redux-xstate-poc VS redux-toolkit

Very doable, but not the most ideal syntax, since `createSlice` is focused on "here's an action / thing that happened, here's the reducer that handles that".

On the flip side, you can also use XState state machines as Redux reducers. A state machine is, after all, a function that takes a current state value + some event, and returns a new state.... exactly the same as a reducer function!

David and I have been saying for a while that we'd like to have a more official integration between XState and Redux. A while back, Matt Pocock put together an proof of concept for what a `createXStateSlice` might look like [1]. I actually sat down with David a couple weeks ago and we did some further design discussions about the possibility of using the `@xstate/fsm` package (a smaller version of XState's logic) as a starting point, and generating RTK actions based on that. No code yet, but it seems feasible.

[0] https://dev.to/davidkpiano/redux-is-half-of-a-pattern-1-2-1h...

[1] https://github.com/mattpocock/redux-xstate-poc

Fun fact: one of the XState devs did a proof-of-concept showing how to use XState state machines as Redux reducers and integrate the side effects handling as a middleware:

https://github.com/mattpocock/redux-xstate-poc

We'd like to work together to turn that into a more official integration sometime soon.

One of the XState devs recently posted https://github.com/mattpocock/redux-xstate-poc , an example of how you can integrate XState into a Redux app for use as a Redux slice reducer + side effects middleware

In my example I am using Redux Toolkit and I got a prompt for actions to login and logout the user. If I need more functions, I can simply start typing the name, and Copilot provides the completion. For instance, in the example, I'm adding a function to update the user. And of course at the end of the file it suggests the exports.

Check out the official documentation.

Redux Toolkit 2.0

Redux Toolkit 2.0 is almost here! Hopefully shipping by this weekend :) Migration page

I am _thrilled_ to announce that:

Redux Toolkit 2.0 is LIVE!!!

- https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0

This major version has new features, faster perf, smaller bundle size, and removes deprecated options.

It's accompanied by majors for all our Redux family packages

## RTK 2.0:

- a new `combineSlices` method for lazy-loading reducers - Updates to `createSlice` to include a `selectors` field and allow defining thunks inside

- Immer 10 w/ faster updates

- Removal of deprecated options

See the migration guide:

- https://redux.js.org/usage/migrations/migrating-rtk-2

All of the Redux libraries now have modernized packaging with full ESM/CJS compat. They also ship modern JS (no transpiling for IE11), which means smaller bundle sizes.

We've also done byte-shaving work to shrink the bundles (extracting error messages, de-duping imports)

## Redux core 5.0:

- The TS conversion we did in 2019!

- Action types _must_ be strings

- `UnknownAction` as the default action type

- Better preloaded state types

- Internal subscription improvements

- Still marks `createStore` as deprecated!

- https://github.com/reduxjs/redux/releases/tag/v5.0.0

## React-Redux 9.0:

- *Now requires React 18 and RTK 2.0 / Redux 5.0*

Oh hey, that's my post!

(yes I spend too much time refreshing HN :) )

FWIW I did end up with a packaging combination that seems to work sufficiently. I never did fix the "FalseCJS" issue that `are-the-types-wrong` is detecting. I played with double-emitting TS typedefs, and the `tsup` tool _does_ actually have support for that now (added by Andrew Branch from the TS team). So it might be more feasible now. But ultimately I decided I was tired of messing with packaging setup and that what I've got is good enough. (hopefully)

We're actually about to launch Redux Toolkit 2.0 and Redux 5.0 this week, assuming the last couple pieces come together. Here's the latest RCs - you can see the current `package.json` files in there:

- https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0...

- https://github.com/reduxjs/redux/releases/tag/v5.0.0-rc.1

However, Redux, or pure Redux to be specific, can be quite verbose and boilerplate-heavy. It requires a significantly lengthy setup, which is where Redux Toolkit comes in handy, offering a simplified and more efficient way to set up and manage state in your React applications.

State manager is a tool or library that helps manage the state of an application. It provides a centralized store or container for storing and managing data that can be accessed and updated by different components in the application. A state manager solves several problems. Firstly, it is a good practice to separate data and the logic related to it from components. Secondly, when using local state and passing it between components, the code can become convoluted due to the potential for deep nesting of components. By having a global store, we can access and modify data from any component. Alongside React Context, Redux or MobX are commonly used as state management libraries. Learn more Learn more