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<!DOCTYPE html><html lang="en-US"><head><title>Micro Frameworks</title><meta property="og:title" content="Micro Frameworks"><meta name="description" content="Frameworks alterativos a Rails"><meta property="og:description" content="Frameworks alterativos a Rails"><meta charset="UTF-8"><meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0"><meta name="apple-mobile-web-app-capable" content="yes"><meta http-equiv="X-UA-Compatible" content="ie=edge"><meta property="og:type" content="website"><meta name="twitter:card" content="summary"><style>@media 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}</style></head><body><div class="bespoke-marp-osc"><button data-bespoke-marp-osc="prev" tabindex="-1" title="Previous slide">Previous slide</button><span data-bespoke-marp-osc="page"></span><button data-bespoke-marp-osc="next" tabindex="-1" title="Next slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button></div><article id="presentation"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="1" data-theme="gaia" data-style="pre code { background: black}
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<h1><svg data-marp-fitting="svg"><foreignObject><span data-marp-fitting-svg-content> Micro Frameworks</span></foreignObject></svg></h1>
</section>
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<h1>Micro Frameworks</h1>
<ul>
<li>Rubygems, Gemas, Bundler</li>
<li>HTTP, REST</li>
<li>Sinatra</li>
<li>Cuba/Syro/Roda</li>
<li>Redis</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="3" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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<h1>Rubygems</h1>
<p>Gestor de librerías (gemas) y dependencias oficial de ruby<br />
<a href="https://rubygems.org/">https://rubygems.org/</a></p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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<h1>Catálogos de gemas</h1>
<ul>
<li>
<p>Awesome Ruby<br />
<a href="https://awesome-ruby.com/">https://awesome-ruby.com/</a></p>
</li>
<li>
<p>Ruby Toolbox<br />
<a href="https://www.ruby-toolbox.com/">https://www.ruby-toolbox.com/</a></p>
</li>
</ul>
</section>
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</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="7"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="8" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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<h1>Comando 'gem'</h1>
<ul>
<li><code>gem install GEMNAME</code></li>
<li><code>gem install GEMNAME -v VERSION</code></li>
<li><code>gem uninstall GEMNAME</code></li>
<li><code>gem list</code> Lista las gemas instaladas</li>
<li><code>gem list --remote REGEXP</code> Lista gemas disponibles</li>
<li><code>gem search REGEXP</code> (Idem)</li>
</ul>
</section>
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<h1>Estructura de una gema</h1>
<pre><code class="language-plain"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap>gem_name/
├── bin/
│ └── gem_name
├── lib/
│ └── gem_name.rb
├── test/
│ └── test_gem_name.rb
├── README
├── Rakefile
└── gem_name.gemspec
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="10" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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<p>Ejemplo: <code>cuba.gemspec</code></p>
<pre><code class="language-plain"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap>Gem::Specification.new do |s|
s.name = "cuba"
s.version = "3.9.2"
s.summary = "Microframework for web applications."
s.description = "Cuba is a microframework for web applications."
