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Result.html

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  1. <!DOCTYPE html>
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  4.     <title>Result Enumeration Reference</title>
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  51.       <a class="breadcrumb" href="../index.html">Alamofire Reference</a>
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  53.       Result Enumeration Reference
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  66.                 <a class="nav-group-task-link" href="../Classes/DownloadRequest.html">DownloadRequest</a>
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  67.               </li>
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  68.               <li class="nav-group-task">
    69. 

  69.                 <a class="nav-group-task-link" href="../Classes/DownloadRequest/DownloadOptions.html">– DownloadOptions</a>
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  72.                 <a class="nav-group-task-link" href="../Classes/MultipartFormData.html">MultipartFormData</a>
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  78.                 <a class="nav-group-task-link" href="../Classes/NetworkReachabilityManager/NetworkReachabilityStatus.html">– NetworkReachabilityStatus</a>
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  81.                 <a class="nav-group-task-link" href="../Classes/NetworkReachabilityManager/ConnectionType.html">– ConnectionType</a>
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  84.                 <a class="nav-group-task-link" href="../Classes/Request.html">Request</a>
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  86.               <li class="nav-group-task">
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  87.                 <a class="nav-group-task-link" href="../Classes/Request/ValidationResult.html">– ValidationResult</a>
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  99.                 <a class="nav-group-task-link" href="../Classes/SessionManager/MultipartFormDataEncodingResult.html">– MultipartFormDataEncodingResult</a>
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  102.                 <a class="nav-group-task-link" href="../Classes.html#/s:9Alamofire13StreamRequestC">StreamRequest</a>
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  119.                 <a class="nav-group-task-link" href="../Enums/AFError/ParameterEncodingFailureReason.html">– ParameterEncodingFailureReason</a>
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  122.                 <a class="nav-group-task-link" href="../Enums/AFError/MultipartEncodingFailureReason.html">– MultipartEncodingFailureReason</a>
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  125.                 <a class="nav-group-task-link" href="../Enums/AFError/ResponseValidationFailureReason.html">– ResponseValidationFailureReason</a>
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  127.               <li class="nav-group-task">
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  128.                 <a class="nav-group-task-link" href="../Enums/AFError/ResponseSerializationFailureReason.html">– ResponseSerializationFailureReason</a>
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  147.               <li class="nav-group-task">
    148. 

  148.                 <a class="nav-group-task-link" href="../Extensions/Notification/Name.html">– Name</a>
    149. 

  149.               </li>
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  150.               <li class="nav-group-task">
    151. 

  151.                 <a class="nav-group-task-link" href="../Extensions/Notification/Key.html">– Key</a>
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  163.                 <a class="nav-group-task-link" href="../Extensions/URLRequest.html">URLRequest</a>
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    171. 

  171.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire2eeoiySbAA26NetworkReachabilityManagerC0cD6StatusO_AFtF">==(_:_:)</a>
    172. 

  172.               </li>
    173. 

  173.               <li class="nav-group-task">
    174. 

  174.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire8download_6method10parameters8encoding7headers2toAA15DownloadRequestCAA14URLConvertible_p_AA10HTTPMethodOSDySSypGSgAA17ParameterEncoding_pSDyS2SGSg10Foundation3URLV011destinationO0_AI0H7OptionsV7optionstAT_So17NSHTTPURLResponseCtcSgtF">download(_:method:parameters:encoding:headers:to:)</a>
    175. 

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    176. 

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    177. 

  177.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire8download_2toAA15DownloadRequestCAA21URLRequestConvertible_p_10Foundation3URLV011destinationI0_AE0D7OptionsV7optionstAI_So17NSHTTPURLResponseCtcSgtF">download(_:to:)</a>
    178. 

  178.               </li>
    179. 

  179.               <li class="nav-group-task">
    180. 

  180.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire8download12resumingWith2toAA15DownloadRequestC10Foundation4DataV_AG3URLV011destinationJ0_AF0F7OptionsV7optionstAK_So17NSHTTPURLResponseCtcSgtF">download(resumingWith:to:)</a>
    181. 

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    182. 

  182.               <li class="nav-group-task">
    183. 

  183.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire7requestyAA11DataRequestCAA21URLRequestConvertible_pF">request(_:)</a>
    184. 

  184.               </li>
    185. 

  185.               <li class="nav-group-task">
    186. 

  186.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire7request_6method10parameters8encoding7headersAA11DataRequestCAA14URLConvertible_p_AA10HTTPMethodOSDySSypGSgAA17ParameterEncoding_pSDyS2SGSgtF">request(_:method:parameters:encoding:headers:)</a>
    187. 

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    188. 

  188.               <li class="nav-group-task">
    189. 

  189.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6stream4withAA13StreamRequestCSo12NSNetServiceC_tF">stream(with:)</a>
    190. 

  190.               </li>
    191. 

  191.               <li class="nav-group-task">
    192. 

  192.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6stream12withHostName4portAA13StreamRequestCSS_SitF">stream(withHostName:port:)</a>
    193. 

  193.               </li>
    194. 

  194.               <li class="nav-group-task">
    195. 

  195.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload_2to6method7headersAA13UploadRequestC10Foundation3URLV_AA14URLConvertible_pAA10HTTPMethodOSDyS2SGSgtF">upload(_:to:method:headers:)</a>
    196. 

  196.               </li>
    197. 

  197.               <li class="nav-group-task">
    198. 

  198.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload_2to6method7headersAA13UploadRequestC10Foundation4DataV_AA14URLConvertible_pAA10HTTPMethodOSDyS2SGSgtF">upload(_:to:method:headers:)</a>
    199. 

  199.               </li>
    200. 

  200.               <li class="nav-group-task">
    201. 

  201.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload_2to6method7headersAA13UploadRequestCSo13NSInputStreamC_AA14URLConvertible_pAA10HTTPMethodOSDyS2SGSgtF">upload(_:to:method:headers:)</a>
    202. 

  202.               </li>
    203. 

  203.               <li class="nav-group-task">
    204. 

  204.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload_4withAA13UploadRequestC10Foundation3URLV_AA21URLRequestConvertible_ptF">upload(_:with:)</a>
    205. 

  205.               </li>
    206. 

  206.               <li class="nav-group-task">
    207. 

  207.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload_4withAA13UploadRequestC10Foundation4DataV_AA21URLRequestConvertible_ptF">upload(_:with:)</a>
    208. 

  208.               </li>
    209. 

  209.               <li class="nav-group-task">
    210. 

  210.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload_4withAA13UploadRequestCSo13NSInputStreamC_AA21URLRequestConvertible_ptF">upload(_:with:)</a>
    211. 

  211.               </li>
    212. 

  212.               <li class="nav-group-task">
    213. 

  213.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload17multipartFormData14usingThreshold2to6method7headers18encodingCompletionyyAA09MultipartdE0Cc_s6UInt64VAA14URLConvertible_pAA10HTTPMethodOSDyS2SGSgyAA14SessionManagerC0mdE14EncodingResultOcSgtF">upload(multipartFormData:usingThreshold:to:method:headers:encodingCompletion:)</a>
    214. 

