Mime.html

---
title: Mime
layout: default
---
<div class="main">
    <div class="banner">
        
            <span>Ruby on Rails 8.0.0</span><br />
        
        <div class="type">Module</div>
        <h1>
            Mime
            
        </h1>
        <ul class="files">
            
            <li><a href="../files/actionpack/lib/action_dispatch/http/mime_type_rb.html">actionpack/lib/action_dispatch/http/mime_type.rb</a></li>
            
            <li><a href="../files/actionpack/lib/action_dispatch/http/mime_types_rb.html">actionpack/lib/action_dispatch/http/mime_types.rb</a></li>
            
            <li><a href="../files/actionpack/lib/action_dispatch/testing/request_encoder_rb.html">actionpack/lib/action_dispatch/testing/request_encoder.rb</a></li>
            
            <li><a href="../files/railties/lib/rails/mailers_controller_rb.html">railties/lib/rails/mailers_controller.rb</a></li>
            
        </ul>
    </div>
    <div id="bodyContent">
        <div id="content">
  

  

  
  


  
    <h2 id="namespace">Namespace</h2>

    

    
      <h3 id="class">Class</h3>
      <ul>
      
        <li><a href="Mime/AllType.html">Mime::AllType</a></li>
      
        <li><a href="Mime/Mimes.html">Mime::Mimes</a></li>
      
        <li><a href="Mime/NullType.html">Mime::NullType</a></li>
      
        <li><a href="Mime/Type.html">Mime::Type</a></li>
      
      </ul>
    
  

  
    <h2 id="methods">Methods</h2>
    <ul>
      
        <li>
          <a href="#method-c-5B-5D">[]</a>
        </li>
      
        <li>
          <a href="#method-c-fetch">fetch</a>
        </li>
      
        <li>
          <a href="#method-c-symbols">symbols</a>
        </li>
      
    </ul>
  

  

  
    

    

    
      <!-- Section constants -->
      <h2 id="constants">Constants</h2>
      <table border='0' cellpadding='5'>
        
          <tr valign='top'>
            <td class="attr-name">ALL</td>
            <td>=</td>
            <td class="attr-value">AllType.instance</td>
          </tr>
          
            <tr valign='top'>
              <td>&nbsp;</td>
              <td colspan="2" class="attr-desc"><p><a href="Mime.html#ALL"><code>ALL</code></a> isn’t a real MIME type, so we don’t register it for lookup with the other concrete types. It’s a wildcard match that we use for <code>respond_to</code> negotiation internals.</p></td>
            </tr>
          
        
          <tr valign='top'>
            <td class="attr-name">EXTENSION_LOOKUP</td>
            <td>=</td>
            <td class="attr-value">{}</td>
          </tr>
          
        
          <tr valign='top'>
            <td class="attr-name">LOOKUP</td>
            <td>=</td>
            <td class="attr-value">{}</td>
          </tr>
          
        
          <tr valign='top'>
            <td class="attr-name">SET</td>
            <td>=</td>
            <td class="attr-value">Mimes.new</td>
          </tr>
          
        
      </table>
    

    

    <!-- Methods -->
    
      <h2 id="class-public-methods">Class Public methods</h2>
      
        <div class="method">
          <h3 id="method-c-5B-5D">
            
              [](type)
            
          </h3>

          
            <div class="description">
              
            </div>
          

          

          

          
          
            <details class="method__source">
              <summary>
                <span class="label">📝 Source code</span>
              </summary>

              <pre><code class="ruby"># File actionpack/lib/action_dispatch/http/mime_type.rb, line 51
    def [](type)
      return type if type.is_a?(Type)
      Type.lookup_by_extension(type)
    end</code></pre>
              
                <a href="https://github.com/rails/rails/blob/dd8f7185faeca6ee968a6e9367f6d8601a83b8db/actionpack/lib/action_dispatch/http/mime_type.rb#L51" target="_blank" class="github_url">🔎 See on GitHub</a>
              
            </details>
          
        </div>
        
        <div class="method">
          <h3 id="method-c-fetch">
            
              fetch(type, &amp;block)
            
          </h3>

          
            <div class="description">
              
            </div>
          

          

          

          
          
            <details class="method__source">
              <summary>
                <span class="label">📝 Source code</span>
              </summary>

              <pre><code class="ruby"># File actionpack/lib/action_dispatch/http/mime_type.rb, line 64
    def fetch(type, &amp;block)
      return type if type.is_a?(Type)
      EXTENSION_LOOKUP.fetch(type.to_s, &amp;block)
    end</code></pre>
              
                <a href="https://github.com/rails/rails/blob/dd8f7185faeca6ee968a6e9367f6d8601a83b8db/actionpack/lib/action_dispatch/http/mime_type.rb#L64" target="_blank" class="github_url">🔎 See on GitHub</a>
              
            </details>
          
        </div>
        
        <div class="method">
          <h3 id="method-c-symbols">
            
              symbols()
            
          </h3>

          
            <div class="description">
              
            </div>
          

          

          

          
          
            <details class="method__source">
              <summary>
                <span class="label">📝 Source code</span>
              </summary>

              <pre><code class="ruby"># File actionpack/lib/action_dispatch/http/mime_type.rb, line 56
    def symbols
      SET.symbols
    end</code></pre>
              
                <a href="https://github.com/rails/rails/blob/dd8f7185faeca6ee968a6e9367f6d8601a83b8db/actionpack/lib/action_dispatch/http/mime_type.rb#L56" target="_blank" class="github_url">🔎 See on GitHub</a>
              
            </details>
          
        </div>
        
      
    
    
  
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    </div>
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