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                <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire8AFResulta">AFResult</a>
              </li>
              <li class="nav-group-task">
                <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire12AdaptHandlera">AdaptHandler</a>
              </li>
              <li class="nav-group-task">
                <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire10Parametersa">Parameters</a>
              </li>
              <li class="nav-group-task">
                <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire12RetryHandlera">RetryHandler</a>
              </li>
            </ul>
          </li>
        </ul>
      </nav>
      <article class="main-content">

        <section class="section">
          <div class="section-content">
            <h1>DataRequest</h1>
              <div class="declaration">
                <div class="language">
                  <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">class</span> <span class="kt">DataRequest</span> <span class="p">:</span> <span class="kt"><a href="../Classes/Request.html">Request</a></span></code></pre>

                </div>
              </div>
            <p><code><a href="../Classes/Request.html">Request</a></code> subclass which handles in-memory <code>Data</code> download using <code>URLSessionDataTask</code>.</p>

          </div>
        </section>

        <section class="section">
          <div class="section-content">
            <div class="task-group">
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC11convertibleAA21URLRequestConvertible_pvp"></a>
                    <a name="//apple_ref/swift/Property/convertible" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC11convertibleAA21URLRequestConvertible_pvp">convertible</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p><code><a href="../Protocols/URLRequestConvertible.html">URLRequestConvertible</a></code> value used to create <code>URLRequest</code>s for this instance.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">let</span> <span class="nv">convertible</span><span class="p">:</span> <span class="kt"><a href="../Protocols/URLRequestConvertible.html">URLRequestConvertible</a></span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC4data10Foundation0B0VSgvp"></a>
                    <a name="//apple_ref/swift/Property/data" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC4data10Foundation0B0VSgvp">data</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p><code>Data</code> read from the server so far.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">data</span><span class="p">:</span> <span class="kt">Data</span><span class="p">?</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC8validateyACXDs6ResultOyyts5Error_pG10Foundation10URLRequestVSg_So17NSHTTPURLResponseCAI0B0VSgtcF"></a>
                    <a name="//apple_ref/swift/Method/validate(_:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC8validateyACXDs6ResultOyyts5Error_pG10Foundation10URLRequestVSg_So17NSHTTPURLResponseCAI0B0VSgtcF">validate(_:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Validates the request, using the specified closure.</p>
<div class="aside aside-note">
    <p class="aside-title">Note</p>
    <p>If validation fails, subsequent calls to response handlers will have an associated error.</p>