s.authors = ["Michel Martens"]
s.email = ["michel@soveran.com"]
s.homepage = "https://github.com/soveran/cuba"
s.license = "MIT"
s.files = `git ls-files`.split("\n")
s.add_dependency "rack", ">= 1.6.0"
s.add_development_dependency "cutest"
s.add_development_dependency "rack-test"
s.add_development_dependency "tilt"
end
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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" data-marpit-pagination="11" style="--paginate:true;--theme:gaia;
;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("images/bundler.png");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="11" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="11"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
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" data-marpit-pagination="12" style="--paginate:true;--theme:gaia;
;">
<h1>Bundler</h1>
<ul>
<li>
<p>Gestiona las dependencias de una aplicación<br />
<a href="https://bundler.io/">https://bundler.io/</a></p>
</li>
<li>
<p>Instalación:<br />
<code>$ gem install bundler</code></p>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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;">
<h1>Bundler</h1>
<ul>
<li>Especificar las dependencies en <code>Gemfile</code>:</li>
</ul>
<pre><code><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-built_in">source</span> <span class="hljs-string">'https://rubygems.org'</span>
gem <span class="hljs-string">'nokogiri'</span>
gem <span class="hljs-string">'rack'</span>, <span class="hljs-string">'~> 2.0.1'</span>
gem <span class="hljs-string">'rspec'</span>, <span class="hljs-string">'>= 3.6'</span>
</span></span></foreignObject></svg></code></pre>
<ul>
<li>SemVer: MAJOR.MINOR.PATCH<br />
<code>rack ~> 2.0.1</code> <em>(2.0.1 ≤ rack < 2.1.0)</em><br />
<code>rack ~> 2.0</code> <em>(2.0 ≤ rack < 3.0)</em></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
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color: black;
border: 1px solid black
}
" data-marpit-pagination="14" style="--paginate:true;--theme:gaia;
;">
<h1>Bundler</h1>
<ul>
<li>Instalar las gemas y sus dependencias:</li>
</ul>
<pre><code><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap>$ bundle install # Instala todas las gemas indicadas en Gemfile.lock
$ bundle update rack # Actualiza la versión de `rack` y sus dependencias
$ bundle update # Actualiza todas las gemas
$ bundle exec<span class="hljs-built_in"> SCRIPT </span> # Ejecuta un<span class="hljs-built_in"> script </span>con las gemas indicadas en Gemfile.lock
</span></span></foreignObject></svg></code></pre>
<p><img class="emoji" draggable="false" alt="⚠️" src="https://twemoji.maxcdn.com/2/svg/26a0.svg" data-marp-twemoji=""/> En el repositorio se guardan <code>Gemfile</code> & <code>Gemfile.lock</code></p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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;--background-color:#fff;background-color:#fff;background-image:none;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("images/sinatra.gif");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="15" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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;--background-color:#fff;background-color:#fff;background-image:none;" data-marpit-advanced-background="content">
<h1>Sinatra</h1>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="15"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
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<h1>Sinatra (~2000 loc)</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">require</span> <span class="hljs-string">'sinatra'</span>
get <span class="hljs-string">'/frank-says'</span> <span class="hljs-keyword">do</span>
<span class="hljs-string">'Put this in your pipe & smoke it!'</span>
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
<pre><code class="language-plain"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap>$ ruby my-app.rb
</span></span></foreignObject></svg></code></pre>
<p><a href="http://localhost:4567/frank-says">localhost:4567/frank-says</a></p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="17" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="17" style="--paginate:true;--theme:gaia;
;">
<h1>Pero...</h1>
<p>¿cómo funciona?<br />
¿Qué es una aplicación rack?</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="18" style="--paginate:true;--theme:gaia;
;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("images/rack-logo.png");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="18" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="18" style="--paginate:true;--theme:gaia;