  214.               </li>
    215. 

  215.               <li class="nav-group-task">
    216. 

  216.                 <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6upload17multipartFormData14usingThreshold4with18encodingCompletionyyAA09MultipartdE0Cc_s6UInt64VAA21URLRequestConvertible_pyAA14SessionManagerC0kdE14EncodingResultOcSgtF">upload(multipartFormData:usingThreshold:with:encodingCompletion:)</a>
    217. 

  217.               </li>
    218. 

  218.             </ul>
    219. 

  219.           </li>
    220. 

  220.           <li class="nav-group-name">
    221. 

  221.             <a class="nav-group-name-link" href="../Protocols.html">Protocols</a>
    222. 

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    223. 

  223.               <li class="nav-group-task">
    224. 

  224.                 <a class="nav-group-task-link" href="../Protocols/DataResponseSerializerProtocol.html">DataResponseSerializerProtocol</a>
    225. 

  225.               </li>
    226. 

  226.               <li class="nav-group-task">
    227. 

  227.                 <a class="nav-group-task-link" href="../Protocols/DownloadResponseSerializerProtocol.html">DownloadResponseSerializerProtocol</a>
    228. 

  228.               </li>
    229. 

  229.               <li class="nav-group-task">
    230. 

  230.                 <a class="nav-group-task-link" href="../Protocols/ParameterEncoding.html">ParameterEncoding</a>
    231. 

  231.               </li>
    232. 

  232.               <li class="nav-group-task">
    233. 

  233.                 <a class="nav-group-task-link" href="../Protocols/RequestAdapter.html">RequestAdapter</a>
    234. 

  234.               </li>
    235. 

  235.               <li class="nav-group-task">
    236. 

  236.                 <a class="nav-group-task-link" href="../Protocols/RequestRetrier.html">RequestRetrier</a>
    237. 

  237.               </li>
    238. 

  238.               <li class="nav-group-task">
    239. 

  239.                 <a class="nav-group-task-link" href="../Protocols/URLConvertible.html">URLConvertible</a>
    240. 

  240.               </li>
    241. 

  241.               <li class="nav-group-task">
    242. 

  242.                 <a class="nav-group-task-link" href="../Protocols/URLRequestConvertible.html">URLRequestConvertible</a>
    243. 

  243.               </li>
    244. 

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  249.               <li class="nav-group-task">
    250. 

  250.                 <a class="nav-group-task-link" href="../Structs/DataResponse.html">DataResponse</a>
    251. 

  251.               </li>
    252. 

  252.               <li class="nav-group-task">
    253. 

  253.                 <a class="nav-group-task-link" href="../Structs/DataResponseSerializer.html">DataResponseSerializer</a>
    254. 

  254.               </li>
    255. 

  255.               <li class="nav-group-task">
    256. 

  256.                 <a class="nav-group-task-link" href="../Structs/DefaultDataResponse.html">DefaultDataResponse</a>
    257. 

  257.               </li>
    258. 

  258.               <li class="nav-group-task">
    259. 

  259.                 <a class="nav-group-task-link" href="../Structs/DefaultDownloadResponse.html">DefaultDownloadResponse</a>
    260. 

  260.               </li>
    261. 

  261.               <li class="nav-group-task">
    262. 

  262.                 <a class="nav-group-task-link" href="../Structs/DownloadResponse.html">DownloadResponse</a>
    263. 

  263.               </li>
    264. 

  264.               <li class="nav-group-task">
    265. 

  265.                 <a class="nav-group-task-link" href="../Structs/DownloadResponseSerializer.html">DownloadResponseSerializer</a>
    266. 

  266.               </li>
    267. 

  267.               <li class="nav-group-task">
    268. 

  268.                 <a class="nav-group-task-link" href="../Structs/JSONEncoding.html">JSONEncoding</a>
    269. 

  269.               </li>
    270. 

  270.               <li class="nav-group-task">
    271. 

  271.                 <a class="nav-group-task-link" href="../Structs/PropertyListEncoding.html">PropertyListEncoding</a>
    272. 

  272.               </li>
    273. 

  273.               <li class="nav-group-task">
    274. 

  274.                 <a class="nav-group-task-link" href="../Structs/Timeline.html">Timeline</a>
    275. 

  275.               </li>
    276. 

  276.               <li class="nav-group-task">
    277. 

  277.                 <a class="nav-group-task-link" href="../Structs/URLEncoding.html">URLEncoding</a>
    278. 

  278.               </li>
    279. 

  279.               <li class="nav-group-task">
    280. 

  280.                 <a class="nav-group-task-link" href="../Structs/URLEncoding/Destination.html">– Destination</a>
    281. 

  281.               </li>
    282. 

  282.               <li class="nav-group-task">
    283. 

  283.                 <a class="nav-group-task-link" href="../Structs/URLEncoding/ArrayEncoding.html">– ArrayEncoding</a>
    284. 

  284.               </li>
    285. 

  285.               <li class="nav-group-task">
    286. 

  286.                 <a class="nav-group-task-link" href="../Structs/URLEncoding/BoolEncoding.html">– BoolEncoding</a>
    287. 

  287.               </li>
    288. 

  288.             </ul>
    289. 

  289.           </li>
    290. 

  290.           <li class="nav-group-name">
    291. 

  291.             <a class="nav-group-name-link" href="../Typealiases.html">Type Aliases</a>
    292. 

  292.             <ul class="nav-group-tasks">
    293. 

  293.               <li class="nav-group-task">
    294. 

  294.                 <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire11HTTPHeadersa">HTTPHeaders</a>
    295. 

  295.               </li>
    296. 

  296.               <li class="nav-group-task">
    297. 

  297.                 <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire10Parametersa">Parameters</a>
    298. 

  298.               </li>
    299. 

  299.               <li class="nav-group-task">
    300. 

  300.                 <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire22RequestRetryCompletiona">RequestRetryCompletion</a>
    301. 

  301.               </li>
    302. 

  302.             </ul>
    303. 

  303.           </li>
    304. 

  304.         </ul>
    305. 

  305.       </nav>
    306. 

  306.       <article class="main-content">
    307. 

  307. 

  308.         <section class="section">
    309. 

  309.           <div class="section-content">
    310. 

  310.             <h1>Result</h1>
    311. 

  311.               <div class="declaration">
    312. 

  312.                 <div class="language">
    313. 

  313.                   <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Value</span><span class="o">&gt;</span></code></pre>
    314. 

  314. 

  315.                 </div>
    316. 

  316.               </div>
    317. 

  317.             <p>Used to represent whether a request was successful or encountered an error.</p>
    318. 

  318. 

  319. <ul>
    320. 

  320. <li><p>success: The request and all post processing operations were successful resulting in the serialization of the
    321. 

  321.        provided associated value.</p></li>
    322. 

  322. <li><p>failure: The request encountered an error resulting in a failure. The associated values are the original data
    323. 

  323.        provided by the server as well as the error that caused the failure.</p></li>
    324. 

  324. </ul>
    325. 

  325. 

  326.           </div>
    327. 

  327.         </section>
    328. 

  328. 

  329.         <section class="section">
    330. 

