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Request Class Reference
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<article class="chapter">
<a name="/"></a>
<h1 class="chapter-name">Request</h1>
<section>
<section class="section">
<p class="para">Responsible for sending a request and receiving the response and associated data from the server, as well as managing its underlying <code>NSURLSessionTask</code>.</p>
</section>
<section class="section task-group-section">
<div class="task-group">
<div class="task-name-container">
<a name="/Unnamed"></a>
</div>
<ul class="task-group-list">
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:C15PredictionIOSDK7Request10Serializer">
<a name="//apple_ref/swift/Alias/Serializer" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:C15PredictionIOSDK7Request10Serializer">Serializer</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">A closure used by response handlers that takes a request, response, and data and returns a serialized object and any error that occured in the process.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">typealias</span> <span class="kt">Serializer</span> <span class="o">=</span> <span class="p">(</span><span class="kt">NSURLRequest</span><span class="p">,</span> <span class="kt">NSHTTPURLResponse</span><span class="p">?,</span> <span class="kt">NSData</span><span class="p">?)</span> <span class="o">-&gt;</span> <span class="p">(</span><span class="kt">AnyObject</span><span class="p">?,</span> <span class="kt">NSError</span><span class="p">?)</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:vC15PredictionIOSDK7Request4taskCSo16NSURLSessionTask">
<a name="//apple_ref/swift/Property/task" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:vC15PredictionIOSDK7Request4taskCSo16NSURLSessionTask">task</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">The underlying task.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="k">var</span> <span class="nv">task</span><span class="p">:</span> <span class="kt">NSURLSessionTask</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:vC15PredictionIOSDK7Request7sessionCSo12NSURLSession">
<a name="//apple_ref/swift/Property/session" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:vC15PredictionIOSDK7Request7sessionCSo12NSURLSession">session</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">The session belonging to the underlying task.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="k">let</span> <span class="nv">session</span><span class="p">:</span> <span class="kt">NSURLSession</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:vC15PredictionIOSDK7Request7requestCSo12NSURLRequest">
<a name="//apple_ref/swift/Property/request" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:vC15PredictionIOSDK7Request7requestCSo12NSURLRequest">request</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">The request sent or to be sent to the server.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="k">var</span> <span class="nv">request</span><span class="p">:</span> <span class="kt">NSURLRequest</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:vC15PredictionIOSDK7Request8responseGSqCSo17NSHTTPURLResponse_">
<a name="//apple_ref/swift/Property/response" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:vC15PredictionIOSDK7Request8responseGSqCSo17NSHTTPURLResponse_">response</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">The response received from the server, if any.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="k">var</span> <span class="nv">response</span><span class="p">:</span> <span class="kt">NSHTTPURLResponse</span><span class="p">?</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:vC15PredictionIOSDK7Request8progressGSqCSo10NSProgress_">
<a name="//apple_ref/swift/Property/progress" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:vC15PredictionIOSDK7Request8progressGSqCSo10NSProgress_">progress</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">The progress of the request lifecycle.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="k">var</span> <span class="nv">progress</span><span class="p">:</span> <span class="kt">NSProgress</span><span class="p">?</span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<div class="task-name-container">
<a name="/Authentication"></a>
<a name="//apple_ref/swift/Section/Authentication" class="dashAnchor"></a>
<a href="#/Authentication">
<h3 class="section-name">Authentication</h3>
</a>
</div>
<ul class="task-group-list">
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request12authenticateFDS0_FT4userSS8passwordSS_DS0_">
<a name="//apple_ref/swift/Method/authenticate(user:password:)" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request12authenticateFDS0_FT4userSS8passwordSS_DS0_">authenticate(user:password:)</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Associates an HTTP Basic credential with the request.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">authenticate</span><span class="p">(</span><span class="nv">#user</span><span class="p">:</span> <span class="kt">String</span><span class="p">,</span> <span class="nv">password</span><span class="p">:</span> <span class="kt">String</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>
</div>
</div>
<div class="parameters">
<h4>Parameters</h4>
