[Recompose] Create Stream Behaviors to Push Props in React Components with mapPropsStream

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Rather than using Components to push streams into other Components, mapPropsStream allows you to create functions that can wrap components to create shareable behaviors across components.

 

Using componentFromStream:

import React from "react"import { render } from "react-dom"import { Observable } from "rxjs"import config from "recompose/rxjsObservableConfig"import {  setObservableConfig,  componentFromStream,  createEventHandler,  mapPropsStream} from "recompose"setObservableConfig(config)//#endregionconst Counter = props => <h1>{props.count}</h1>const CounterWithInterval = componentFromStream(  props$ => props$.switchMap(    props => Observable.interval(1000),    (props, count) => ({count, ...props})  )  .map(Counter))const App = () => (  <div>    <CounterWithInterval />  </div>)render(<App />, document.getElementById("root"))

 

MapPropsStream allows you to create functions that will decorate your component, rather than creating a component itself. I‘m going to create an interval here using MapPropsStream.

A mapProposStream version can be like this:

import React from "react"import { render } from "react-dom"import { Observable } from "rxjs"import config from "recompose/rxjsObservableConfig"import {  setObservableConfig,  componentFromStream,  createEventHandler,  mapPropsStream} from "recompose"setObservableConfig(config)//#endregionconst Counter = props => <h1>{props.count}</h1>const interval = mapPropsStream(props$ => props$.switchMap(  props => Observable.interval(1000),  (props, count) => ({ count, ...props })))const CounterWithInterval = interval(Counter)const App = () => (  <div>    <CounterWithInterval />  </div>)render(<App />, document.getElementById("root"))

 

As you can see, we take the hightlighted part as own function, wrapped with ‘mapPropsStream‘. 

[Recompose] Create Stream Behaviors to Push Props in React Components with mapPropsStream

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