  330.           <div class="section-content">
    331. 

  331.             <div class="task-group">
    332. 

  332.               <ul class="item-container">
    333. 

  333.                 <li class="item">
    334. 

  334.                   <div>
    335. 

  335.                     <code>
    336. 

  336.                     <a name="/s:9Alamofire6ResultO7successyACyxGxcAEmlF"></a>
    337. 

  337.                     <a name="//apple_ref/swift/Element/success(_:)" class="dashAnchor"></a>
    338. 

  338.                     <a class="token" href="#/s:9Alamofire6ResultO7successyACyxGxcAEmlF">success(_:)</a>
    339. 

  339.                     </code>
    340. 

  340.                   </div>
    341. 

  341.                   <div class="height-container">
    342. 

  342.                     <div class="pointer-container"></div>
    343. 

  343.                     <section class="section">
    344. 

  344.                       <div class="pointer"></div>
    345. 

  345.                       <div class="abstract">
    346. 

  346.                         <p>Undocumented</p>
    347. 

  347. 

  348.                       </div>
    349. 

  349.                       <div class="declaration">
    350. 

  350.                         <h4>Declaration</h4>
    351. 

  351.                         <div class="language">
    352. 

  352.                           <p class="aside-title">Swift</p>
    353. 

  353.                           <pre class="highlight swift"><code><span class="k">case</span> <span class="nf">success</span><span class="p">(</span><span class="kt">Value</span><span class="p">)</span></code></pre>
    354. 

  354. 

  355.                         </div>
    356. 

  356.                       </div>
    357. 

  357.                     </section>
    358. 

  358.                   </div>
    359. 

  359.                 </li>
    360. 

  360.                 <li class="item">
    361. 

  361.                   <div>
    362. 

  362.                     <code>
    363. 

  363.                     <a name="/s:9Alamofire6ResultO7failureyACyxGs5Error_pcAEmlF"></a>
    364. 

  364.                     <a name="//apple_ref/swift/Element/failure(_:)" class="dashAnchor"></a>
    365. 

  365.                     <a class="token" href="#/s:9Alamofire6ResultO7failureyACyxGs5Error_pcAEmlF">failure(_:)</a>
    366. 

  366.                     </code>
    367. 

  367.                   </div>
    368. 

  368.                   <div class="height-container">
    369. 

  369.                     <div class="pointer-container"></div>
    370. 

  370.                     <section class="section">
    371. 

  371.                       <div class="pointer"></div>
    372. 

  372.                       <div class="abstract">
    373. 

  373.                         <p>Undocumented</p>
    374. 

  374. 

  375.                       </div>
    376. 

  376.                       <div class="declaration">
    377. 

  377.                         <h4>Declaration</h4>
    378. 

  378.                         <div class="language">
    379. 

  379.                           <p class="aside-title">Swift</p>
    380. 

  380.                           <pre class="highlight swift"><code><span class="k">case</span> <span class="nf">failure</span><span class="p">(</span><span class="kt">Error</span><span class="p">)</span></code></pre>
    381. 

  381. 

  382.                         </div>
    383. 

  383.                       </div>
    384. 

  384.                     </section>
    385. 

  385.                   </div>
    386. 

  386.                 </li>
    387. 

  387.                 <li class="item">
    388. 

  388.                   <div>
    389. 

  389.                     <code>
    390. 

  390.                     <a name="/s:9Alamofire6ResultO9isSuccessSbvp"></a>
    391. 

  391.                     <a name="//apple_ref/swift/Property/isSuccess" class="dashAnchor"></a>
    392. 

  392.                     <a class="token" href="#/s:9Alamofire6ResultO9isSuccessSbvp">isSuccess</a>
    393. 

  393.                     </code>
    394. 

  394.                   </div>
    395. 

  395.                   <div class="height-container">
    396. 

  396.                     <div class="pointer-container"></div>
    397. 

  397.                     <section class="section">
    398. 

  398.                       <div class="pointer"></div>
    399. 

  399.                       <div class="abstract">
    400. 

  400.                         <p>Returns <code>true</code> if the result is a success, <code>false</code> otherwise.</p>
    401. 

  401. 

  402.                       </div>
    403. 

  403.                       <div class="declaration">
    404. 

  404.                         <h4>Declaration</h4>
    405. 

  405.                         <div class="language">
    406. 

  406.                           <p class="aside-title">Swift</p>
    407. 

  407.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">isSuccess</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
    408. 

  408. 

  409.                         </div>
    410. 

  410.                       </div>
    411. 

  411.                     </section>
    412. 

  412.                   </div>
    413. 

  413.                 </li>
    414. 

  414.                 <li class="item">
    415. 

  415.                   <div>
    416. 

  416.                     <code>
    417. 

  417.                     <a name="/s:9Alamofire6ResultO9isFailureSbvp"></a>
    418. 

  418.                     <a name="//apple_ref/swift/Property/isFailure" class="dashAnchor"></a>
    419. 

  419.                     <a class="token" href="#/s:9Alamofire6ResultO9isFailureSbvp">isFailure</a>
    420. 

  420.                     </code>
    421. 

  421.                   </div>
    422. 

  422.                   <div class="height-container">
    423. 

  423.                     <div class="pointer-container"></div>
    424. 

  424.                     <section class="section">
    425. 

  425.                       <div class="pointer"></div>
    426. 

  426.                       <div class="abstract">
    427. 

  427.                         <p>Returns <code>true</code> if the result is a failure, <code>false</code> otherwise.</p>
    428. 

  428. 

  429.                       </div>
    430. 

  430.                       <div class="declaration">
    431. 

  431.                         <h4>Declaration</h4>
    432. 

  432.                         <div class="language">
    433. 

  433.                           <p class="aside-title">Swift</p>
    434. 

  434.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">isFailure</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
    435. 

  435. 

  436.                         </div>
    437. 

  437.                       </div>
    438. 

  438.                     </section>
    439. 

  439.                   </div>
    440. 

  440.                 </li>
    441. 

  441.                 <li class="item">
    442. 

  442.                   <div>
    443. 

  443.                     <code>
    444. 

  444.                     <a name="/s:9Alamofire6ResultO5valuexSgvp"></a>
    445. 

  445.                     <a name="//apple_ref/swift/Property/value" class="dashAnchor"></a>
    446. 

  446.                     <a class="token" href="#/s:9Alamofire6ResultO5valuexSgvp">value</a>
    447. 

  447.                     </code>
    448. 

  448.                   </div>
    449. 

  449.                   <div class="height-container">
    450. 

  450.                     <div class="pointer-container"></div>
    451. 

  451.                     <section class="section">
    452. 

  452.                       <div class="pointer"></div>
    453. 

  453.                       <div class="abstract">
    454. 

  454.                         <p>Returns the associated value if the result is a success, <code>nil</code> otherwise.</p>
    455. 

  455. 

  456.                       </div>
    457. 

  457.                       <div class="declaration">
    458. 

  458.                         <h4>Declaration</h4>
    459. 

  459.                         <div class="language">
    460. 

  460.                           <p class="aside-title">Swift</p>
    461. 

