Promise.all test bench

Promise all rejection

by Stephane de Luca

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.done {
  color: rgba(0, 0, 0, 0.3);
  text-decoration: line-through;
}

input {
  margin-right: 5px;
}

React

/*
class TodoApp extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
    	items: [
      	{ text: "Learn JavaScript", done: false },
        { text: "Learn React", done: false },
        { text: "Play around in JSFiddle", done: true },
        { text: "Build something awesome", done: true }
      ]
    }
  }
  
  render() {
    return (
      <div>
        <h2>Todos: </h2>
        <ol>
        {this.state.items.map(item => (
          <li key={item.id}>
            <label>
              <input type="checkbox" disabled readOnly checked={item.done} /> 
              <span className={item.done ? "done" : ""}>{item.text}</span>
            </label>
          </li>
        ))}
        </ol>
      </div>
    )
  }
}

ReactDOM.render(<TodoApp />, document.querySelector("#app"))

*/
/// Run FP Code
testBench(0)

// Voila la méthode Promise pour gérer les appelles d’API



// A  promise that resolves after a given time and reject when given 2000
const timeOut = (url) => {
	const duration = 2000

  return new Promise((resolve, reject) => {
  
	  const toBeRejected = url.substring('soc')

  	console.log(`~> to be rejected? ${toBeRejected} in ${duration/1000}s: ${url}…`)
  
    setTimeout(() => {  
    
      if (toBeRejected) {
        reject(`Rejected ${url}`)
      } else {
        resolve(`Completed ${url}`)
      }
    }, duration)
  })
}




const getFetchAPI = (url) => {
	return timeOut(url)
}


const testBench = (gender) => {
	const installation = '12'
	const select = '1'

	//React.useEffect(() => {


 
      var promises = []
  
      if (gender === 0) {
        promises.push(getFetchAPI(`victron/stats/summary?installationId=${installation}&periodId=${select}`))
        promises.push(getFetchAPI(`victron/stats/soc?installationId=${installation}&periodId=${select}`))
      }
      else if (gender === 1) {
        promises.push(getFetchAPI(`victron/stats/consumption?installationId=${installation}&periodId=${select}`))
       ...