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devdata/https_mojolicious.io_blog_2017_12_02_day-2-the-stash  view on Meta::CPAN

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              <section id="section-1">
                  <p>In Mojolicious, when processing a request and preparing a response one of the most important concepts is &quot;the stash&quot;.
Since it is a non-blocking framework, your code can&#39;t use global variables to store any state during processing.
If you did and some other code were to run, it could very easily get cross-talk between requests.</p>

<p>The stash is the place you can store information while you process it.
It is just a simple hash reference that is attached to the controller object that is processing the request.
It lives and dies with that one transaction.</p>

<p>While you can and should use it as a scratchpad, it really is much more.
The stash controls almost every aspect of the response that you generate.
Let&#39;s look a little closer to see how it works</p>

devdata/https_mojolicious.io_blog_2017_12_04_day-4-dont-fear-the-full-app  view on Meta::CPAN

my $protected = $r->under('/protected' => sub {
  # check authentication
});

# /protected/safe
$protected->get('/safe' => 'safe');

$r->get('/another_unsafe' => ...);
</code></pre>

<p>Since Lite app keywords don&#39;t have a way to attach to another route, they basically always add them to the &quot;current global route&quot;.
That&#39;s where the confusion comes in.</p>

<p>Speaking of which, I&#39;m going to let you in even deeper on my secret.
I like the chained type of routing so much more than using <code>group</code> that I actually use it in my Lite apps.
Sure I still use <code>app</code> and <code>plugin</code>, but one of the first things I do is <code>my $r = app-&gt;routes</code>.
Then, I use that instead of the routing keywords in all but the simplest of cases.</p>

<h2>Conclusion</h2>

<p>That&#39;s it, with the exception of using <code>group</code> for nested routing, it is just direct translation.