  461.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">value</span><span class="p">:</span> <span class="kt">Value</span><span class="p">?</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
    462. 

  462. 

  463.                         </div>
    464. 

  464.                       </div>
    465. 

  465.                     </section>
    466. 

  466.                   </div>
    467. 

  467.                 </li>
    468. 

  468.                 <li class="item">
    469. 

  469.                   <div>
    470. 

  470.                     <code>
    471. 

  471.                     <a name="/s:9Alamofire6ResultO5errors5Error_pSgvp"></a>
    472. 

  472.                     <a name="//apple_ref/swift/Property/error" class="dashAnchor"></a>
    473. 

  473.                     <a class="token" href="#/s:9Alamofire6ResultO5errors5Error_pSgvp">error</a>
    474. 

  474.                     </code>
    475. 

  475.                   </div>
    476. 

  476.                   <div class="height-container">
    477. 

  477.                     <div class="pointer-container"></div>
    478. 

  478.                     <section class="section">
    479. 

  479.                       <div class="pointer"></div>
    480. 

  480.                       <div class="abstract">
    481. 

  481.                         <p>Returns the associated error value if the result is a failure, <code>nil</code> otherwise.</p>
    482. 

  482. 

  483.                       </div>
    484. 

  484.                       <div class="declaration">
    485. 

  485.                         <h4>Declaration</h4>
    486. 

  486.                         <div class="language">
    487. 

  487.                           <p class="aside-title">Swift</p>
    488. 

  488.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">error</span><span class="p">:</span> <span class="kt">Error</span><span class="p">?</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
    489. 

  489. 

  490.                         </div>
    491. 

  491.                       </div>
    492. 

  492.                     </section>
    493. 

  493.                   </div>
    494. 

  494.                 </li>
    495. 

  495.               </ul>
    496. 

  496.             </div>
    497. 

  497.             <div class="task-group">
    498. 

  498.               <div class="task-name-container">
    499. 

  499.                 <a name="/CustomStringConvertible"></a>
    500. 

  500.                 <a name="//apple_ref/swift/Section/CustomStringConvertible" class="dashAnchor"></a>
    501. 

  501.                 <a href="#/CustomStringConvertible">
    502. 

  502.                   <h3 class="section-name">CustomStringConvertible</h3>
    503. 

  503.                 </a>
    504. 

  504.               </div>
    505. 

  505.               <ul class="item-container">
    506. 

  506.                 <li class="item">
    507. 

  507.                   <div>
    508. 

  508.                     <code>
    509. 

  509.                     <a name="/s:9Alamofire6ResultO11descriptionSSvp"></a>
    510. 

  510.                     <a name="//apple_ref/swift/Property/description" class="dashAnchor"></a>
    511. 

  511.                     <a class="token" href="#/s:9Alamofire6ResultO11descriptionSSvp">description</a>
    512. 

  512.                     </code>
    513. 

  513.                   </div>
    514. 

  514.                   <div class="height-container">
    515. 

  515.                     <div class="pointer-container"></div>
    516. 

  516.                     <section class="section">
    517. 

  517.                       <div class="pointer"></div>
    518. 

  518.                       <div class="abstract">
    519. 

  519.                         <p>The textual representation used when written to an output stream, which includes whether the result was a
    520. 

  520. success or failure.</p>
    521. 

  521. 

  522.                       </div>
    523. 

  523.                       <div class="declaration">
    524. 

  524.                         <h4>Declaration</h4>
    525. 

  525.                         <div class="language">
    526. 

  526.                           <p class="aside-title">Swift</p>
    527. 

  527.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">description</span><span class="p">:</span> <span class="kt">String</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
    528. 

  528. 

  529.                         </div>
    530. 

  530.                       </div>
    531. 

  531.                     </section>
    532. 

  532.                   </div>
    533. 

  533.                 </li>
    534. 

  534.               </ul>
    535. 

  535.             </div>
    536. 

  536.             <div class="task-group">
    537. 

  537.               <div class="task-name-container">
    538. 

  538.                 <a name="/CustomDebugStringConvertible"></a>
    539. 

  539.                 <a name="//apple_ref/swift/Section/CustomDebugStringConvertible" class="dashAnchor"></a>
    540. 

  540.                 <a href="#/CustomDebugStringConvertible">
    541. 

  541.                   <h3 class="section-name">CustomDebugStringConvertible</h3>
    542. 

  542.                 </a>
    543. 

  543.               </div>
    544. 

  544.               <ul class="item-container">
    545. 

  545.                 <li class="item">
    546. 

  546.                   <div>
    547. 

  547.                     <code>
    548. 

  548.                     <a name="/s:9Alamofire6ResultO16debugDescriptionSSvp"></a>
    549. 

  549.                     <a name="//apple_ref/swift/Property/debugDescription" class="dashAnchor"></a>
    550. 

  550.                     <a class="token" href="#/s:9Alamofire6ResultO16debugDescriptionSSvp">debugDescription</a>
    551. 

  551.                     </code>
    552. 

  552.                   </div>
    553. 

  553.                   <div class="height-container">
    554. 

  554.                     <div class="pointer-container"></div>
    555. 

  555.                     <section class="section">
    556. 

  556.                       <div class="pointer"></div>
    557. 

  557.                       <div class="abstract">
    558. 

  558.                         <p>The debug textual representation used when written to an output stream, which includes whether the result was a
    559. 

  559. success or failure in addition to the value or error.</p>
    560. 

  560. 

  561.                       </div>
    562. 

  562.                       <div class="declaration">
    563. 

  563.                         <h4>Declaration</h4>
    564. 

  564.                         <div class="language">
    565. 

  565.                           <p class="aside-title">Swift</p>
    566. 

  566.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">debugDescription</span><span class="p">:</span> <span class="kt">String</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
    567. 

  567. 

  568.                         </div>
    569. 

  569.                       </div>
    570. 

  570.                     </section>
    571. 

  571.                   </div>
    572. 

  572.                 </li>
    573. 

  573.               </ul>
    574. 

  574.             </div>
    575. 

  575.             <div class="task-group">
    576. 

  576.               <div class="task-name-container">
    577. 

  577.                 <a name="/Functional%20APIs"></a>
    578. 

  578.                 <a name="//apple_ref/swift/Section/Functional APIs" class="dashAnchor"></a>
    579. 

  579.                 <a href="#/Functional%20APIs">
    580. 

  580.                   <h3 class="section-name">Functional APIs</h3>
    581. 

  581.                 </a>
    582. 

  582.               </div>
    583. 

  583.               <ul class="item-container">
    584. 

  584.                 <li class="item">
    585. 

  585.                   <div>
    586. 

  586.                     <code>
    587. 

  587.                     <a name="/s:9Alamofire6ResultO5valueACyxGxyKXE_tcfc"></a>
    588. 

  588.                     <a name="//apple_ref/swift/Method/init(value:)" class="dashAnchor"></a>
    589. 

  589.                     <a class="token" href="#/s:9Alamofire6ResultO5valueACyxGxyKXE_tcfc">init(value:)</a>
    590. 

  590.                     </code>
    591. 

  591.                   </div>
    592. 

