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    <h1 class="class">Rack::Server</h1>

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        <div id="default_middleware_by_environment-method" class="method-detail ">
          <a name="method-c-default_middleware_by_environment"></a>

          
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            <span class="method-name">default_middleware_by_environment</span><span
              class="method-args">()</span>
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            <div class="method-source-code" id="default_middleware_by_environment-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 218</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">default_middleware_by_environment</span>
  <span class="ruby-identifier">m</span> = <span class="ruby-constant">Hash</span>.<span class="ruby-identifier">new</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">h</span>,<span class="ruby-identifier">k</span><span class="ruby-operator">|</span> <span class="ruby-identifier">h</span>[<span class="ruby-identifier">k</span>] = []}
  <span class="ruby-identifier">m</span>[<span class="ruby-string">&quot;deployment&quot;</span>] = [
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">ContentLength</span>],
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Chunked</span>],
    <span class="ruby-identifier">logging_middleware</span>,
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">TempfileReaper</span>]
  ]
  <span class="ruby-identifier">m</span>[<span class="ruby-string">&quot;development&quot;</span>] = [
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">ContentLength</span>],
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Chunked</span>],
    <span class="ruby-identifier">logging_middleware</span>,
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">ShowExceptions</span>],
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Lint</span>],
    [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">TempfileReaper</span>]
  ]

  <span class="ruby-identifier">m</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- default_middleware_by_environment-source -->
            
          </div>

          

          
        </div><!-- default_middleware_by_environment-method -->

      
        <div id="logging_middleware-method" class="method-detail ">
          <a name="method-c-logging_middleware"></a>

          
          <div class="method-heading">
            <span class="method-name">logging_middleware</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="logging_middleware-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 212</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">logging_middleware</span>
  <span class="ruby-identifier">lambda</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">server</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">server</span>.<span class="ruby-identifier">server</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">/CGI/</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">server</span>.<span class="ruby-identifier">options</span>[<span class="ruby-value">:quiet</span>] <span class="ruby-operator">?</span> <span class="ruby-keyword">nil</span> <span class="ruby-operator">:</span> [<span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">CommonLogger</span>, <span class="ruby-identifier">$stderr</span>]
  }
<span class="ruby-keyword">end</span></pre>
            </div><!-- logging_middleware-source -->
            
          </div>

          

          
        </div><!-- logging_middleware-method -->

      
        <div id="middleware-method" class="method-detail ">
          <a name="method-c-middleware"></a>

          
          <div class="method-heading">
            <span class="method-name">middleware</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="middleware-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 238</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">middleware</span>
  <span class="ruby-identifier">default_middleware_by_environment</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- middleware-source -->
            
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        </div><!-- middleware-method -->

      
        <div id="new-method" class="method-detail ">
          <a name="method-c-new"></a>

          
          <div class="method-heading">
            <span class="method-name">new</span><span
              class="method-args">(options = nil)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            <p><a href="Server/Options.html">Options</a> may include:</p>
<ul><li>
<p>:app</p>

<pre>a rack application to run (overrides :config)</pre>
</li><li>
<p>:config</p>

<pre>a rackup configuration file path to load (.ru)</pre>
</li><li>
<p>:environment</p>

<pre>this selects the middleware that will be wrapped around
your application. Default options available are:
  - development: CommonLogger, ShowExceptions, and Lint
  - deployment: CommonLogger
  - none: no extra middleware
note: when the server is a cgi server, CommonLogger is not included.</pre>
</li><li>
<p>:server</p>

<pre>choose a specific Rack::Handler, e.g. cgi, fcgi, webrick</pre>
</li><li>
<p>:daemonize</p>

<pre>if true, the server will daemonize itself (fork, detach, etc)</pre>
</li><li>
<p>:pid</p>

<pre>path to write a pid file after daemonize</pre>
</li><li>
<p>:Host</p>

<pre>the host address to bind to (used by supporting Rack::Handler)</pre>
</li><li>
<p>:Port</p>

<pre>the port to bind to (used by supporting Rack::Handler)</pre>
</li><li>
<p>:AccessLog</p>