;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="18"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="19" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="19" style="--paginate:true;--theme:gaia;
;">
<h1>Rack Interface</h1>
<ul>
<li>Debe responder al método <code>call</code></li>
<li>Recibe un argumento (<code>env</code>). Contiene toda la información del request</li>
<li>El método <code>call</code> debe devolver un array con tres elementos:
<ol>
<li>Status code</li>
<li>Headers</li>
<li>Body</li>
</ol>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="20" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="20" style="--paginate:true;--theme:gaia;
;">
<h1>Rack - Hello world</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">require</span> <span class="hljs-string">"rack"</span>
<span class="hljs-keyword">require</span> <span class="hljs-string">"thin"</span>
<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">HelloWorld</span></span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">call</span><span class="hljs-params">(env)</span></span>
[ <span class="hljs-number">200</span>, { <span class="hljs-string">"Content-Type"</span> => <span class="hljs-string">"text/plain"</span> }, [<span class="hljs-string">"Hello World"</span>] ]
<span class="hljs-keyword">end</span>
<span class="hljs-keyword">end</span>
Rack::Handler::Thin.run HelloWorld.new
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="21" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="21" style="--paginate:true;--theme:gaia;
;">
<h1>Middleware en <code>config.ru</code></h1>
<pre><code><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">use</span> FirstMiddleware
<span class="hljs-keyword">use</span> SecondMiddleware
<span class="hljs-meta"># ...</span>
<span class="hljs-keyword">use</span> LoggingMiddleware
<span class="hljs-keyword">use</span> AuthenticationMiddleware
<span class="hljs-keyword">run</span> OurApp.new
</span></span></foreignObject></svg></code></pre>
<p>y se levanta el servidor mediante el comando <code>rackup</code></p>
<p>ver <a href="https://github.com/rack/rack-contrib">rack-contrib</a> para más ejemplos de Rack Middlewares</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="22" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="22" style="--paginate:true;--theme:gaia;
;">
<h1>Middleware - Casos de uso</h1>
<p>Los Middleware son perfecto para la lógica no específica de la aplicación. Cosas como configurar caching headers, logging, parsear el request object, etc. Por ejemplo, en Rails, el manejo de cookies, las sesiones y el parseo de parámetros se hace a través de Middleware.</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="23" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="23" style="--paginate:true;--theme:gaia;
;">
<h1>Sinatra</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">require</span> <span class="hljs-string">'sinatra'</span>
get <span class="hljs-string">'/hello'</span> <span class="hljs-keyword">do</span>
<span class="hljs-string">'Hello World!'</span>
<span class="hljs-keyword">end</span>
get <span class="hljs-string">'/hello/:name'</span> <span class="hljs-keyword">do</span>
<span class="hljs-string">"Hello <span class="hljs-subst">#{params[<span class="hljs-string">'name'</span>]}</span>!"</span>
<span class="hljs-keyword">end</span>
get <span class="hljs-string">'/bye/:name'</span> <span class="hljs-keyword">do</span> <span class="hljs-params">|name|</span>
<span class="hljs-string">"Goodbye <span class="hljs-subst">#{name}</span>!"</span>
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="24" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="24" style="--paginate:true;--theme:gaia;
;">
<h1>Sinatra</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-comment"># matches "GET /posts?title=foo&author=bar"</span>
get <span class="hljs-string">'/posts'</span> <span class="hljs-keyword">do</span>
<span class="hljs-comment"># uses title and author variables; query is optional to the /posts route</span>
title = params[<span class="hljs-string">'title'</span>]
author = params[<span class="hljs-string">'author'</span>]
<span class="hljs-keyword">end</span>
<span class="hljs-comment"># admin.example.com/</span>
get <span class="hljs-string">'/'</span>, <span class="hljs-symbol">host_name:</span> /^admin\./ <span class="hljs-keyword">do</span>
<span class="hljs-string">"Admin Area, Access denied!"</span>
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="25" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="25" style="--paginate:true;--theme:gaia;
;">
