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

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By Ted Roden

The internet is more and more taking place in realtime. With web pages akin to fb and Twitter prime the best way, clients are coming to anticipate that each one websites may still serve content material because it happens -- on smartphones in addition to pcs. This publication indicates you ways to construct realtime person studies by means of including chat, streaming content material, and together with extra gains in your website one piece at a time, with no making gigantic alterations to the prevailing infrastructure. You'll additionally tips on how to serve realtime content material past the browser.

through the ebook are many functional JavaScript and Python examples so that you can use in your web site now. And within the ultimate bankruptcy, you'll construct a location-aware video game that mixes the entire applied sciences mentioned.
* Use the newest realtime syndication expertise, together with PubSubHubbub
* construct dynamic widgets in your homepage to teach realtime updates from a number of resources
* how one can use lengthy polling to "push" content material out of your server to browsers
* Create an software utilizing the twister net server that is smart of huge quantities of streaming content material
* comprehend the original requisites for establishing a uncomplicated chat provider
* Use IM and SMS to permit clients to have interaction together with your web site outdoor of an internet browser
* enforce customized analytics to degree engagement in realtime

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Additional resources for Building the Realtime User Experience: Creating Immersive and Interactive Websites

Example text

The class we built earlier will work perfectly for publishing content, but let’s add one extra function to make the process much easier. php file created earlier and add the following code. ://|i", $topic_url)) throw new Exception('Invalid URL: ' . mode', 'publish'); } return $this->_post(); This is an extremely simple publish function. First, we do a very basic check to ensure we have a valid topic URL. mode to publish. Actually pinging the hub is as simple as calling the _post method. Unlike the subscribe process, we don’t have to wait for the hub to ping us back; at this point, we’re done publishing.

First, it will use Twitter’s API to find the trending topics on Twitter. Trending topics are keywords that are currently very active in tweets on Twitter. Then, we’ll create a realtime feed of tweets that contain any of those keywords. So if “realtime” is a trending topic, this widget will display any tweet containing the word “realtime” as it comes in. 39 HTML Since there is no server-side part to this example, you can put the files wherever it makes sense in your setup. We’ll be creating two files total: one HTML file and a JavaScript file.

The SUP file should also provide alternate URLs for different spans of time. No matter what time frame is used, the process to generate the file is the same. 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.

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