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    <p>Yes Dart has support for sessions which are more or less like in PHP.</p> <p>Let's write a simple program that randomizes a fruit between apples and bananas and saves the choice to the session.</p> <pre class="lang-dart prettyprint-override"><code>import 'dart:io'; import 'dart:math'; // A method that returns "apple" or "banana" randomly. String getRandomFruit() =&gt; new Random().nextBool() ? 'apple' : 'banana'; main() { var server = new HttpServer(); server.defaultRequestHandler = (HttpRequest req, HttpResponse res) { // Initialize session with an empty {} object as data. var session = req.session((s) =&gt; s.data = {}); // Save fruit to session if there is nothing in there. if (session.data['fruit'] == null) session.data['fruit'] = getRandomFruit(); // Retrieve fruit from the session. var fruit = session.data['fruit']; res.outputStream.writeString("Your fruit: $fruit", Encoding.UTF_8); res.outputStream.close(); }; server.listen('127.0.0.1', 80); } </code></pre> <p>Now when you run the code and go to <code>http://localhost</code>, every time you see the same fruit as long as the session stays open, because we save the fruit to the session.</p> <p>Notes:</p> <ul> <li>The <a href="http://api.dartlang.org/docs/bleeding_edge/dart_io/HttpRequest.html" rel="noreferrer"><code>HttpRequest</code></a> class has this method <a href="http://api.dartlang.org/docs/bleeding_edge/dart_io/HttpRequest.html#session" rel="noreferrer"><code>session()</code></a> which initializes (or returns) the <a href="http://api.dartlang.org/docs/bleeding_edge/dart_io/HttpSession.html" rel="noreferrer"><code>HttpSession</code></a> instance.</li> <li>The <a href="http://api.dartlang.org/docs/bleeding_edge/dart_io/HttpSession.html" rel="noreferrer"><code>HttpSession</code></a> has a property called <code>data</code>, but you might want to initialize it first to be an empty <code>{}</code>.</li> </ul>
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