Download Building the Realtime User Experience: Creating Immersive by Ted Roden PDF

By Ted Roden

The internet is more and more occurring in realtime. With web pages corresponding to fb and Twitter best the way in which, clients are coming to count on that every one websites may still serve content material because it happens -- on smartphones in addition to pcs. This ebook exhibits you ways to construct realtime consumer stories by way of including chat, streaming content material, and together with extra good points in your web site one piece at a time, with no making titanic adjustments to the prevailing infrastructure. You'll additionally tips on how to serve realtime content material past the browser.

during the booklet are many functional JavaScript and Python examples for you to use in your website now. And within the ultimate bankruptcy, you'll construct a location-aware video game that mixes the entire applied sciences mentioned.
* Use the most recent realtime syndication expertise, together with PubSubHubbub
* construct dynamic widgets in your homepage to teach realtime updates from a number of resources
* the best way to use lengthy polling to "push" content material out of your server to browsers
* Create an program utilizing the twister internet server that is smart of huge quantities of streaming content material
* comprehend the original requisites for constructing a simple chat carrier
* Use IM and SMS to let clients to engage along with your website open air of an online browser
* enforce customized analytics to degree engagement in realtime

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Max_id; When this callback method is called, its parameter is a data object that contains an array of tweets matching the search criteria. Each object contains the text of the tweet along with other information such as the username and even the language of the tweet. add Line, which will add the tweet to the interface. In addition to adding each individual tweet to the widget, it’s also a good idea to inform the user of how many tweets were just added. updateTitle that can be used by all of the widgets, not just the trending widget.

To generate a SUP file, all the publisher needs to do is grab all the users who have updated their bookmarks in the specified time frame, generate the SUP-ID, and output the file. This file can be added to our hypothetical PHP-based bookmarking site with a very short script. php // get the time frame they're requesting, default to 30 seconds // this is known as the 'period' in the SUP spec. $age = (is_numeric($_GET['age']) ? $_GET['age'] : 30); // we also add 30 seconds to provide a good amount of overlap.

AppendJS to fetch the currently trending topics from Twitter. catchTrends. catchTrends will be executed and the parameter will be a JSON object that contains an array of trend objects from Twitter. These objects have two fields, name and url. init. Loading the trends themselves is only part of this widget; the main goal is to show a realtime feed of tweets that are talking about these trends. In order to do that, we need to search Twitter for those trends. trends array, it’s time to start gathering the tweets themselves.

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