react-context-connector
v0.1.4
Published
React HOC to the new Context API to keep the use as simple as React-Redux connect HOC.
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react-context-connector
React HOC to the new Context API to keep the use as simple as React-Redux connect HOC.
Usage
connectContext(ContextProvider, mapContextToProps)
Generates a HOC to wrap a component with context values in props.
Parameters
ContextProvider: Object
, an Object with Consumer
attribute, like the Context object or a Custom Provider
mapContextToProps: function
, a functiona that receives the context from Context.Consumer
and returns a object to be used as props for the wrapped component.
Returns: Component
, A HOC which pass context state into props to child component.
Example
Create your Context Provider
const CounterContext = React.createContext();
class CounterProvider extends Component {
state = {
count: 0,
incrementCount: () => {
...
},
decrementCount: () => {
...
},
}
render() {
return (
<CounterContext.Provider value={this.state}>
{this.props.children}
</CounterContext.Provider>
);
}
}
CounterProvider.Consumer = CounterContext.Consumer;
Create your component and connect it to the Context
import connectContext from 'react-context-connector';
import CounterProvider from './CounterProvider';
const CounterDisplay = ({ value }) => (
<div>
Counter: {value}
</div>
);
CounterDisplay.propTypes = {
value: PropTypes.number,
};
// map context state and functions to component props
const mapContextToProps = context => ({
value: context.count,
});
const CounterDisplayWithContext = connectContext(CounterProvider,mapContextToProps)(CounterDisplay);
export default CounterDisplayWithContext;
Create your App and wrap with the Context Provider
const App = () => (
<CounterProvider>
<div>
<CounterDisplay />
<CounterButtons />
</div>
</CounterProvider>
);
render(<App />, document.getElementById("root"));
Check the example folder for more details.