<pre>webrick access log options (or supporting Rack::Handler)</pre>
</li><li>
<p>:debug</p>

<pre>turn on debug output ($DEBUG = true)</pre>
</li><li>
<p>:warn</p>

<pre>turn on warnings ($-w = true)</pre>
</li><li>
<p>:include</p>

<pre>add given paths to $LOAD_PATH</pre>
</li><li>
<p>:require</p>

<pre>require the given libraries</pre>
</li></ul>
            

            
            <div class="method-source-code" id="new-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 184</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">options</span> = <span class="ruby-keyword">nil</span>)
  <span class="ruby-ivar">@options</span> = <span class="ruby-identifier">options</span>
  <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:app</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:app</span>]
<span class="ruby-keyword">end</span></pre>
            </div><!-- new-source -->
            
          </div>

          

          
        </div><!-- new-method -->

      
        <div id="start-method" class="method-detail ">
          <a name="method-c-start"></a>

          
          <div class="method-heading">
            <span class="method-name">start</span><span
              class="method-args">(options = nil)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            <p>Start a new rack server (like running rackup). This will parse ARGV and
provide standard ARGV rackup options, defaulting to load 'config.ru'.</p>

<p>Providing an options hash will prevent ARGV parsing and will not include
any default options.</p>

<p>This method can be used to very easily launch a CGI application, for
example:</p>

<pre>Rack::Server.start(
  :app =&gt; lambda do |e|
    [200, {'Content-Type' =&gt; 'text/html'}, ['hello world']]
  end,
  :server =&gt; 'cgi'
)</pre>

<p>Further options available here are documented on Rack::Server#initialize</p>
            

            
            <div class="method-source-code" id="start-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 146</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">start</span>(<span class="ruby-identifier">options</span> = <span class="ruby-keyword">nil</span>)
  <span class="ruby-identifier">new</span>(<span class="ruby-identifier">options</span>).<span class="ruby-identifier">start</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- start-source -->
            
          </div>

          

          
        </div><!-- start-method -->

      
      </div><!-- public-class-method-details -->
    
      <div id="public-instance-method-details" class="method-section section">
        <h3 class="section-header">Public Instance Methods</h3>

      
        <div id="app-method" class="method-detail ">
          <a name="method-i-app"></a>

          
          <div class="method-heading">
            <span class="method-name">app</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="app-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 207</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">app</span>
  <span class="ruby-ivar">@app</span> <span class="ruby-operator">||=</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:builder</span>] <span class="ruby-operator">?</span> <span class="ruby-identifier">build_app_from_string</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">build_app_and_options_from_config</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- app-source -->
            
          </div>

          

          
        </div><!-- app-method -->

      
        <div id="default_options-method" class="method-detail ">
          <a name="method-i-default_options"></a>

          
          <div class="method-heading">
            <span class="method-name">default_options</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="default_options-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 193</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">default_options</span>
  <span class="ruby-identifier">environment</span>  = <span class="ruby-constant">ENV</span>[<span class="ruby-string">'RACK_ENV'</span>] <span class="ruby-operator">||</span> <span class="ruby-string">'development'</span>
  <span class="ruby-identifier">default_host</span> = <span class="ruby-identifier">environment</span> <span class="ruby-operator">==</span> <span class="ruby-string">'development'</span> <span class="ruby-operator">?</span> <span class="ruby-string">'localhost'</span> <span class="ruby-operator">:</span> <span class="ruby-string">'0.0.0.0'</span>

  {
    <span class="ruby-value">:environment</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">environment</span>,
    <span class="ruby-value">:pid</span>         =<span class="ruby-operator">&gt;</span> <span class="ruby-keyword">nil</span>,
    <span class="ruby-value">:Port</span>        =<span class="ruby-operator">&gt;</span> <span class="ruby-value">9292</span>,
    <span class="ruby-value">:Host</span>        =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">default_host</span>,
    <span class="ruby-value">:AccessLog</span>   =<span class="ruby-operator">&gt;</span> [],
    <span class="ruby-value">:config</span>      =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&quot;config.ru&quot;</span>
  }
<span class="ruby-keyword">end</span></pre>
            </div><!-- default_options-source -->
            