  592.                   <div class="height-container">
    593. 

  593.                     <div class="pointer-container"></div>
    594. 

  594.                     <section class="section">
    595. 

  595.                       <div class="pointer"></div>
    596. 

  596.                       <div class="abstract">
    597. 

  597.                         <p>Creates a <code>Result</code> instance from the result of a closure.</p>
    598. 

  598. 

  599. <p>A failure result is created when the closure throws, and a success result is created when the closure
    600. 

  600. succeeds without throwing an error.</p>
    601. 

  601. <pre class="highlight swift"><code><span class="kd">func</span> <span class="nf">someString</span><span class="p">()</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">String</span> <span class="p">{</span> <span class="o">...</span> <span class="p">}</span>
    602. 

  602. 

  603. <span class="k">let</span> <span class="nv">result</span> <span class="o">=</span> <span class="kt">Result</span><span class="p">(</span><span class="nv">value</span><span class="p">:</span> <span class="p">{</span>
    604. 

  604.     <span class="k">return</span> <span class="k">try</span> <span class="nf">someString</span><span class="p">()</span>
    605. 

  605. <span class="p">})</span>
    606. 

  606. 

  607. <span class="c1">// The type of result is Result&lt;String&gt;</span>
    608. 

  608. </code></pre>
    609. 

  609. 

  610. <p>The trailing closure syntax is also supported:</p>
    611. 

  611. <pre class="highlight swift"><code><span class="k">let</span> <span class="nv">result</span> <span class="o">=</span> <span class="kt">Result</span> <span class="p">{</span> <span class="k">try</span> <span class="nf">someString</span><span class="p">()</span> <span class="p">}</span>
    612. 

  612. </code></pre>
    613. 

  613. 

  614.                       </div>
    615. 

  615.                       <div class="declaration">
    616. 

  616.                         <h4>Declaration</h4>
    617. 

  617.                         <div class="language">
    618. 

  618.                           <p class="aside-title">Swift</p>
    619. 

  619.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="nf">init</span><span class="p">(</span><span class="nv">value</span><span class="p">:</span> <span class="p">()</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">Value</span><span class="p">)</span></code></pre>
    620. 

  620. 

  621.                         </div>
    622. 

  622.                       </div>
    623. 

  623.                       <div>
    624. 

  624.                         <h4>Parameters</h4>
    625. 

  625.                         <table class="graybox">
    626. 

  626.                           <tbody>
    627. 

  627.                             <tr>
    628. 

  628.                               <td>
    629. 

  629.                                 <code>
    630. 

  630.                                 <em>value</em>
    631. 

  631.                                 </code>
    632. 

  632.                               </td>
    633. 

  633.                               <td>
    634. 

  634.                                 <div>
    635. 

  635.                                   <p>The closure to execute and create the result for.</p>
    636. 

  636.                                 </div>
    637. 

  637.                               </td>
    638. 

  638.                             </tr>
    639. 

  639.                           </tbody>
    640. 

  640.                         </table>
    641. 

  641.                       </div>
    642. 

  642.                     </section>
    643. 

  643.                   </div>
    644. 

  644.                 </li>
    645. 

  645.                 <li class="item">
    646. 

  646.                   <div>
    647. 

  647.                     <code>
    648. 

  648.                     <a name="/s:9Alamofire6ResultO6unwrapxyKF"></a>
    649. 

  649.                     <a name="//apple_ref/swift/Method/unwrap()" class="dashAnchor"></a>
    650. 

  650.                     <a class="token" href="#/s:9Alamofire6ResultO6unwrapxyKF">unwrap()</a>
    651. 

  651.                     </code>
    652. 

  652.                   </div>
    653. 

  653.                   <div class="height-container">
    654. 

  654.                     <div class="pointer-container"></div>
    655. 

  655.                     <section class="section">
    656. 

  656.                       <div class="pointer"></div>
    657. 

  657.                       <div class="abstract">
    658. 

  658.                         <p>Returns the success value, or throws the failure error.</p>
    659. 

  659. <pre class="highlight swift"><code><span class="k">let</span> <span class="nv">possibleString</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">String</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">success</span><span class="p">(</span><span class="s">"success"</span><span class="p">)</span>
    660. 

  660. <span class="k">try</span> <span class="nf">print</span><span class="p">(</span><span class="n">possibleString</span><span class="o">.</span><span class="nf">unwrap</span><span class="p">())</span>
    661. 

  661. <span class="c1">// Prints "success"</span>
    662. 

  662. 

  663. <span class="k">let</span> <span class="nv">noString</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">String</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">failure</span><span class="p">(</span><span class="n">error</span><span class="p">)</span>
    664. 

  664. <span class="k">try</span> <span class="nf">print</span><span class="p">(</span><span class="n">noString</span><span class="o">.</span><span class="nf">unwrap</span><span class="p">())</span>
    665. 

  665. <span class="c1">// Throws error</span>
    666. 

  666. </code></pre>
    667. 

  667. 

  668.                       </div>
    669. 

  669.                       <div class="declaration">
    670. 

  670.                         <h4>Declaration</h4>
    671. 

  671.                         <div class="language">
    672. 

  672.                           <p class="aside-title">Swift</p>
    673. 

  673.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">unwrap</span><span class="p">()</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">Value</span></code></pre>
    674. 

  674. 

  675.                         </div>
    676. 

  676.                       </div>
    677. 

  677.                     </section>
    678. 

  678.                   </div>
    679. 

  679.                 </li>
    680. 

  680.                 <li class="item">
    681. 

  681.                   <div>
    682. 

  682.                     <code>
    683. 

  683.                     <a name="/s:9Alamofire6ResultO3mapyACyqd__Gqd__xXElF"></a>
    684. 

  684.                     <a name="//apple_ref/swift/Method/map(_:)" class="dashAnchor"></a>
    685. 

  685.                     <a class="token" href="#/s:9Alamofire6ResultO3mapyACyqd__Gqd__xXElF">map(_:)</a>
    686. 

  686.                     </code>
    687. 

  687.                   </div>
    688. 

  688.                   <div class="height-container">
    689. 

  689.                     <div class="pointer-container"></div>
    690. 

  690.                     <section class="section">
    691. 

  691.                       <div class="pointer"></div>
    692. 

  692.                       <div class="abstract">
    693. 

  693.                         <p>Evaluates the specified closure when the <code>Result</code> is a success, passing the unwrapped value as a parameter.</p>
    694. 

  694. 

  695. <p>Use the <code>map</code> method with a closure that does not throw. For example:</p>
    696. 

  696. <pre class="highlight swift"><code><span class="k">let</span> <span class="nv">possibleData</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">success</span><span class="p">(</span><span class="kt">Data</span><span class="p">())</span>
    697. 

  697. <span class="k">let</span> <span class="nv">possibleInt</span> <span class="o">=</span> <span class="n">possibleData</span><span class="o">.</span><span class="n">map</span> <span class="p">{</span> <span class="nv">$0</span><span class="o">.</span><span class="n">count</span> <span class="p">}</span>
    698. 