</div>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="nf">validate</span><span class="p">(</span><span class="n">_</span> <span class="nv">validation</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="kt"><a href="../Classes/DataRequest.html#/s:9Alamofire11DataRequestC10Validationa">Validation</a></span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>validation</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p><code><a href="../Classes/DataRequest.html#/s:9Alamofire11DataRequestC10Validationa">Validation</a></code> closure used to validate the response.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The instance.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/Default"></a>
                <a name="//apple_ref/swift/Section/Default" class="dashAnchor"></a>
                <a href="#/Default">
                  <h3 class="section-name">Default</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC8response5queue17completionHandlerACXDSo012OS_dispatch_E0C_yAA0B8ResponseVy10Foundation0B0VSgAA7AFErrorOGctF"></a>
                    <a name="//apple_ref/swift/Method/response(queue:completionHandler:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC8response5queue17completionHandlerACXDSo012OS_dispatch_E0C_yAA0B8ResponseVy10Foundation0B0VSgAA7AFErrorOGctF">response(queue:completionHandler:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Adds a handler to be called once the request has finished.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="nf">response</span><span class="p">(</span><span class="nv">queue</span><span class="p">:</span> <span class="kt">DispatchQueue</span> <span class="o">=</span> <span class="o">.</span><span class="n">main</span><span class="p">,</span> <span class="nv">completionHandler</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Typealiases.html#/s:9Alamofire14AFDataResponsea">AFDataResponse</a></span><span class="o">&lt;</span><span class="kt">Data</span><span class="p">?</span><span class="o">&gt;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>queue</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The queue on which the completion handler is dispatched. <code>.main</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>completionHandler</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The code to be executed once the request has finished.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC8response5queue0D10Serializer17completionHandlerACXDSo012OS_dispatch_E0C_xyAA0B8ResponseVy16SerializedObjectQzAA7AFErrorOGctAA0bkF8ProtocolRzlF"></a>
                    <a name="//apple_ref/swift/Method/response(queue:responseSerializer:completionHandler:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC8response5queue0D10Serializer17completionHandlerACXDSo012OS_dispatch_E0C_xyAA0B8ResponseVy16SerializedObjectQzAA7AFErrorOGctAA0bkF8ProtocolRzlF">response(queue:responseSerializer:completionHandler:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Adds a handler to be called once the request has finished.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="n">response</span><span class="o">&lt;</span><span class="kt">Serializer</span><span class="p">:</span> <span class="kt"><a href="../Protocols/DataResponseSerializerProtocol.html">DataResponseSerializerProtocol</a></span><span class="o">&gt;</span><span class="p">(</span><span class="nv">queue</span><span class="p">:</span> <span class="kt">DispatchQueue</span> <span class="o">=</span> <span class="o">.</span><span class="n">main</span><span class="p">,</span>
                                                                 <span class="nv">responseSerializer</span><span class="p">:</span> <span class="kt">Serializer</span><span class="p">,</span>
                                                                 <span class="nv">completionHandler</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Typealiases.html#/s:9Alamofire14AFDataResponsea">AFDataResponse</a></span><span class="o">&lt;</span><span class="kt">Serializer</span><span class="o">.</span><span class="kt">SerializedObject</span><span class="o">&gt;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span>
    <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>queue</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The queue on which the completion handler is dispatched. <code>.main</code> by default</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>responseSerializer</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The response serializer responsible for serializing the request, response, and data.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>completionHandler</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The code to be executed once the request has finished.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/Data"></a>
                <a name="//apple_ref/swift/Section/Data" class="dashAnchor"></a>
                <a href="#/Data">
                  <h3 class="section-name">Data</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC08responseB05queue17completionHandlerACXDSo012OS_dispatch_E0C_yAA0B8ResponseVy10Foundation0B0VAA7AFErrorOGctF"></a>
                    <a name="//apple_ref/swift/Method/responseData(queue:completionHandler:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC08responseB05queue17completionHandlerACXDSo012OS_dispatch_E0C_yAA0B8ResponseVy10Foundation0B0VAA7AFErrorOGctF">responseData(queue:completionHandler:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Adds a handler to be called once the request has finished.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="nf">responseData</span><span class="p">(</span><span class="nv">queue</span><span class="p">:</span> <span class="kt">DispatchQueue</span> <span class="o">=</span> <span class="o">.</span><span class="n">main</span><span class="p">,</span>
                         <span class="nv">completionHandler</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Typealiases.html#/s:9Alamofire14AFDataResponsea">AFDataResponse</a></span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span>
    <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>queue</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The queue on which the completion handler is dispatched. <code>.main</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>completionHandler</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The code to be executed once the request has finished.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/String"></a>
                <a name="//apple_ref/swift/Section/String" class="dashAnchor"></a>
                <a href="#/String">
                  <h3 class="section-name">String</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC14responseString5queue8encoding17completionHandlerACXDSo012OS_dispatch_F0C_SS10FoundationE8EncodingVSgyAA0B8ResponseVySSAA7AFErrorOGctF"></a>
                    <a name="//apple_ref/swift/Method/responseString(queue:encoding:completionHandler:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC14responseString5queue8encoding17completionHandlerACXDSo012OS_dispatch_F0C_SS10FoundationE8EncodingVSgyAA0B8ResponseVySSAA7AFErrorOGctF">responseString(queue:encoding:completionHandler:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Adds a handler to be called once the request has finished.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="nf">responseString</span><span class="p">(</span><span class="nv">queue</span><span class="p">:</span> <span class="kt">DispatchQueue</span> <span class="o">=</span> <span class="o">.</span><span class="n">main</span><span class="p">,</span>
