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      <article class="main-content">

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            <h1>RetryPolicy</h1>
              <div class="declaration">
                <div class="language">
                  <pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">RetryPolicy</span> <span class="p">:</span> <span class="kt"><a href="../Protocols/RequestInterceptor.html">RequestInterceptor</a></span></code></pre>

                </div>
              </div>
            <p>A retry policy that retries requests using an exponential backoff for allowed HTTP methods and HTTP status codes
as well as certain types of networking errors.</p>

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        </section>

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                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC07defaultB5LimitSuvpZ"></a>
                    <a name="//apple_ref/swift/Variable/defaultRetryLimit" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC07defaultB5LimitSuvpZ">defaultRetryLimit</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The default retry limit for retry policies.</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">static</span> <span class="k">let</span> <span class="nv">defaultRetryLimit</span><span class="p">:</span> <span class="kt">UInt</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC29defaultExponentialBackoffBaseSuvpZ"></a>
                    <a name="//apple_ref/swift/Variable/defaultExponentialBackoffBase" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC29defaultExponentialBackoffBaseSuvpZ">defaultExponentialBackoffBase</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The default exponential backoff base for retry policies (must be a minimum of 2).</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">static</span> <span class="k">let</span> <span class="nv">defaultExponentialBackoffBase</span><span class="p">:</span> <span class="kt">UInt</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC30defaultExponentialBackoffScaleSdvpZ"></a>
                    <a name="//apple_ref/swift/Variable/defaultExponentialBackoffScale" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC30defaultExponentialBackoffScaleSdvpZ">defaultExponentialBackoffScale</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The default exponential backoff scale for retry policies.</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">static</span> <span class="k">let</span> <span class="nv">defaultExponentialBackoffScale</span><span class="p">:</span> <span class="kt">Double</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC27defaultRetryableHTTPMethodsShyAA10HTTPMethodVGvpZ"></a>
                    <a name="//apple_ref/swift/Variable/defaultRetryableHTTPMethods" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC27defaultRetryableHTTPMethodsShyAA10HTTPMethodVGvpZ">defaultRetryableHTTPMethods</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The default HTTP methods to retry.
See <a href="https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html">RFC 2616 - Section 9.1.2</a> for more information.</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">static</span> <span class="k">let</span> <span class="nv">defaultRetryableHTTPMethods</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt"><a href="../Structs/HTTPMethod.html">HTTPMethod</a></span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC31defaultRetryableHTTPStatusCodesShySiGvpZ"></a>
                    <a name="//apple_ref/swift/Variable/defaultRetryableHTTPStatusCodes" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC31defaultRetryableHTTPStatusCodesShySiGvpZ">defaultRetryableHTTPStatusCodes</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The default HTTP status codes to retry.
See <a href="https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10">RFC 2616 - Section 10</a> for more information.</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">static</span> <span class="k">let</span> <span class="nv">defaultRetryableHTTPStatusCodes</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt">Int</span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC29defaultRetryableURLErrorCodesShy10Foundation0F0V4CodeVGvpZ"></a>
                    <a name="//apple_ref/swift/Variable/defaultRetryableURLErrorCodes" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC29defaultRetryableURLErrorCodesShy10Foundation0F0V4CodeVGvpZ">defaultRetryableURLErrorCodes</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The default URL error codes to retry.</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">static</span> <span class="k">let</span> <span class="nv">defaultRetryableURLErrorCodes</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt">URLError</span><span class="o">.</span><span class="kt">Code</span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC10retryLimitSuvp"></a>
                    <a name="//apple_ref/swift/Property/retryLimit" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC10retryLimitSuvp">retryLimit</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The total number of times the request is allowed to be retried.</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">retryLimit</span><span class="p">:</span> <span class="kt">UInt</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC22exponentialBackoffBaseSuvp"></a>
                    <a name="//apple_ref/swift/Property/exponentialBackoffBase" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC22exponentialBackoffBaseSuvp">exponentialBackoffBase</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The base of the exponential backoff policy (should always be greater than or equal to 2).</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">exponentialBackoffBase</span><span class="p">:</span> <span class="kt">UInt</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC23exponentialBackoffScaleSdvp"></a>
                    <a name="//apple_ref/swift/Property/exponentialBackoffScale" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC23exponentialBackoffScaleSdvp">exponentialBackoffScale</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The scale of the exponential backoff.</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">exponentialBackoffScale</span><span class="p">:</span> <span class="kt">Double</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC20retryableHTTPMethodsShyAA10HTTPMethodVGvp"></a>
                    <a name="//apple_ref/swift/Property/retryableHTTPMethods" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC20retryableHTTPMethodsShyAA10HTTPMethodVGvp">retryableHTTPMethods</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The HTTP methods that are allowed to be retried.</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">retryableHTTPMethods</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt"><a href="../Structs/HTTPMethod.html">HTTPMethod</a></span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC24retryableHTTPStatusCodesShySiGvp"></a>
                    <a name="//apple_ref/swift/Property/retryableHTTPStatusCodes" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC24retryableHTTPStatusCodesShySiGvp">retryableHTTPStatusCodes</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The HTTP status codes that are automatically retried by the policy.</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">retryableHTTPStatusCodes</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt">Int</span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC22retryableURLErrorCodesShy10Foundation0E0V4CodeVGvp"></a>