          </div>

          

          
        </div><!-- default_options-method -->

      
        <div id="middleware-method" class="method-detail ">
          <a name="method-i-middleware"></a>

          
          <div class="method-heading">
            <span class="method-name">middleware</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="middleware-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 243</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">middleware</span>
  <span class="ruby-keyword">self</span>.<span class="ruby-identifier">class</span>.<span class="ruby-identifier">middleware</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- middleware-source -->
            
          </div>

          

          
        </div><!-- middleware-method -->

      
        <div id="options-method" class="method-detail ">
          <a name="method-i-options"></a>

          
          <div class="method-heading">
            <span class="method-name">options</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="options-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 189</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">options</span>
  <span class="ruby-ivar">@options</span> <span class="ruby-operator">||=</span> <span class="ruby-identifier">parse_options</span>(<span class="ruby-constant">ARGV</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- options-source -->
            
          </div>

          

          
        </div><!-- options-method -->

      
        <div id="server-method" class="method-detail ">
          <a name="method-i-server"></a>

          
          <div class="method-heading">
            <span class="method-name">server</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="server-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 289</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">server</span>
  <span class="ruby-ivar">@_server</span> <span class="ruby-operator">||=</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Handler</span>.<span class="ruby-identifier">get</span>(<span class="ruby-identifier">options</span>[<span class="ruby-value">:server</span>]) <span class="ruby-operator">||</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Handler</span>.<span class="ruby-identifier">default</span>(<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- server-source -->
            
          </div>

          

          
        </div><!-- server-method -->

      
        <div id="start-method" class="method-detail ">
          <a name="method-i-start"></a>

          
          <div class="method-heading">
            <span class="method-name">start</span><span
              class="method-args">(&blk)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="start-source">
<pre>
<span class="ruby-comment"># File lib/rack/server.rb, line 247</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">start</span> &amp;<span class="ruby-identifier">blk</span>
  <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:warn</span>]
    <span class="ruby-identifier">$-w</span> = <span class="ruby-keyword">true</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">includes</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:include</span>]
    <span class="ruby-identifier">$LOAD_PATH</span>.<span class="ruby-identifier">unshift</span>(*<span class="ruby-identifier">includes</span>)
  <span class="ruby-keyword">end</span>

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">library</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:require</span>]
    <span class="ruby-identifier">require</span> <span class="ruby-identifier">library</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:debug</span>]
    <span class="ruby-identifier">$DEBUG</span> = <span class="ruby-keyword">true</span>
    <span class="ruby-identifier">require</span> <span class="ruby-string">'pp'</span>
    <span class="ruby-identifier">p</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:server</span>]
    <span class="ruby-identifier">pp</span> <span class="ruby-identifier">wrapped_app</span>
    <span class="ruby-identifier">pp</span> <span class="ruby-identifier">app</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">check_pid!</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:pid</span>]

  <span class="ruby-comment"># Touch the wrapped app, so that the config.ru is loaded before</span>
  <span class="ruby-comment"># daemonization (i.e. before chdir, etc).</span>
  <span class="ruby-identifier">wrapped_app</span>

  <span class="ruby-identifier">daemonize_app</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:daemonize</span>]

  <span class="ruby-identifier">write_pid</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:pid</span>]

  <span class="ruby-identifier">trap</span>(<span class="ruby-value">:INT</span>) <span class="ruby-keyword">do</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">server</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:shutdown</span>)
      <span class="ruby-identifier">server</span>.<span class="ruby-identifier">shutdown</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">exit</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">server</span>.<span class="ruby-identifier">run</span> <span class="ruby-identifier">wrapped_app</span>, <span class="ruby-identifier">options</span>, &amp;<span class="ruby-identifier">blk</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- start-source -->
            
          </div>

          

          
        </div><!-- start-method -->

      
      </div><!-- public-instance-method-details -->
    
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