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  <title>Class: Rack::Response</title>
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<body>



    <div id="classHeader">
        <table class="header-table">
        <tr class="top-aligned-row">
          <td><strong>Class</strong></td>
          <td class="class-name-in-header">Rack::Response</td>
        </tr>
        <tr class="top-aligned-row">
            <td><strong>In:</strong></td>
            <td>
                <a href="../../files/lib/rack/response_rb.html">
                lib/rack/response.rb
                </a>
        <br />
            </td>
        </tr>

        <tr class="top-aligned-row">
            <td><strong>Parent:</strong></td>
            <td>
                Object
            </td>
        </tr>
        </table>
    </div>
  <!-- banner header -->

  <div id="bodyContent">



  <div id="contextContent">

    <div id="description">
      <p>
<a href="Response.html">Rack::Response</a> provides a convenient interface
to create a <a href="../Rack.html">Rack</a> response.
</p>
<p>
It allows setting of headers and cookies, and provides useful defaults (a
OK response containing HTML).
</p>
<p>
You can use <a href="Response.html#M000219">Response#write</a> to
iteratively generate your response, but note that this is buffered by <a
href="Response.html">Rack::Response</a> until you call <tt><a
href="Response.html#M000215">finish</a></tt>. <tt><a
href="Response.html#M000215">finish</a></tt> however can take a block
inside which calls to <tt><a href="Response.html#M000219">write</a></tt>
are synchronous with the <a href="../Rack.html">Rack</a> response.
</p>
<p>
Your application&#8216;s <tt>call</tt> should end returning <a
href="Response.html#M000215">Response#finish</a>.
</p>

    </div>


   </div>

    <div id="method-list">
      <h3 class="section-bar">Methods</h3>

      <div class="name-list">
      <a href="#M000210">[]</a>&nbsp;&nbsp;
      <a href="#M000211">[]=</a>&nbsp;&nbsp;
      <a href="#M000220">close</a>&nbsp;&nbsp;
      <a href="#M000213">delete_cookie</a>&nbsp;&nbsp;
      <a href="#M000218">each</a>&nbsp;&nbsp;
      <a href="#M000221">empty?</a>&nbsp;&nbsp;
      <a href="#M000215">finish</a>&nbsp;&nbsp;
      <a href="#M000209">new</a>&nbsp;&nbsp;
      <a href="#M000214">redirect</a>&nbsp;&nbsp;
      <a href="#M000212">set_cookie</a>&nbsp;&nbsp;
      <a href="#M000216">to_a</a>&nbsp;&nbsp;
      <a href="#M000217">to_ary</a>&nbsp;&nbsp;
      <a href="#M000219">write</a>&nbsp;&nbsp;
      </div>
    </div>

  </div>


    <!-- if includes -->
    <div id="includes">
      <h3 class="section-bar">Included Modules</h3>

      <div id="includes-list">
        <span class="include-name"><a href="Response/Helpers.html">Helpers</a></span>
      </div>
    </div>

    <div id="section">

    <div id="class-list">
      <h3 class="section-bar">Classes and Modules</h3>

      Module <a href="Response/Helpers.html" class="link">Rack::Response::Helpers</a><br />

    </div>

    <div id="constants-list">
      <h3 class="section-bar">Constants</h3>

      <div class="name-list">
        <table summary="Constants">
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">CHUNKED</td>
          <td>=</td>
          <td class="context-item-value">'chunked'.freeze</td>
        </tr>
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">TRANSFER_ENCODING</td>
          <td>=</td>
          <td class="context-item-value">'Transfer-Encoding'.freeze</td>
        </tr>
        </table>
      </div>
    </div>

    <div id="aliases-list">
      <h3 class="section-bar">External Aliases</h3>

      <div class="name-list">
                        <table summary="aliases">
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">header</td>
          <td>-&gt;</td>
          <td class="context-item-value">headers</td>
        </tr>
                        </table>
      </div>
    </div>