                    <a name="//apple_ref/swift/Property/retryableURLErrorCodes" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC22retryableURLErrorCodesShy10Foundation0E0V4CodeVGvp">retryableURLErrorCodes</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The URL error codes that are automatically retried by the policy.</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">retryableURLErrorCodes</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt">URLError</span><span class="o">.</span><span class="kt">Code</span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire11RetryPolicyC10retryLimit22exponentialBackoffBase0fG5Scale20retryableHTTPMethods0J15HTTPStatusCodes0j8URLErrorM0ACSu_SuSdShyAA10HTTPMethodVGShySiGShy10Foundation0N0V4CodeVGtcfc"></a>
                    <a name="//apple_ref/swift/Method/init(retryLimit:exponentialBackoffBase:exponentialBackoffScale:retryableHTTPMethods:retryableHTTPStatusCodes:retryableURLErrorCodes:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire11RetryPolicyC10retryLimit22exponentialBackoffBase0fG5Scale20retryableHTTPMethods0J15HTTPStatusCodes0j8URLErrorM0ACSu_SuSdShyAA10HTTPMethodVGShySiGShy10Foundation0N0V4CodeVGtcfc">init(retryLimit:exponentialBackoffBase:exponentialBackoffScale:retryableHTTPMethods:retryableHTTPStatusCodes:retryableURLErrorCodes:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Creates an <code>ExponentialBackoffRetryPolicy</code> from the specified parameters.</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="nf">init</span><span class="p">(</span><span class="nv">retryLimit</span><span class="p">:</span> <span class="kt">UInt</span> <span class="o">=</span> <span class="kt">RetryPolicy</span><span class="o">.</span><span class="n"><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC07defaultB5LimitSuvpZ">defaultRetryLimit</a></span><span class="p">,</span>
            <span class="nv">exponentialBackoffBase</span><span class="p">:</span> <span class="kt">UInt</span> <span class="o">=</span> <span class="kt">RetryPolicy</span><span class="o">.</span><span class="n"><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC29defaultExponentialBackoffBaseSuvpZ">defaultExponentialBackoffBase</a></span><span class="p">,</span>
            <span class="nv">exponentialBackoffScale</span><span class="p">:</span> <span class="kt">Double</span> <span class="o">=</span> <span class="kt">RetryPolicy</span><span class="o">.</span><span class="n"><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC30defaultExponentialBackoffScaleSdvpZ">defaultExponentialBackoffScale</a></span><span class="p">,</span>
            <span class="nv">retryableHTTPMethods</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt"><a href="../Structs/HTTPMethod.html">HTTPMethod</a></span><span class="o">&gt;</span> <span class="o">=</span> <span class="kt">RetryPolicy</span><span class="o">.</span><span class="n"><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC27defaultRetryableHTTPMethodsShyAA10HTTPMethodVGvpZ">defaultRetryableHTTPMethods</a></span><span class="p">,</span>
            <span class="nv">retryableHTTPStatusCodes</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt">Int</span><span class="o">&gt;</span> <span class="o">=</span> <span class="kt">RetryPolicy</span><span class="o">.</span><span class="n"><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC31defaultRetryableHTTPStatusCodesShySiGvpZ">defaultRetryableHTTPStatusCodes</a></span><span class="p">,</span>
            <span class="nv">retryableURLErrorCodes</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt">URLError</span><span class="o">.</span><span class="kt">Code</span><span class="o">&gt;</span> <span class="o">=</span> <span class="kt">RetryPolicy</span><span class="o">.</span><span class="n"><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC29defaultRetryableURLErrorCodesShy10Foundation0F0V4CodeVGvpZ">defaultRetryableURLErrorCodes</a></span><span class="p">)</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>retryLimit</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The total number of times the request is allowed to be retried. <code>2</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>exponentialBackoffBase</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The base of the exponential backoff policy. <code>2</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>exponentialBackoffScale</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The scale of the exponential backoff. <code>0.5</code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>retryableHTTPMethods</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The HTTP methods that are allowed to be retried.
                      <code><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC27defaultRetryableHTTPMethodsShyAA10HTTPMethodVGvpZ">RetryPolicy.defaultRetryableHTTPMethods</a></code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>retryableHTTPStatusCodes</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The HTTP status codes that are automatically retried by the policy.
                      <code><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC31defaultRetryableHTTPStatusCodesShySiGvpZ">RetryPolicy.defaultRetryableHTTPStatusCodes</a></code> by default.</p>
                                </div>
                              </td>
                            </tr>
                            <tr>
                              <td>
                                <code>
                                <em>retryableURLErrorCodes</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The URL error codes that are automatically retried by the policy.
                      <code><a href="../Classes/RetryPolicy.html#/s:9Alamofire11RetryPolicyC29defaultRetryableURLErrorCodesShy10Foundation0F0V4CodeVGvpZ">RetryPolicy.defaultRetryableURLErrorCodes</a></code> by default.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire14RequestRetrierP5retry_3for5dueTo10completionyAA0B0C_AA7SessionCs5Error_pyAA11RetryResultOctF"></a>
                    <a name="//apple_ref/swift/Method/retry(_:for:dueTo:completion:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire14RequestRetrierP5retry_3for5dueTo10completionyAA0B0C_AA7SessionCs5Error_pyAA11RetryResultOctF">retry(_:for:dueTo:completion:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        
                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">func</span> <span class="nf">retry</span><span class="p">(</span><span class="n">_</span> <span class="nv">request</span><span class="p">:</span> <span class="kt"><a href="../Classes/Request.html">Request</a></span><span class="p">,</span>
                <span class="k">for</span> <span class="nv">session</span><span class="p">:</span> <span class="kt"><a href="../Classes/Session.html">Session</a></span><span class="p">,</span>
                <span class="n">dueTo</span> <span class="nv">error</span><span class="p">:</span> <span class="kt">Error</span><span class="p">,</span>
                <span class="nv">completion</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt"><a href="../Enums/RetryResult.html">RetryResult</a></span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
          </div>
        </section>

      </article>
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