Posted in javascript
11767
6:20 am, August 31, 2018
 

json loop load elements

Loading json content from a url can be tricky, there are a few different things you need to watch out for. Here is some examples using an example json feed.

Load the feed

this will load the feed and console log all the data, so you can see what it is loading.

Javascript

$.getJSON( "https://kruxor.com/code/js/examples/abgt-example.json", function( data ) { console.log(data); });

Here is an example of the json feed, so we can see the elements we need to access:

JSON

{
  "@attributes": {
    "version": "2.0"
  },
  "channel": {
    "title": "Above & Beyond: Group Therapy",
    "link": "http:\/\/static.aboveandbeyond.nu\/grouptherapy\/podcast.xml",
    "description": "Group Therapy is the weekly radio show from Above & Beyond also known as ABGT",
    "language": "en",
    "copyright": "Above & Beyond",
    "lastBuildDate": "Fri, 07 Jul 2017 11:28:38 +0000",
    "category": "Music",
    "item": [{
          "title": "#239 Group Therapy Radio with Above & Beyond",
          "link": "http:\/\/www.aboveandbeyond.nu\/radio\/abgt239",
          "description": "Episode #239 \/ Ruben de Ronde x Rodg Guest Mix",
          "author": "Above & Beyond",
          "enclosure": {
            "@attributes": {
              "url": "http:\/\/traffic.libsyn.com\/anjunabeats\/ABGT239_LiveShow070717.m4a",
              "length": "115205480",
              "type": "audio\/mpeg"
            }
          },
          "guid": "abgt239",
          "pubDate": "Fri, 07 Jul 2017 08:10:00 +0000"
        }

Now we need to loop through each item in the channel to display all the results.

$.each( data.channel.item, function( key, val ) {

key is not really used in this loop val is where all the data is

you can access each item using: val.title to grab the title, etc. if you want to show any of the main data you can use. data.element

in the loop use: val.title
out of the loop use: data.title

if you have some tricky data in like the @attributes element, you might need to access it using the following method. this is how to access the url in the @attributes.

source_url = val['enclosure']['@attributes']['url'];

Note: you cant access the @attributes with the normal method, as it has invalid characters. So val.enclosure.@attributes.url will return an error.

Now we can put it all together to show the content from this json feed.

here is a function that will load the json and display the content in a #content div

function load_pod() {
	$("#content").html("Loading...");

	$.getJSON( "https://kruxor.com/code/js/examples/abgt-example.json", function( data ) {
	  var items = [];
	  var x = "";

	  console.log(data);
	  console.log(data.channel.category);
		// console.log(data.articles[0].description); // this works to extract the 1st item. 

		x = x + "<div class='details'>";
		x = x + "<h1>"+ data.channel.title +"</h1>";
		x = x + "<p>"+ data.channel.description +"</p>";
		x = x + "<p>Category: "+ data.channel.category +"</p>";
		x = x + "</div>";

	  $.each( data.channel.item, function( key, val ) {

	  	source = val['enclosure']['@attributes']['url'];
	  	audio = "<audio controls class='audio' preload='none'><source src='"+source+"' type='audio/mpeg'></audio>";

	  	x = x + "<div class='news-item'>";
	  	x = x + "<div class='news-title'><a href='"+val.link+"' target='_blank'>" + val.title + "</a></div>";
	  	x = x + audio;
	  	x = x + "<div class='description'>" + val.description + "</div>";
	  	x = x + "<div class='date-time'>" + val.pubDate + "</div>";
	  	x = x + "</div>";

	  });

	  $("#content").html(x + "<p><a href='#' target='_blank'>Source</a></p>");

	});	
}

Now we just need a div tag with content id.

<div id="content">...</div>

And for this one you need to include jquery as well.

Here is a working example:

This is a good overview of accessing json elements. stackoverflow

View Statistics
This Week
408
This Month
1320
This Year
3933

No Items Found.

Add Comment
Type in a Nick Name here
 
Other Items in javascript
get current year in javascript find a text string and replace it in javascript check if an item id exists in javascript Twitter Post Fetcher v18.0.4 - javascript twitter feed fetcher Are you sure you want to navigate away from this page? #JavaScript warning floating message box on bottom right of screen with close button share to twitter javascript button function open a new window share to linked in current url button with javascript Get current URL and add a share to facebook share button with it encode url with javascript Twitter Post Fetcher Script Javascript Objects Notes javascript add class to element update value of element using javascript javascript attach a click event to an id not using jquery console dir usage how to write a javascript string over multiple lines best way to write html into an existing page javascript Uncaught TypeError: Cannot set properties of null (setting 'onclick') check url hash using javascript submit form with javascript Converting PHP to Javascript for State Extraction by numeric value Australian State Names get the value from a textarea element javascript get content from element convert characters to entities using javascript replace Auto Create HTML Code Snippets loop to arr.length or array length get tomorrows date with javascript get yesterdays date with javascript add new random image with button Create Strings using Template Literals Darkmode JS - Add darkmode to your site with one script Use destructuring assignment within the argument to the function half to send only max and min inside the function. Using Destructuring and the Rest Parameter to Reassign Array Elements Use destructuring assignment to swap the values of a and b Sweet Alert 2 Methods and Examples How to Assign the Value of One Variable to Another in Javascript Slick Slider Carousel with Custom Next and Prev Buttons Console Tips and Tricks javascript random string to put on url for cache javascript try catch example function load json data url or api with javascript log the console log output to a div javascript basic test array and loop how to join an array in javascript using the join method show the current date in javascript get element by id and hide it get element by id with javascript set a cookie on click and then check if the cookie is set and dont show that message again console table rather than console log for javascript objects and arrays
Related Search Terms
Search Code
Search Code by entering your search text above.
Welcome

This is my test area for webdev. I keep a collection of code here, mostly for my reference. Also if i find a good link, i usually add it here and then forget about it. more...

Subscribe to weekly updates about things i have added to the site or thought interesting during the last week.

You could also follow me on twitter or not... does anyone even use twitter anymore?

If you found something useful or like my work, you can buy me a coffee here. Mmm Coffee. ☕

❤️👩‍💻🎮

🪦 2000 - 16 Oct 2022 - Boots
Random Quote

Please dont do this! 😜


Unknown Web Developer
Random CSS Property

inset-inline-start

The inset-inline-start CSS property defines the logical inline start inset of an element, which maps to a physical offset depending on the element's writing mode, directionality, and text orientation. It corresponds to the top, right, bottom, or left property depending on the values defined for writing-mode, direction, and text-orientation.
inset-inline-start css reference