  698. <span class="k">try</span> <span class="nf">print</span><span class="p">(</span><span class="n">possibleInt</span><span class="o">.</span><span class="nf">unwrap</span><span class="p">())</span>
    699. 

  699. <span class="c1">// Prints "0"</span>
    700. 

  700. 

  701. <span class="k">let</span> <span class="nv">noData</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">failure</span><span class="p">(</span><span class="n">error</span><span class="p">)</span>
    702. 

  702. <span class="k">let</span> <span class="nv">noInt</span> <span class="o">=</span> <span class="n">noData</span><span class="o">.</span><span class="n">map</span> <span class="p">{</span> <span class="nv">$0</span><span class="o">.</span><span class="n">count</span> <span class="p">}</span>
    703. 

  703. <span class="k">try</span> <span class="nf">print</span><span class="p">(</span><span class="n">noInt</span><span class="o">.</span><span class="nf">unwrap</span><span class="p">())</span>
    704. 

  704. <span class="c1">// Throws error</span>
    705. 

  705. </code></pre>
    706. 

  706. 

  707.                       </div>
    708. 

  708.                       <div class="declaration">
    709. 

  709.                         <h4>Declaration</h4>
    710. 

  710.                         <div class="language">
    711. 

  711.                           <p class="aside-title">Swift</p>
    712. 

  712.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="n">map</span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span><span class="p">(</span><span class="n">_</span> <span class="nv">transform</span><span class="p">:</span> <span class="p">(</span><span class="kt">Value</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">T</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span></code></pre>
    713. 

  713. 

  714.                         </div>
    715. 

  715.                       </div>
    716. 

  716.                       <div>
    717. 

  717.                         <h4>Parameters</h4>
    718. 

  718.                         <table class="graybox">
    719. 

  719.                           <tbody>
    720. 

  720.                             <tr>
    721. 

  721.                               <td>
    722. 

  722.                                 <code>
    723. 

  723.                                 <em>transform</em>
    724. 

  724.                                 </code>
    725. 

  725.                               </td>
    726. 

  726.                               <td>
    727. 

  727.                                 <div>
    728. 

  728.                                   <p>A closure that takes the success value of the <code>Result</code> instance.</p>
    729. 

  729.                                 </div>
    730. 

  730.                               </td>
    731. 

  731.                             </tr>
    732. 

  732.                           </tbody>
    733. 

  733.                         </table>
    734. 

  734.                       </div>
    735. 

  735.                       <div>
    736. 

  736.                         <h4>Return Value</h4>
    737. 

  737.                         <p>A <code>Result</code> containing the result of the given closure. If this instance is a failure, returns the
    738. 

  738.        same failure.</p>
    739. 

  739.                       </div>
    740. 

  740.                     </section>
    741. 

  741.                   </div>
    742. 

  742.                 </li>
    743. 

  743.                 <li class="item">
    744. 

  744.                   <div>
    745. 

  745.                     <code>
    746. 

  746.                     <a name="/s:9Alamofire6ResultO7flatMapyACyqd__Gqd__xKXElF"></a>
    747. 

  747.                     <a name="//apple_ref/swift/Method/flatMap(_:)" class="dashAnchor"></a>
    748. 

  748.                     <a class="token" href="#/s:9Alamofire6ResultO7flatMapyACyqd__Gqd__xKXElF">flatMap(_:)</a>
    749. 

  749.                     </code>
    750. 

  750.                   </div>
    751. 

  751.                   <div class="height-container">
    752. 

  752.                     <div class="pointer-container"></div>
    753. 

  753.                     <section class="section">
    754. 

  754.                       <div class="pointer"></div>
    755. 

  755.                       <div class="abstract">
    756. 

  756.                         <p>Evaluates the specified closure when the <code>Result</code> is a success, passing the unwrapped value as a parameter.</p>
    757. 

  757. 

  758. <p>Use the <code>flatMap</code> method with a closure that may throw an error. For example:</p>
    759. 

  759. <pre class="highlight swift"><code><span class="k">let</span> <span class="nv">possibleData</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">success</span><span class="p">(</span><span class="kt">Data</span><span class="p">(</span><span class="o">...</span><span class="p">))</span>
    760. 

  760. <span class="k">let</span> <span class="nv">possibleObject</span> <span class="o">=</span> <span class="n">possibleData</span><span class="o">.</span><span class="n">flatMap</span> <span class="p">{</span>
    761. 

  761.     <span class="k">try</span> <span class="kt">JSONSerialization</span><span class="o">.</span><span class="nf">jsonObject</span><span class="p">(</span><span class="nv">with</span><span class="p">:</span> <span class="nv">$0</span><span class="p">)</span>
    762. 

  762. <span class="p">}</span>
    763. 

  763. </code></pre>
    764. 

  764. 

  765.                       </div>
    766. 

  766.                       <div class="declaration">
    767. 

  767.                         <h4>Declaration</h4>
    768. 

  768.                         <div class="language">
    769. 

  769.                           <p class="aside-title">Swift</p>
    770. 

  770.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="n">flatMap</span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span><span class="p">(</span><span class="n">_</span> <span class="nv">transform</span><span class="p">:</span> <span class="p">(</span><span class="kt">Value</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">T</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span></code></pre>
    771. 

  771. 

  772.                         </div>
    773. 

  773.                       </div>
    774. 

  774.                       <div>
    775. 

  775.                         <h4>Parameters</h4>
    776. 

  776.                         <table class="graybox">
    777. 

  777.                           <tbody>
    778. 

  778.                             <tr>
    779. 

  779.                               <td>
    780. 

  780.                                 <code>
    781. 

  781.                                 <em>transform</em>
    782. 

  782.                                 </code>
    783. 

  783.                               </td>
    784. 

  784.                               <td>
    785. 

  785.                                 <div>
    786. 

  786.                                   <p>A closure that takes the success value of the instance.</p>
    787. 

  787.                                 </div>
    788. 

  788.                               </td>
    789. 

  789.                             </tr>
    790. 

  790.                           </tbody>
    791. 

  791.                         </table>
    792. 

  792.                       </div>
    793. 

  793.                       <div>
    794. 

  794.                         <h4>Return Value</h4>
    795. 

  795.                         <p>A <code>Result</code> containing the result of the given closure. If this instance is a failure, returns the
    796. 

  796.        same failure.</p>
    797. 

  797.                       </div>
    798. 

  798.                     </section>
    799. 

  799.                   </div>
    800. 

  800.                 </li>
    801. 

  801.                 <li class="item">
    802. 

  802.                   <div>
    803. 

  803.                     <code>
    804. 

  804.                     <a name="/s:9Alamofire6ResultO8mapErroryACyxGqd__s0D0_pXEsAFRd__lF"></a>
    805. 

  805.                     <a name="//apple_ref/swift/Method/mapError(_:)" class="dashAnchor"></a>
    806. 

  806.                     <a class="token" href="#/s:9Alamofire6ResultO8mapErroryACyxGqd__s0D0_pXEsAFRd__lF">mapError(_:)</a>
    807. 

  807.                     </code>
    808. 

  808.                   </div>
    809. 

  809.                   <div class="height-container">
    810. 

  810.                     <div class="pointer-container"></div>
    811. 

