Create a Live Highway Traffic Rotator using JavaScript – RSS / XML
In this video tutorial, you are going to learn how to manipulate XML data using JavaScript. I tried to explain every step of creating this RSS rotator. If you have any questions or ideas I would love to hear from you!
Html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>RSS Live Traffic Rotator</title>
<link rel="stylesheet" href="/css/styles.css">
</head>
<body>
<div class="rss-rotator">
<div class="title">Traffic Rotator</div>
<ul id="item"></ul>
</div>
<script src="js/script.js"></script>
</body>
</html>SCSS
@import url('https://fonts.googleapis.com/css?family=Quicksand:400,700&display=swap');
$primary-color: #396362;
$secondary-color: #4b8e8d;
body {
margin: 0;
display: flex;
height: 100vh;
font-family: 'Quicksand', sans-serif;
background-image: url("../img/bg.jpg");
background-size: cover;
background-position: 0px -100px;
}
div.rss-rotator {
width: 100%;
align-self: flex-end;
background-color: #fff;
.title {
padding: 20px;
background-color: $primary-color;
color: #fff;
}
ul {
list-style: none;
height: 300px;
overflow: auto;
margin: 0;
padding: 0;
li {
padding: 0 20px;
border-bottom: 1px solid #ccc;
}
}
}JavaScript
loadXMLFeed = () => {
const url = "http://m.highwaysengland.co.uk/feeds/rss/UnplannedEvents.xml";
fetch(url)
.then(response=>response.text())
.then(data=> {
let parser = new DOMParser();
let xml = parser.parseFromString(data, "application/xml");
displayTrafficList(xml);
});
}
document.addEventListener("DOMContentLoaded", loadXMLFeed);
function displayTrafficList(x) {
console.log(x);
let list = document.getElementById('item');
let item = x.getElementsByTagName('item');
let itemNum = x.getElementsByTagName('item').length;
if(itemNum === 0){
list.innerHTML = "<li><h3>No Planned Roadworks...</h3></li>"
setTimeout(function(){
loadXMLFeed();
console.log("No new data...");
}, 7000);
}
else {
for(let i=0; i<itemNum; i++) {
let li = document.createElement('li');
li.className = "listItem";
li.innerHTML =
`
<h3>${item[i].getElementsByTagName('title')[0].innerHTML}</h3>
<p>${item[i].getElementsByTagName('description')[0].innerHTML}</p>
`;
list.appendChild(li);
}
}
setTimeout(function(){
startAnimation(item);
}, 7000);
}
startAnimation = (x) => {
let listItem = document.getElementsByClassName('listItem');
for(let i=0; i<x.length; i++) {
setTimeout(function(){
listItem[0].remove();
if(i == x.length -1) {
loadXMLFeed();
console.log("Loading new data...");
}
}, i*3000);
}
}Author
Hi! I’m Raddy. I am a web developer, often making YouTube Videos, Blog Posts and side projects. Enquiries: [email protected]