<h1>Sinatra</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-comment"># This renders views/index.erb.</span>
get <span class="hljs-string">'/'</span>
erb <span class="hljs-symbol">:index</span>
<span class="hljs-keyword">end</span>
<span class="hljs-comment"># This will render views/index.erb embedded in the views/post.erb</span>
<span class="hljs-comment"># (default is views/layout.erb, if it exists).</span>
get <span class="hljs-string">'/'</span> <span class="hljs-keyword">do</span>
erb <span class="hljs-symbol">:index</span>, <span class="hljs-symbol">layout:</span> <span class="hljs-symbol">:post</span>
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="26" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="26" style="--paginate:true;--theme:gaia;
;">
<h1>ERB (Embedded Ruby)</h1>
<pre><code class="language-erb"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="xml"><span class="hljs-tag"><<span class="hljs-name">h1</span>></span>Esto es HTML<span class="hljs-tag"></<span class="hljs-name">h1</span>></span>
<span class="hljs-tag"><<span class="hljs-name">%</span></span></span><span class="ruby"> <span class="hljs-keyword">if</span> @user </span><span class="xml"><span class="hljs-tag">%></span>
Hola <span class="hljs-tag"><<span class="hljs-name">%=</span></span></span><span class="ruby"> @user.name </span><span class="xml"><span class="hljs-tag">%></span>
<span class="hljs-tag"><<span class="hljs-name">%</span></span></span><span class="ruby"> <span class="hljs-keyword">else</span> </span><span class="xml"><span class="hljs-tag">%></span>
<span class="hljs-tag"><<span class="hljs-name">a</span> <span class="hljs-attr">href</span>=<span class="hljs-string">"/login"</span>></span>Login<span class="hljs-tag"></<span class="hljs-name">a</span>></span>
<span class="hljs-tag"><<span class="hljs-name">%</span></span></span><span class="ruby"> <span class="hljs-keyword">end</span> </span><span class="xml"><span class="hljs-tag">%></span>
</span></span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="27" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="27" style="--paginate:true;--theme:gaia;
;">
<h1>Sinatra</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap>post <span class="hljs-string">'/login'</span>
email = params[<span class="hljs-string">'email'</span>]
password = params[<span class="hljs-string">'password'</span>]
<span class="hljs-keyword">if</span> @user = User.authenticate(email, password)
redirect to(<span class="hljs-string">'/home'</span>)
<span class="hljs-keyword">else</span>
erb <span class="hljs-symbol">:index</span>, <span class="hljs-symbol">:layout</span> => <span class="hljs-symbol">:post</span>
<span class="hljs-keyword">end</span>
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="28" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="28" style="--paginate:true;--theme:gaia;
;">
<h1>Sinatra</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-comment"># Nested routes</span>
get <span class="hljs-string">'/post/:id/comments'</span>
@post = Post.find params[<span class="hljs-string">'id'</span>]
@comments = @post.comments
erb <span class="hljs-symbol">:comments</span>
<span class="hljs-keyword">end</span>
<span class="hljs-comment"># Local params</span>
get <span class="hljs-string">'/post/:id/comments'</span>
post = Post.find params[<span class="hljs-string">'id'</span>]
comments = post.comments
erb <span class="hljs-symbol">:comments</span>, <span class="hljs-symbol">locals:</span> {<span class="hljs-symbol">post:</span> post, <span class="hljs-symbol">comments:</span> comments}
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="29" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="29" style="--paginate:true;--theme:gaia;
;">
<h1>Sinatra</h1>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-comment"># Modular apps</span>
<span class="hljs-keyword">require</span> <span class="hljs-string">'sinatra/base'</span>
<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyApp</span> < Sinatra::Base</span>
set <span class="hljs-symbol">:sessions</span>, <span class="hljs-literal">true</span>
set <span class="hljs-symbol">:foo</span>, <span class="hljs-string">'bar'</span>
get <span class="hljs-string">'/'</span> <span class="hljs-keyword">do</span>
<span class="hljs-string">'Hello world!'</span>
<span class="hljs-keyword">end</span>
<span class="hljs-keyword">end</span>
<span class="hljs-comment"># y en config.ru ...</span>
<span class="hljs-keyword">require</span> <span class="hljs-string">'./my_app'</span>
run MyApp
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-background-color="#faffe0" data-marpit-pagination="30" style="--paginate:true;--theme:gaia;
