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https://github.com/fabiospampinato/unstated-connect2

Connect containers to components, without sacrificing performance.
https://github.com/fabiospampinato/unstated-connect2

connect hoc performance react unstated

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Connect containers to components, without sacrificing performance.

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# Unstated Connect2

Connect containers to components, without sacrificing performance.

This library basically combines together [react-selectr](https://github.com/fabiospampinato/react-selectr), [react-should-component-update](https://github.com/fabiospampinato/react-should-component-update) and [unstated-with-containers](https://github.com/fabiospampinato/unstated-with-containers) together.

## Install

```sh
npm install --save unstated-connect2
```

## API

```ts
connect ({
container?: UnstatedContainer, // Single unstated container to connect
containers?: UnstatedContainer[], // Array of unstated containers to connect
shouldComponentUpdate?: rule | rule[], // Rule/rules to pass to `react-should-component-update`
selector?: Function, // Selector function to pass to `react-selectr`
pure?: false // Option to pass to `react-selectr`
})
```

## Usage

```ts
import connect from 'unstated-connect2';
import MyContainer from './my_container';
import MyOtherContainer from './my_other_container';
import MyComponent from './my_component';

// The following code will:
// 1. Pass the value of `container` to `unstated-with-containers`, ensuring it gets connected
// 2. Pass the value of `shouldComponentUpdate` to `react-should-component-update`, ensuring unnecessary selections and re-renders are reduced
// 3. Pass the value of `selector` to `react-selectr`, ensuring MyComponent will only receive the selected props, minimizing unecessary re-renders

connect ({
container: MyContainer,
shouldComponentUpdate: 'path.to.relevant.prop',
selector: ({ container }) => {
foo: container.foo,
bar: container.getBar ()
}
})( MyComponent )

// If all you need is subscribing to one or multiple containers, you can simply write:

connect ( MyContainer )( MyComponent );
connect ( [MyContainer, MyOtherContainer] )( MyComponent );
```

## Related

- **[unstated-with-containers](https://github.com/fabiospampinato/unstated-with-containers)**: Higher-Order Component for subscribing to containers.
- **[unstated-hmr](https://github.com/fabiospampinato/unstated-hmr)**: Preserve containers' states across Hot-Module-Replacements.
- **[unstated-compose](https://github.com/fabiospampinato/unstated-compose)**: Compose multiple containers into one.
- **[unstated-compose-suspense](https://github.com/fabiospampinato/unstated-compose-suspense)**: Add suspend/unsuspend support to `unstated-compose`.
- **[unstated-compose-suspense-middleware](https://github.com/fabiospampinato/unstated-compose-suspense-middleware)**: Add middlewares support to `unstated-compose-suspense`.
- **[unstated-suspense](https://github.com/fabiospampinato/unstated-suspense)**: Suspend/unsuspend updates propagation from your containers.
- **[unstated-suspense-middleware](https://github.com/fabiospampinato/unstated-suspense-middleware)**: Add middlewares support to `unstated-suspense`.

## License

MIT © Fabio Spampinato