm wrong). This might merit a discussion on providing a more stable method of adding functionality, however. Middleware, plugins, etc.

That being said, I'll look into making a new persist library that can be used with the current version of valtio.

@dai-shi Thoughts?

[dai-shi]

outdated third-party packages (valtio-persist)

That was my concern too.

I'll look into making a new persist library

Yes, we should have one in https://github.com/valtiojs and maintain it. Please go for it.

[overthemike]

That being said, I'll look into making a new persist library that can be used with the current version of valtio.

https://github.com/valtiojs/valtio-persist @Noitidart was generous enough to donate the valtio-persist library name to the valtiojs org and it has been rewritten from the ground up. It works with the latest version of valtio.

[Noitidart]

Thanks to otm for the incredibly great work with limited time to revive it better than it was!