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<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Node.js & Drupal | DrupalCampMA 2013</title>
    <meta name="author" content="Alexander Hripak">
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  </head>
  <body>
    <div class="reveal">
      <!-- Any section element inside of this container is displayed as a slide -->
      <div class="slides">
	<section>
	  <h1>Node.js</h1>
	  <h1>& Drupal</h1>
	  <p>
	    <small>Created by <a href="http://alexdoesit.com">Alex Hripak</a> / <a href="http://twitter.com/alexh58">@alexh58</a></small>
	  </p>
	</section>
	<section>
	  <h1>:/ root$ WHOAMI;</h1>
	</section>
	<section>
	  <h1>What is Node.js?</h1>
	  <ul>
	    <li class="fragment">Server side JavaScript</li>
	    <li class="fragment">Based on Chrome's V8 JavaScript engine</li>
	    <li class="fragment">Event Driven</li>
	    <li class="fragment">Asynchronous in nature</li>
	  </ul>
	</section>
	<section>
	  <h1>Apache Pitfalls</h1>
	  <ul>
	    <li class="fragment">Memory heavy</li>
	    <li class="fragment">One thread per connection</li>
	    <li class="fragment">Persistent connections are bad</li>
	  </ul>
	  <div class="fragment">
	    <hr />
	    <p>Node.js is single process and  multi-threaded. Great for integrating other services.</p>
	    </div>
	</section>
	<section>
	  <h1>Limiting Factors</h1>
	  <p><strong>With Apache...</strong></p>
	  <ul>
	    <li>memory_limit</li>
	    <li>max_execution_time</li>
	    <li>MaxClients</li>
	  </ul>
	  <div class="fragment">
	    <hr />
	    <p><strong>With Node.js...</strong></p>
	    <ul>
	      <li>How many open sockets can you have?</li>
	      <li>How much bandwidth can you grab?</li>
	      <li>How fast can you issue requests?</li>
	    </ul>
	  </div>
	</section>
	<section>
	  <section>
	    <h1>A Good Use Case</h1>
	    <p><img src="images/node_save_screenshot.png" /></p>
	  </section>
	  <section>
	    <p><img src="images/hook_node_insert_meme.jpg" style="height:90%;" /></p>
	  </section>
	  <section>
	    <h2>Hypothetical Mail With PHP</h2>
	    <pre><code class="php">$count = 0;
$emails = array(
  'alex@example.com',
  'rob@example.com',
  'tom@example.com',
);

foreach($emails as $email) {
  if(drupal_mail($module, $key, $email, language_default(), array(), 'alex@left-click.us', TRUE)) {
    $count++;
  }
}

echo "We sent {$count} email(s).";</code></pre>
	  </section>
	  <section>
	    <h2>Hypothetical Mail With Node.js</h2>
	    <pre><code class="javascript">var mail = require('mail');
var emails = [
  'alex@example.com',
  'rob@example.com',
  'tom@example.com'
];

emails.forEach(function(email, i) {
  mail(email, $message, 'alex@left-click.us', function(error) {
    if(!error) { count++; }
    if(i == emails.length - 1) {
      console.log("We sent " + count + " email(s).");
    }
  });
});

console.log("We've finished the script.");</code></pre>
	  </section>
	</section>
	<section>
	  <h1>Yea yea yea...</h1>
	  <br />
	  <h1>Make it work with Drupal Plz!</h1>
	</section>
	<section>
	  <h1>Node.js Module</h1>
	  <ul>
	    <li><a href="http://drupal.org/project/nodejs">http://drupal.org/project/nodejs</a></li>
	    <li>Made by Justin Randell AKA beejeebus</li>
	    <li>Provides server.js and a Drupal module</li>
	    <li>It's an API so you can implement node in your own way</li>
	  </ul>
	</section>
	<section>
	  <section>
	    <img src="images/int_1.png" />
	  </section>
	  <section>
	    <img src="images/int_2.png" />
	  </section>
	  <section>
	    <img src="images/int_3.png" />
	  </section>
	  <section>
	    <img src="images/int_4.png" />
	  </section>
	  <section>
	    <img src="images/int_5.png" />
	  </section>
	  <section>
	    <img src="images/int_6.png" />
	  </section>
	</section>
	<section>
	  <section>
	    <h1>How to Implement</h1>
	  </section>
	  <section>
	    <h2>Server side: Send Event</h2>
	    <pre><code class="php">$message = (object) array(
  'channel' => 'mymodule',
  'data' => array(
    'mymessage' => 'The Actual Message',
  ),
);

nodejs_enqueue_message($message);</code></pre>
	  </section>
	  <section>
	    <h2>Client side: Receive Event</h2>
	    <pre><code class="javascript">Drupal.Nodejs.callbacks.mymodule = {
  callback: function(message) {
    if(message.channel == 'mymodule') {
      console.log(message.data.mymessage);
    }
  }
};</code></pre>
	  </section>
	  <section>
	    <h2>Hooks</h2>
	    <ul>
	      <li><em>hook_nodejs_handlers_info()</em></li>
	      <li><em>hook_nodejs_user_channels()</em></li>
	      <li><em>hook_nodejs_auth_check()</em></li>
	    </ul>
	    <div class="fragment">
	      <hr />
	      <h2>Helper Functions</h2>
	      <ul>
		<li>nodejs_add_user_to_channel()</li>
		<li>nodejs_remove_user_from_channel()</li>
		<li>nodejs_kick_user()</li>
		<li>nodejs_broadcast_message()</li>
	      </ul>
	      <br />
	      <br />
	      <p>You can also <br /><code>drush broadcast-message "Hello" "World"</code></p>
	    </div>
	  </section>
	</section>
	<section>
	  <h1>Demo</h1>
	</section>
	<section>
	  <h1>QA & Resources</h1>
	  <ul>
	    <li><a href="https://npmjs.org/">https://npmjs.org</a></li>
	    <li><a href="http://www.youtube.com/watch?v=zQreu722RE8">http://www.youtube.com/watch?v=zQreu722RE8</a></li>
	    <li><a href="http://theoleschool.com/blog/module-development-nodejs-integration">http://theoleschool.com/blog/module-develop...</a></li>
	  </ul>
	  <br /><br />
          <p>Slides and demo available at</p>
          <p style="font-size:1.6em;"><a href="http://goo.gl/DtjoR">http://goo.gl/DtjoR</a></p>
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