                           <span class="nv">encoding</span><span class="p">:</span> <span class="kt">String</span><span class="o">.</span><span class="kt">Encoding</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span>
                           <span class="nv">completionHandler</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Typealiases.html#/s:9Alamofire14AFDataResponsea">AFDataResponse</a></span><span class="o">&lt;</span><span class="kt">String</span><span class="o">&gt;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>queue</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The queue on which the completion handler is dispatched. <code>.main</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>encoding</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The string encoding. Defaults to <code>nil</code>, in which case the encoding will be determined from
               the server response, falling back to the default HTTP character set, <code>ISO-8859-1</code>.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>completionHandler</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>A closure to be executed once the request has finished.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/JSON"></a>
                <a name="//apple_ref/swift/Section/JSON" class="dashAnchor"></a>
                <a href="#/JSON">
                  <h3 class="section-name">JSON</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC12responseJSON5queue7options17completionHandlerACXDSo012OS_dispatch_F0C_So20NSJSONReadingOptionsVyAA0B8ResponseVyypAA7AFErrorOGctF"></a>
                    <a name="//apple_ref/swift/Method/responseJSON(queue:options:completionHandler:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC12responseJSON5queue7options17completionHandlerACXDSo012OS_dispatch_F0C_So20NSJSONReadingOptionsVyAA0B8ResponseVyypAA7AFErrorOGctF">responseJSON(queue:options:completionHandler:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Adds a handler to be called once the request has finished.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="nf">responseJSON</span><span class="p">(</span><span class="nv">queue</span><span class="p">:</span> <span class="kt">DispatchQueue</span> <span class="o">=</span> <span class="o">.</span><span class="n">main</span><span class="p">,</span>
                         <span class="nv">options</span><span class="p">:</span> <span class="kt">JSONSerialization</span><span class="o">.</span><span class="kt">ReadingOptions</span> <span class="o">=</span> <span class="o">.</span><span class="n">allowFragments</span><span class="p">,</span>
                         <span class="nv">completionHandler</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Typealiases.html#/s:9Alamofire14AFDataResponsea">AFDataResponse</a></span><span class="o">&lt;</span><span class="kt">Any</span><span class="o">&gt;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>queue</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The queue on which the completion handler is dispatched. <code>.main</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>options</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The JSON serialization reading options. <code>.allowFragments</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>completionHandler</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>A closure to be executed once the request has finished.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/Decodable"></a>
                <a name="//apple_ref/swift/Section/Decodable" class="dashAnchor"></a>
                <a href="#/Decodable">
                  <h3 class="section-name">Decodable</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC17responseDecodable2of5queue7decoder17completionHandlerACXDxm_So012OS_dispatch_G0CAA0B7Decoder_pyAA0B8ResponseVyxAA7AFErrorOGctSeRzlF"></a>
                    <a name="//apple_ref/swift/Method/responseDecodable(of:queue:decoder:completionHandler:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC17responseDecodable2of5queue7decoder17completionHandlerACXDxm_So012OS_dispatch_G0CAA0B7Decoder_pyAA0B8ResponseVyxAA7AFErrorOGctSeRzlF">responseDecodable(of:queue:decoder:completionHandler:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Adds a handler to be called once the request has finished.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="n">responseDecodable</span><span class="o">&lt;</span><span class="kt">T</span><span class="p">:</span> <span class="kt">Decodable</span><span class="o">&gt;</span><span class="p">(</span><span class="n">of</span> <span class="nv">type</span><span class="p">:</span> <span class="kt">T</span><span class="o">.</span><span class="k">Type</span> <span class="o">=</span> <span class="kt">T</span><span class="o">.</span><span class="k">self</span><span class="p">,</span>
                                            <span class="nv">queue</span><span class="p">:</span> <span class="kt">DispatchQueue</span> <span class="o">=</span> <span class="o">.</span><span class="n">main</span><span class="p">,</span>
                                            <span class="nv">decoder</span><span class="p">:</span> <span class="kt"><a href="../Protocols/DataDecoder.html">DataDecoder</a></span> <span class="o">=</span> <span class="kt">JSONDecoder</span><span class="p">(),</span>
                                            <span class="nv">completionHandler</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Typealiases.html#/s:9Alamofire14AFDataResponsea">AFDataResponse</a></span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>type</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p><code>Decodable</code> type to decode from response data.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>queue</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The queue on which the completion handler is dispatched. <code>.main</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>decoder</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p><code><a href="../Protocols/DataDecoder.html">DataDecoder</a></code> to use to decode the response. <code>JSONDecoder()</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>completionHandler</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>A closure to be executed once the request has finished.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC10Validationa"></a>
                    <a name="//apple_ref/swift/Alias/Validation" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC10Validationa">Validation</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>A closure used to validate a request that takes a URL request, a URL response and data, and returns whether the
request was valid.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">typealias</span> <span class="kt">Validation</span> <span class="o">=</span> <span class="p">(</span><span class="kt">URLRequest</span><span class="p">?,</span> <span class="kt">HTTPURLResponse</span><span class="p">,</span> <span class="kt">Data</span><span class="p">?)</span> <span class="o">-&gt;</span> <span class="kt">ValidationResult</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC8validate10statusCodeACXDx_tSTRzSi7ElementRtzlF"></a>
                    <a name="//apple_ref/swift/Method/validate(statusCode:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC8validate10statusCodeACXDx_tSTRzSi7ElementRtzlF">validate(statusCode:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Validates that the response has a status code in the specified sequence.</p>