  811.                     <section class="section">
    812. 

  812.                       <div class="pointer"></div>
    813. 

  813.                       <div class="abstract">
    814. 

  814.                         <p>Evaluates the specified closure when the <code>Result</code> is a failure, passing the unwrapped error as a parameter.</p>
    815. 

  815. 

  816. <p>Use the <code>mapError</code> function with a closure that does not throw. For example:</p>
    817. 

  817. <pre class="highlight swift"><code><span class="k">let</span> <span class="nv">possibleData</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">failure</span><span class="p">(</span><span class="n">someError</span><span class="p">)</span>
    818. 

  818. <span class="k">let</span> <span class="nv">withMyError</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span> <span class="o">=</span> <span class="n">possibleData</span><span class="o">.</span><span class="n">mapError</span> <span class="p">{</span> <span class="kt">MyError</span><span class="o">.</span><span class="nf">error</span><span class="p">(</span><span class="nv">$0</span><span class="p">)</span> <span class="p">}</span>
    819. 

  819. </code></pre>
    820. 

  820. 

  821.                       </div>
    822. 

  822.                       <div class="declaration">
    823. 

  823.                         <h4>Declaration</h4>
    824. 

  824.                         <div class="language">
    825. 

  825.                           <p class="aside-title">Swift</p>
    826. 

  826.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="n">mapError</span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span><span class="p">(</span><span class="n">_</span> <span class="nv">transform</span><span class="p">:</span> <span class="p">(</span><span class="kt">Error</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">T</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span> <span class="k">where</span> <span class="kt">T</span> <span class="p">:</span> <span class="kt">Error</span></code></pre>
    827. 

  827. 

  828.                         </div>
    829. 

  829.                       </div>
    830. 

  830.                       <div>
    831. 

  831.                         <h4>Parameters</h4>
    832. 

  832.                         <table class="graybox">
    833. 

  833.                           <tbody>
    834. 

  834.                             <tr>
    835. 

  835.                               <td>
    836. 

  836.                                 <code>
    837. 

  837.                                 <em>transform</em>
    838. 

  838.                                 </code>
    839. 

  839.                               </td>
    840. 

  840.                               <td>
    841. 

  841.                                 <div>
    842. 

  842.                                   <p>A closure that takes the error of the instance.</p>
    843. 

  843.                                 </div>
    844. 

  844.                               </td>
    845. 

  845.                             </tr>
    846. 

  846.                           </tbody>
    847. 

  847.                         </table>
    848. 

  848.                       </div>
    849. 

  849.                       <div>
    850. 

  850.                         <h4>Return Value</h4>
    851. 

  851.                         <p>A <code>Result</code> instance containing the result of the transform. If this instance is a success, returns
    852. 

  852.        the same instance.</p>
    853. 

  853.                       </div>
    854. 

  854.                     </section>
    855. 

  855.                   </div>
    856. 

  856.                 </li>
    857. 

  857.                 <li class="item">
    858. 

  858.                   <div>
    859. 

  859.                     <code>
    860. 

  860.                     <a name="/s:9Alamofire6ResultO12flatMapErroryACyxGqd__s0E0_pKXEsAFRd__lF"></a>
    861. 

  861.                     <a name="//apple_ref/swift/Method/flatMapError(_:)" class="dashAnchor"></a>
    862. 

  862.                     <a class="token" href="#/s:9Alamofire6ResultO12flatMapErroryACyxGqd__s0E0_pKXEsAFRd__lF">flatMapError(_:)</a>
    863. 

  863.                     </code>
    864. 

  864.                   </div>
    865. 

  865.                   <div class="height-container">
    866. 

  866.                     <div class="pointer-container"></div>
    867. 

  867.                     <section class="section">
    868. 

  868.                       <div class="pointer"></div>
    869. 

  869.                       <div class="abstract">
    870. 

  870.                         <p>Evaluates the specified closure when the <code>Result</code> is a failure, passing the unwrapped error as a parameter.</p>
    871. 

  871. 

  872. <p>Use the <code>flatMapError</code> function with a closure that may throw an error. For example:</p>
    873. 

  873. <pre class="highlight swift"><code><span class="k">let</span> <span class="nv">possibleData</span><span class="p">:</span> <span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Data</span><span class="o">&gt;</span> <span class="o">=</span> <span class="o">.</span><span class="nf">success</span><span class="p">(</span><span class="kt">Data</span><span class="p">(</span><span class="o">...</span><span class="p">))</span>
    874. 

  874. <span class="k">let</span> <span class="nv">possibleObject</span> <span class="o">=</span> <span class="n">possibleData</span><span class="o">.</span><span class="n">flatMapError</span> <span class="p">{</span>
    875. 

  875.     <span class="k">try</span> <span class="nf">someFailableFunction</span><span class="p">(</span><span class="nv">taking</span><span class="p">:</span> <span class="nv">$0</span><span class="p">)</span>
    876. 

  876. <span class="p">}</span>
    877. 

  877. </code></pre>
    878. 

  878. 

  879.                       </div>
    880. 

  880.                       <div class="declaration">
    881. 

  881.                         <h4>Declaration</h4>
    882. 

  882.                         <div class="language">
    883. 

  883.                           <p class="aside-title">Swift</p>
    884. 

  884.                           <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="n">flatMapError</span><span class="o">&lt;</span><span class="kt">T</span><span class="o">&gt;</span><span class="p">(</span><span class="n">_</span> <span class="nv">transform</span><span class="p">:</span> <span class="p">(</span><span class="kt">Error</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">T</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span> <span class="k">where</span> <span class="kt">T</span> <span class="p">:</span> <span class="kt">Error</span></code></pre>
    885. 

  885. 

  886.                         </div>
    887. 

  887.                       </div>
    888. 

  888.                       <div>
    889. 

  889.                         <h4>Parameters</h4>
    890. 

  890.                         <table class="graybox">
    891. 

  891.                           <tbody>
    892. 

  892.                             <tr>
    893. 

  893.                               <td>
    894. 

  894.                                 <code>
    895. 

  895.                                 <em>transform</em>
    896. 

  896.                                 </code>
    897. 

  897.                               </td>
    898. 

  898.                               <td>
    899. 

  899.                                 <div>
    900. 

  900.                                   <p>A throwing closure that takes the error of the instance.</p>
    901. 

  901.                                 </div>
    902. 

  902.                               </td>
    903. 

  903.                             </tr>
    904. 

  904.                           </tbody>
    905. 

  905.                         </table>
    906. 

  906.                       </div>
    907. 

  907.                       <div>
    908. 

  908.                         <h4>Return Value</h4>
    909. 

  909.                         <p>A <code>Result</code> instance containing the result of the transform. If this instance is a success, returns
    910. 

  910.        the same instance.</p>
    911. 

  911.                       </div>
    912. 

  912.                     </section>
    913. 

  913.                   </div>
    914. 

  914.                 </li>
    915. 

  915.                 <li class="item">
    916. 

  916.                   <div>
    917. 

  917.                     <code>
    918. 

  918.                     <a name="/s:9Alamofire6ResultO9withValueyACyxGyxKXEKF"></a>
    919. 