;--background-color:#faffe0;background-color:#faffe0;background-image:none;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("images/cuba.png");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="30" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-background-color="#faffe0" data-marpit-pagination="30" style="--paginate:true;--theme:gaia;
;--background-color:#faffe0;background-color:#faffe0;background-image:none;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="30"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="31" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="31" style="--paginate:true;--theme:gaia;
;">
<h1>Cuba (349 loc)</h1>
<p><a href="https://github.com/soveran/cuba#cuba">Documentación</a></p>
<p><a href="https://wacko.github.io/theguidetocuba/">The Guide to Cuba</a></p>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">require</span> <span class="hljs-string">"cuba"</span>
Cuba.define <span class="hljs-keyword">do</span>
on <span class="hljs-string">"hello"</span> <span class="hljs-keyword">do</span>
res.write <span class="hljs-string">"hello, world"</span>
<span class="hljs-keyword">end</span>
<span class="hljs-keyword">end</span>
run Cuba
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="32" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="32" style="--paginate:true;--theme:gaia;
;">
<h1>Syro (382 loc)</h1>
<p><a href="http://files.soveran.com/syro/">Presentación</a></p>
<p><a href="https://github.com/soveran/syro/">Documentación</a></p>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">require</span> <span class="hljs-string">"syro"</span>
App = Syro.new <span class="hljs-keyword">do</span>
get <span class="hljs-keyword">do</span>
res.text <span class="hljs-string">"hello, world"</span>
<span class="hljs-keyword">end</span>
<span class="hljs-keyword">end</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="33" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="33" style="--paginate:true;--theme:gaia;
;">
<h1>Roda</h1>
<p><a href="https://github.com/jeremyevans/roda">Repositorio</a></p>
<p><a href="http://roda.jeremyevans.net/documentation.html">Documentación</a></p>
<p><a href="https://speakerdeck.com/janko_m/dynamic-routing-in-ruby">Comparación con Rails</a></p>
<p><a href="https://www.openmymind.net/2012/1/23/The-Little-Redis-Book/">The Little Redis Book</a></p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="34" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="34" style="--paginate:true;--theme:gaia;
;">
<h1>Redis</h1>
<p>Documentación: <a href="https://redis.io/commands/set">SET</a>, <a href="https://redis.io/commands/get">GET</a></p>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">require</span> <span class="hljs-string">"redis"</span>
redis = Redis.new(<span class="hljs-symbol">host:</span> <span class="hljs-string">"localhost"</span>, <span class="hljs-symbol">port:</span> <span class="hljs-number">12345</span>)
redis.set(<span class="hljs-string">"mykey"</span>, <span class="hljs-string">"hello world"</span>)
<span class="hljs-comment"># => "OK"</span>
redis.get(<span class="hljs-string">"mykey"</span>)
<span class="hljs-comment"># => "hello world"</span>
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="35" data-paginate="true" data-theme="gaia" data-style="pre code { background: black}
h1 code {
background: #fff8e1;
color: black;
border: 1px solid black
}
" data-marpit-pagination="35" style="--paginate:true;--theme:gaia;
;">
<h1>Redis</h1>
<p>Documentación: <a href="https://redis.io/commands/hmset">HMSET</a>, <a href="https://redis.io/commands/hmget">HMGET</a></p>
<pre><code class="language-ruby"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-comment"># user creation</span>
username = <span class="hljs-string">"joaquin"</span>
name = <span class="hljs-string">"Joaquin Vicente"</span>
password = <span class="hljs-string">"1234"</span>
redis.hmset(<span class="hljs-string">"user:<span class="hljs-subst">#{username}</span>"</span>, <span class="hljs-string">"name"</span>, name, <span class="hljs-string">"password"</span>, password)
<span class="hljs-comment"># user login</span>
name, password = redis.hmget(<span class="hljs-string">"user:<span class="hljs-subst">#{username}</span>"</span>, <span class="hljs-string">"name"</span>, <span class="hljs-string">"password"</span>)
password = redis.hget(<span class="hljs-string">"user:<span class="hljs-subst">#{username}</span>"</span>, <span class="hljs-string">"password"</span>)
</span></span></foreignObject></svg></code></pre>
</section>
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