<table class="graybox" border="0" cellspacing="0" cellpadding="5">
<tbody>
<tr>
<td scope="row">
<code>
<em class="term">user</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The user.</p>
</div>
</td>
</tr>
<tr>
<td scope="row">
<code>
<em class="term">password</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The password.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="result-description">
<h4>Return Value</h4>
<p class="para">The request.</p>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request12authenticateFDS0_FT15usingCredentialCSo15NSURLCredential_DS0_">
<a name="//apple_ref/swift/Method/authenticate(usingCredential:)" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request12authenticateFDS0_FT15usingCredentialCSo15NSURLCredential_DS0_">authenticate(usingCredential:)</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Associates a specified credential with the request.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">authenticate</span><span class="p">(</span><span class="n">usingCredential</span> <span class="nv">credential</span><span class="p">:</span> <span class="kt">NSURLCredential</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>
</div>
</div>
<div class="parameters">
<h4>Parameters</h4>
<table class="graybox" border="0" cellspacing="0" cellpadding="5">
<tbody>
<tr>
<td scope="row">
<code>
<em class="term">credential</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The credential.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="result-description">
<h4>Return Value</h4>
<p class="para">The request.</p>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<div class="task-name-container">
<a name="/Progress"></a>
<a name="//apple_ref/swift/Section/Progress" class="dashAnchor"></a>
<a href="#/Progress">
<h3 class="section-name">Progress</h3>
</a>
</div>
<ul class="task-group-list">
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request8progressFDS0_FT7closureGSqFTVSs5Int64S1_S1__T___DS0_">
<a name="//apple_ref/swift/Method/progress(closure:)" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request8progressFDS0_FT7closureGSqFTVSs5Int64S1_S1__T___DS0_">progress(closure:)</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Sets a closure to be called periodically during the lifecycle of the request as data is written to or read from the server.<ul><li>For uploads, the progress closure returns the bytes written, total bytes written, and total bytes expected to write.</li><li>For downloads, the progress closure returns the bytes read, total bytes read, and total bytes expected to write.</li></ul></p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">progress</span><span class="p">(</span><span class="nv">closure</span><span class="p">:</span> <span class="p">((</span><span class="kt">Int64</span><span class="p">,</span> <span class="kt">Int64</span><span class="p">,</span> <span class="kt">Int64</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span></code></pre>
</div>
</div>
<div class="parameters">
<h4>Parameters</h4>
<table class="graybox" border="0" cellspacing="0" cellpadding="5">
<tbody>
<tr>
<td scope="row">
<code>
<em class="term">closure</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The code to be executed periodically during the lifecycle of the request.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="result-description">
<h4>Return Value</h4>
<p class="para">The request.</p>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<div class="task-name-container">
<a name="/Response"></a>
<a name="//apple_ref/swift/Section/Response" class="dashAnchor"></a>
<a href="#/Response">
<h3 class="section-name">Response</h3>
</a>
</div>
<ul class="task-group-list">
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request22responseDataSerializerFMS0_FT_FTCSo12NSURLRequestGSqCSo17NSHTTPURLResponse_GSqCSo6NSData__TGSqPSs9AnyObject__GSqCSo7NSError__">
<a name="//apple_ref/swift/Method/responseDataSerializer()" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request22responseDataSerializerFMS0_FT_FTCSo12NSURLRequestGSqCSo17NSHTTPURLResponse_GSqCSo6NSData__TGSqPSs9AnyObject__GSqCSo7NSError__">responseDataSerializer()</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Creates a response serializer that returns the associated data as-is.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">class</span> <span class="kd">func</span> <span class="nf">responseDataSerializer</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="kt">Serializer</span></code></pre>
</div>
</div>
<div class="result-description">
<h4>Return Value</h4>
<p class="para">A data response serializer.</p>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request8responseFDS0_FFTCSo12NSURLRequestGSqCSo17NSHTTPURLResponse_GSqPSs9AnyObject__GSqCSo7NSError__T_DS0_">
<a name="//apple_ref/swift/Method/response(_:)" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request8responseFDS0_FFTCSo12NSURLRequestGSqCSo17NSHTTPURLResponse_GSqPSs9AnyObject__GSqCSo7NSError__T_DS0_">response(_:)</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Adds a handler to be called once the request has finished.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">response</span><span class="p">(</span><span class="nv">completionHandler</span><span class="p">:</span> <span class="p">(</span><span class="kt">NSURLRequest</span><span class="p">,</span> <span class="kt">NSHTTPURLResponse</span><span class="p">?,</span> <span class="kt">AnyObject</span><span class="p">?,</span> <span class="kt">NSError</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 class="parameters">