<p>If validation fails, subsequent calls to response handlers will have an associated error.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="n">validate</span><span class="o">&lt;</span><span class="kt">S</span><span class="o">&gt;</span><span class="p">(</span><span class="n">statusCode</span> <span class="nv">acceptableStatusCodes</span><span class="p">:</span> <span class="kt">S</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span> <span class="k">where</span> <span class="kt">S</span> <span class="p">:</span> <span class="kt">Sequence</span><span class="p">,</span> <span class="kt">S</span><span class="o">.</span><span class="kt">Element</span> <span class="o">==</span> <span class="kt">Int</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>range</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The range of acceptable status codes.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC8validate11contentTypeACXDxyXA_tSTRzSS7ElementRtzlF"></a>
                    <a name="//apple_ref/swift/Method/validate(contentType:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC8validate11contentTypeACXDxyXA_tSTRzSS7ElementRtzlF">validate(contentType:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Validates that the response has a content type in the specified sequence.</p>

<p>If validation fails, subsequent calls to response handlers will have an associated error.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="n">validate</span><span class="o">&lt;</span><span class="kt">S</span><span class="p">:</span> <span class="kt">Sequence</span><span class="o">&gt;</span><span class="p">(</span><span class="n">contentType</span> <span class="nv">acceptableContentTypes</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="kd">@autoclosure</span> <span class="p">()</span> <span class="o">-&gt;</span> <span class="kt">S</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span> <span class="k">where</span> <span class="kt">S</span><span class="o">.</span><span class="kt">Iterator</span><span class="o">.</span><span class="kt">Element</span> <span class="o">==</span> <span class="kt">String</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>contentType</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The acceptable content types, which may specify wildcard types and/or subtypes.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11DataRequestC8validateACXDyF"></a>
                    <a name="//apple_ref/swift/Method/validate()" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11DataRequestC8validateACXDyF">validate()</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Validates that the response has a status code in the default acceptable range of 200&hellip;299, and that the content
type matches any specified in the Accept HTTP header field.</p>

<p>If validation fails, subsequent calls to response handlers will have an associated error.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">public</span> <span class="kd">func</span> <span class="nf">validate</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The request.</p>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
          </div>
        </section>

      </article>
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