    <div id="attribute-list">
      <h3 class="section-bar">Attributes</h3>

      <div class="name-list">
        <table>
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">body</td>
          <td class="context-item-value">&nbsp;[RW]&nbsp;</td>
          <td class="context-item-desc"></td>
        </tr>
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">header</td>
          <td class="context-item-value">&nbsp;[R]&nbsp;</td>
          <td class="context-item-desc"></td>
        </tr>
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">length</td>
          <td class="context-item-value">&nbsp;[RW]&nbsp;</td>
          <td class="context-item-desc"></td>
        </tr>
        <tr class="top-aligned-row context-row">
          <td class="context-item-name">status</td>
          <td class="context-item-value">&nbsp;[RW]&nbsp;</td>
          <td class="context-item-desc"></td>
        </tr>
        </table>
      </div>
    </div>
      


    <!-- if method_list -->
    <div id="methods">
      <h3 class="section-bar">Public Class methods</h3>

      <div id="method-M000209" class="method-detail">
        <a name="M000209"></a>

        <div class="method-heading">
          <a href="Response.src/M000209.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000209.html');return false;">
          <span class="method-name">new</span><span class="method-args">(body=[], status=200, header={}) {|self if block_given?| ...}</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <h3 class="section-bar">Public Instance methods</h3>

      <div id="method-M000210" class="method-detail">
        <a name="M000210"></a>

        <div class="method-heading">
          <a href="Response.src/M000210.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000210.html');return false;">
          <span class="method-name">[]</span><span class="method-args">(key)</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000211" class="method-detail">
        <a name="M000211"></a>

        <div class="method-heading">
          <a href="Response.src/M000211.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000211.html');return false;">
          <span class="method-name">[]=</span><span class="method-args">(key, value)</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000220" class="method-detail">
        <a name="M000220"></a>

        <div class="method-heading">
          <a href="Response.src/M000220.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000220.html');return false;">
          <span class="method-name">close</span><span class="method-args">()</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000213" class="method-detail">
        <a name="M000213"></a>

        <div class="method-heading">
          <a href="Response.src/M000213.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000213.html');return false;">
          <span class="method-name">delete_cookie</span><span class="method-args">(key, value={})</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000218" class="method-detail">
        <a name="M000218"></a>

        <div class="method-heading">
          <a href="Response.src/M000218.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000218.html');return false;">
          <span class="method-name">each</span><span class="method-args">(&amp;callback)</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000221" class="method-detail">
        <a name="M000221"></a>

        <div class="method-heading">
          <a href="Response.src/M000221.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000221.html');return false;">
          <span class="method-name">empty?</span><span class="method-args">()</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000215" class="method-detail">
        <a name="M000215"></a>

        <div class="method-heading">
          <a href="Response.src/M000215.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000215.html');return false;">
          <span class="method-name">finish</span><span class="method-args">(&amp;block)</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000214" class="method-detail">
        <a name="M000214"></a>

        <div class="method-heading">
          <a href="Response.src/M000214.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000214.html');return false;">
          <span class="method-name">redirect</span><span class="method-args">(target, status=302)</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000212" class="method-detail">
        <a name="M000212"></a>

        <div class="method-heading">
          <a href="Response.src/M000212.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000212.html');return false;">
          <span class="method-name">set_cookie</span><span class="method-args">(key, value)</span>
          </a>
        </div>
      
        <div class="method-description">
        </div>
      </div>

      <div id="method-M000216" class="method-detail">
        <a name="M000216"></a>

        <div class="method-heading">
          <span class="method-name">to_a</span><span class="method-args">(&amp;block)</span>
        </div>
      
        <div class="method-description">
          <p>
Alias for <a href="Response.html#M000215">finish</a>
</p>
        </div>
      </div>

      <div id="method-M000217" class="method-detail">
        <a name="M000217"></a>

        <div class="method-heading">
          <span class="method-name">to_ary</span><span class="method-args">(&amp;block)</span>
        </div>
      
        <div class="method-description">
          <p>
Alias for <a href="Response.html#M000215">finish</a>
</p>
        </div>
      </div>

      <div id="method-M000219" class="method-detail">
        <a name="M000219"></a>

        <div class="method-heading">
          <a href="Response.src/M000219.html" target="Code" class="method-signature"
            onclick="popupCode('Response.src/M000219.html');return false;">
          <span class="method-name">write</span><span class="method-args">(str)</span>
          </a>
        </div>
      
        <div class="method-description">
          <p>
Append to body and update Content-Length.
</p>
<p>
NOTE: Do not mix <a href="Response.html#M000219">write</a> and direct body
access!
</p>
        </div>
      </div>


    </div>


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