<h4>Parameters</h4>
<table class="graybox" border="0" cellspacing="0" cellpadding="5">
<tbody>
<tr>
<td scope="row">
<code>
<em class="term">completionHandler</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The code to be executed once the request has finished.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="result-description">
<h4>Return Value</h4>
<p class="para">The request.</p>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request8responseFDS0_FT5queueGSqCSo8NSObject_10serializerFTCSo12NSURLRequestGSqCSo17NSHTTPURLResponse_GSqCSo6NSData__TGSqPSs9AnyObject__GSqCSo7NSError__17completionHandlerFTS2_GSqS3__GSqPS5___GSqS6___T__DS0_">
<a name="//apple_ref/swift/Method/response(queue:serializer:completionHandler:)" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request8responseFDS0_FT5queueGSqCSo8NSObject_10serializerFTCSo12NSURLRequestGSqCSo17NSHTTPURLResponse_GSqCSo6NSData__TGSqPSs9AnyObject__GSqCSo7NSError__17completionHandlerFTS2_GSqS3__GSqPS5___GSqS6___T__DS0_">response(queue:serializer:completionHandler:)</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Adds a handler to be called once the request has finished.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><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="n">dispatch_queue_t</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span> <span class="nv">serializer</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="p">(</span><span class="kt">NSURLRequest</span><span class="p">,</span> <span class="kt">NSHTTPURLResponse</span><span class="p">?,</span> <span class="kt">AnyObject</span><span class="p">?,</span> <span class="kt">NSError</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 class="parameters">
<h4>Parameters</h4>
<table class="graybox" border="0" cellspacing="0" cellpadding="5">
<tbody>
<tr>
<td scope="row">
<code>
<em class="term">queue</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The queue on which the completion handler is dispatched.</p>
</div>
</td>
</tr>
<tr>
<td scope="row">
<code>
<em class="term">serializer</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The closure responsible for serializing the request, response, and data.</p>
</div>
</td>
</tr>
<tr>
<td scope="row">
<code>
<em class="term">completionHandler</em>
</code>
</td>
<td>
<div class="definition">
<p class="para">The code to be executed once the request has finished.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="result-description">
<h4>Return Value</h4>
<p class="para">The request.</p>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request7suspendFS0_FT_T_">
<a name="//apple_ref/swift/Method/suspend()" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request7suspendFS0_FT_T_">suspend()</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Suspends the request.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">suspend</span><span class="p">()</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request6resumeFS0_FT_T_">
<a name="//apple_ref/swift/Method/resume()" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request6resumeFS0_FT_T_">resume()</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Resumes the request.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">resume</span><span class="p">()</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:FC15PredictionIOSDK7Request6cancelFS0_FT_T_">
<a name="//apple_ref/swift/Method/cancel()" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:FC15PredictionIOSDK7Request6cancelFS0_FT_T_">cancel()</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Cancels the request.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="Swift">
<p class="aside-title">Swift</p>
<pre class="highlight"><code><span class="kd">func</span> <span class="nf">cancel</span><span class="p">()</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:CC15PredictionIOSDK7Request12TaskDelegate">
<a name="//apple_ref/swift/Class/TaskDelegate" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:CC15PredictionIOSDK7Request12TaskDelegate">TaskDelegate</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Undocumented</p>
<a href="../Classes/Request/TaskDelegate.html" class="see-more">See more</a>
</div>
</section>
</div>
</li>
<li class="item symbol">
<div class="task-group-term">
<code>
<a name="/s:CC15PredictionIOSDK7Request16DataTaskDelegate">
<a name="//apple_ref/swift/Class/DataTaskDelegate" class="dashAnchor"></a>
<a class="x-instance-method Swift" href="#/s:CC15PredictionIOSDK7Request16DataTaskDelegate">DataTaskDelegate</a>
</code>
</div>
<div class="height-container">
<div class="pointy-thing-container"></div>
<section class="section instance-method">
<div class="pointy-thing"></div>
<div class="abstract">
<p class="para">Undocumented</p>
<a href="../Classes/Request/DataTaskDelegate.html" class="see-more">See more</a>
</div>
</section>
</div>
</li>
</ul>
</div>
</section>
</section>
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<p class="copyright">&copy; 2015 <a class="link" href="" target="_blank" rel="external"></a>. All rights reserved. (Last updated: 2015-02-24)</p>
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