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https://github.com/facebookarchive/flux

Application Architecture for Building User Interfaces
https://github.com/facebookarchive/flux

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Application Architecture for Building User Interfaces

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## ⚠️ The Flux project has been archived and no further changes will be made. We recommend using more sophisticated alternatives like [Redux](http://redux.js.org/), [MobX](https://mobx.js.org/), [Recoil](https://recoiljs.org/), [Zustand](https://github.com/pmndrs/zustand), or [Jotai](https://github.com/pmndrs/jotai).


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Flux



An application architecture for React utilizing a unidirectional data flow.


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Current npm package version.


## Getting Started

Start by looking through the [guides and examples](./examples) on Github. For more resources and API docs check out [facebook.github.io/flux](https://facebookarchive.github.io/flux).

## How Flux works

For more information on how Flux works check out the [Flux Concepts](./examples/flux-concepts) guide, or the [In Depth Overview](https://facebookarchive.github.io/flux/docs/in-depth-overview).

## Requirements

Flux is more of a pattern than a framework, and does not have any hard dependencies. However, we often use [EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter) as a basis for `Stores` and [React](https://github.com/facebook/react) for our `Views`. The one piece of Flux not readily available elsewhere is the `Dispatcher`. This module, along with some other utilities, is available here to complete your Flux toolbox.

## Installing Flux

Flux is available as a [npm module](https://www.npmjs.org/package/flux), so you can add it to your package.json file or run `npm install flux`. The dispatcher will be available as `Flux.Dispatcher` and can be required like this:

```javascript
const Dispatcher = require('flux').Dispatcher;
```

Take a look at the [dispatcher API and some examples](https://facebookarchive.github.io/flux/docs/dispatcher).

## Flux Utils

We have also provided some basic utility classes to help get you started with Flux. These base classes are a solid foundation for a simple Flux application, but they are **not** a feature-complete framework that will handle all use cases. There are many other great Flux frameworks out there if these utilities do not fulfill your needs.

```js
import {ReduceStore} from 'flux/utils';

class CounterStore extends ReduceStore {
getInitialState(): number {
return 0;
}

reduce(state: number, action: Object): number {
switch (action.type) {
case 'increment':
return state + 1;

case 'square':
return state * state;

default:
return state;
}
}
}
```

Check out the [examples](./examples) and [documentation](https://facebookarchive.github.io/flux/docs/flux-utils) for more information.

## Building Flux from a Cloned Repo

Clone the repo and navigate into the resulting `flux` directory. Then run `npm install`.

This will run [Gulp](https://gulpjs.com/)-based build tasks automatically and produce the file Flux.js, which you can then require as a module.

You could then require the Dispatcher like so:

```javascript
const Dispatcher = require('path/to/this/directory/Flux').Dispatcher;
```

The build process also produces de-sugared versions of the `Dispatcher` and `invariant` modules in a `lib` directory, and you can require those modules directly, copying them into whatever directory is most convenient for you. The `flux-todomvc` and `flux-chat` example applications both do this.

## License

Flux is BSD-licensed. We also provide an additional patent grant.