# redux-subreducer
> Middleware for working with react-redux
Latest version **1.0.6-alpha2** (published 2018-04-22) · MIT license · 0 weekly downloads
> **Deprecated.** This package is deprecated.
## Install
```sh
npm install redux-subreducer
pnpm add redux-subreducer
yarn add redux-subreducer
bun add redux-subreducer
```
## Health
**Score 10/100 (F)** — status: deprecated.
Negative: deprecated.
## Facts
| | |
|---|---|
| Version | 1.0.6-alpha2 |
| Published | 2018-04-22 |
| First published | 2018-04-06 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 3 |
| Unpacked size | 82.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 0 |
| Author | Alexey Potsetsuev |
| Maintainers | wroud |
| Keywords | react, react-redux, redux, middleware, typescript |
## Links
- npm: https://www.npmjs.com/package/redux-subreducer
- Repository: https://github.com/Wroud/redux-subreducer
- Homepage: https://github.com/Wroud/redux-subreducer#readme
- Issues: https://github.com/Wroud/redux-subreducer/issues
- npm.io page: https://npm.io/package/redux-subreducer
## Dependencies (3)
- [react](https://npm.io/package/react.md) ^15.0.0-0 || ^16.0.0-0
- [redux](https://npm.io/package/redux.md) ^2.0.0 || ^3.0.0 || ^4.0.0-0
- [react-redux](https://npm.io/package/react-redux.md) ^5.0.0
## Alternatives
- [mobx-react](https://npm.io/package/mobx-react.md) — 2.8M weekly downloads
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## Recent versions
- 1.0.6-alpha2 (latest) — 2018-04-22
- 1.0.5-alpha2 (alpha) — 2018-04-09
- 1.0.6-alpha — 2018-04-22
- 1.0.5-alpha9 — 2018-04-19
- 1.0.5-alpha8 — 2018-04-19
- 1.0.5-alpha7 — 2018-04-16
- 1.0.5-alpha6 — 2018-04-10
- 1.0.5-alpha5 — 2018-04-10
- 1.0.5-alpha4 — 2018-04-10
- 1.0.5-alpha3 — 2018-04-10
- 1.0.5-alpha — 2018-04-09
- 1.0.5 — 2018-04-08
- 1.0.4-alpha3 — 2018-04-06
- 1.0.4-alpha2 — 2018-04-06
- 1.0.4-alpha — 2018-04-06
- … 5 more at https://npm.io/package/redux-subreducer/versions
## README
# redux-subreducer
Redux-Subreducer can do:
1. deep state tree control
2. component local state control
Also provides detailed logging.
More completed example:
1. https://github.com/Wroud/ScheduleReact
[](https://travis-ci.org/Wroud/redux-subreducer)
[](https://github.com/Wroud/redux-subreducer/issues)
[](https://github.com/Wroud/redux-subreducer/blob/master/LICENSE)
[](https://www.npmjs.com/package/redux-subreducer)
[](https://www.npmjs.com/package/redux-subreducer)
## Install
```
npm install --save redux-subreducer react react-redux
```
## Documentation
* [API Reference](docs/README.md)
* [API Reference TypeScript](https://wroud.github.io/redux-subreducer/dist/docs/)
## Connect sub-reducer to redux
**1. Create sub reducer for `counter`**
```javascript
import { createAction, createRootReducer, LocalListener } from "redux-subreducer";
export const actions = {
increment: createAction("Increment"),
decrement: createAction("Decrement"),
};
const initalState = 0;
export const counterReducer =
createSubReducer("counter", initalState)
.on(actions.increment, state => state + 1)
.on(actions.decrement, state => state - 1);
```
**2. Then create main reducer**
```javascript
import { routerReducer } from "react-router-redux";
const appInitalState = {};
export const appReducer =
createRootReducer(appInitalState)
.join(counterReducer)
.joinReducer("routing", routerReducer) // also you can connect classic reducers
.joinListener("listener", LocalListener); // or actions listener, its same reducer but not returning state
```
**3. Now create redux store**
```javascript
import { createStore } from "redux";
const store = createStore(appReducer.reducer, appInitalState);
/*
{
counter: 0,
routing: {...}
}
*/
```
**4. Dispatch actions!**
```javascript
store.dispatch(actions.increment);
/*
{
counter: 1,
routing: {...}
}
*/
store.dispatch(actions.decrement);
/*
{
counter: 0,
routing: {...}
}
*/
```
## Connect component local store to `LocalReducer`
Since we connected `LocalListener` (step 2) we can connect React Component local store to `LocalReducer`
**1. Lets create one more action**
```javascript
export const switchDrawerAction = createAction("Switch Drawer");
```
**Layout.jsx**
```javascript
export class LayoutClass extends React.Component {
render() {
return
(
);
}
}
function mapDispatchToProps(dispatch) {
return {
switchDrawer: () => dispatch(switchDrawerAction)
}
}
export const Layout = connect(null, mapDispatchToProps)(LayoutClass);
```
**DrawerWraper.jsx**
```javascript
const initState = {
open: true,
};
export class DrawerWraperClass extends React.Component {
this.state = initState;
render() {
return (
...
);
}
}
const switchDrawer = (props, prevState) => ({ open: !prevState.open });
const stateReducer = reducer => reducer
.on(switchDrawerAction, switchDrawer);
export const DrawerWrapper = connectState(
initState,
stateReducer,
"drawer", // optional
)(DrawerWraperClass);
```
**2. It works.**
---
_Source: https://npm.io/package/redux-subreducer · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._