  919.                     <a name="//apple_ref/swift/Method/withValue(_:)" class="dashAnchor"></a>
    920. 

  920.                     <a class="token" href="#/s:9Alamofire6ResultO9withValueyACyxGyxKXEKF">withValue(_:)</a>
    921. 

  921.                     </code>
    922. 

  922.                   </div>
    923. 

  923.                   <div class="height-container">
    924. 

  924.                     <div class="pointer-container"></div>
    925. 

  925.                     <section class="section">
    926. 

  926.                       <div class="pointer"></div>
    927. 

  927.                       <div class="abstract">
    928. 

  928.                         <p>Evaluates the specified closure when the <code>Result</code> is a success, passing the unwrapped value as a parameter.</p>
    929. 

  929. 

  930. <p>Use the <code>withValue</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
    931. 

  931. 

  932.                       </div>
    933. 

  933.                       <div class="declaration">
    934. 

  934.                         <h4>Declaration</h4>
    935. 

  935.                         <div class="language">
    936. 

  936.                           <p class="aside-title">Swift</p>
    937. 

  937.                           <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
    938. 

  938. <span class="kd">public</span> <span class="kd">func</span> <span class="nf">withValue</span><span class="p">(</span><span class="n">_</span> <span class="nv">closure</span><span class="p">:</span> <span class="p">(</span><span class="kt">Value</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="k">rethrows</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
    939. 

  939. 

  940.                         </div>
    941. 

  941.                       </div>
    942. 

  942.                       <div>
    943. 

  943.                         <h4>Parameters</h4>
    944. 

  944.                         <table class="graybox">
    945. 

  945.                           <tbody>
    946. 

  946.                             <tr>
    947. 

  947.                               <td>
    948. 

  948.                                 <code>
    949. 

  949.                                 <em>closure</em>
    950. 

  950.                                 </code>
    951. 

  951.                               </td>
    952. 

  952.                               <td>
    953. 

  953.                                 <div>
    954. 

  954.                                   <p>A closure that takes the success value of this instance.</p>
    955. 

  955.                                 </div>
    956. 

  956.                               </td>
    957. 

  957.                             </tr>
    958. 

  958.                           </tbody>
    959. 

  959.                         </table>
    960. 

  960.                       </div>
    961. 

  961.                       <div>
    962. 

  962.                         <h4>Return Value</h4>
    963. 

  963.                         <p>This <code>Result</code> instance, unmodified.</p>
    964. 

  964.                       </div>
    965. 

  965.                     </section>
    966. 

  966.                   </div>
    967. 

  967.                 </li>
    968. 

  968.                 <li class="item">
    969. 

  969.                   <div>
    970. 

  970.                     <code>
    971. 

  971.                     <a name="/s:9Alamofire6ResultO9withErroryACyxGys0D0_pKXEKF"></a>
    972. 

  972.                     <a name="//apple_ref/swift/Method/withError(_:)" class="dashAnchor"></a>
    973. 

  973.                     <a class="token" href="#/s:9Alamofire6ResultO9withErroryACyxGys0D0_pKXEKF">withError(_:)</a>
    974. 

  974.                     </code>
    975. 

  975.                   </div>
    976. 

  976.                   <div class="height-container">
    977. 

  977.                     <div class="pointer-container"></div>
    978. 

  978.                     <section class="section">
    979. 

  979.                       <div class="pointer"></div>
    980. 

  980.                       <div class="abstract">
    981. 

  981.                         <p>Evaluates the specified closure when the <code>Result</code> is a failure, passing the unwrapped error as a parameter.</p>
    982. 

  982. 

  983. <p>Use the <code>withError</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
    984. 

  984. 

  985.                       </div>
    986. 

  986.                       <div class="declaration">
    987. 

  987.                         <h4>Declaration</h4>
    988. 

  988.                         <div class="language">
    989. 

  989.                           <p class="aside-title">Swift</p>
    990. 

  990.                           <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
    991. 

  991. <span class="kd">public</span> <span class="kd">func</span> <span class="nf">withError</span><span class="p">(</span><span class="n">_</span> <span class="nv">closure</span><span class="p">:</span> <span class="p">(</span><span class="kt">Error</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="k">rethrows</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
    992. 

  992. 

  993.                         </div>
    994. 

  994.                       </div>
    995. 

  995.                       <div>
    996. 

  996.                         <h4>Parameters</h4>
    997. 

  997.                         <table class="graybox">
    998. 

  998.                           <tbody>
    999. 

  999.                             <tr>
    1000. 

  1000.                               <td>
    1001. 

  1001.                                 <code>
    1002. 

  1002.                                 <em>closure</em>
    1003. 

  1003.                                 </code>
    1004. 

  1004.                               </td>
    1005. 

  1005.                               <td>
    1006. 

  1006.                                 <div>
    1007. 

  1007.                                   <p>A closure that takes the success value of this instance.</p>
    1008. 

  1008.                                 </div>
    1009. 

  1009.                               </td>
    1010. 

  1010.                             </tr>
    1011. 

  1011.                           </tbody>
    1012. 

  1012.                         </table>
    1013. 

  1013.                       </div>
    1014. 

  1014.                       <div>
    1015. 

  1015.                         <h4>Return Value</h4>
    1016. 

  1016.                         <p>This <code>Result</code> instance, unmodified.</p>
    1017. 

  1017.                       </div>
    1018. 

  1018.                     </section>
    1019. 

  1019.                   </div>
    1020. 

  1020.                 </li>
    1021. 

  1021.                 <li class="item">
    1022. 

  1022.                   <div>
    1023. 

  1023.                     <code>
    1024. 

  1024.                     <a name="/s:9Alamofire6ResultO9ifSuccessyACyxGyyKXEKF"></a>
    1025. 

  1025.                     <a name="//apple_ref/swift/Method/ifSuccess(_:)" class="dashAnchor"></a>
    1026. 

  1026.                     <a class="token" href="#/s:9Alamofire6ResultO9ifSuccessyACyxGyyKXEKF">ifSuccess(_:)</a>
    1027. 

  1027.                     </code>
    1028. 

  1028.                   </div>
    1029. 

  1029.                   <div class="height-container">
    1030. 

  1030.                     <div class="pointer-container"></div>
    1031. 

  1031.                     <section class="section">
    1032. 

  1032.                       <div class="pointer"></div>
    1033. 

  1033.                       <div class="abstract">
    1034. 

  1034.                         <p>Evaluates the specified closure when the <code>Result</code> is a success.</p>
    1035. 

  1035. 

  1036. <p>Use the <code>ifSuccess</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
    1037. 

  1037. 

  1038.                       </div>
    1039. 

  1039.                       <div class="declaration">
    1040. 

  1040.                         <h4>Declaration</h4>
    1041. 

  1041.                         <div class="language">
    1042. 

  1042.                           <p class="aside-title">Swift</p>
    1043. 

  1043.                           <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
    1044. 

  1044. <span class="kd">public</span> <span class="kd">func</span> <span class="nf">ifSuccess</span><span class="p">(</span><span class="n">_</span> <span class="nv">closure</span><span class="p">:</span> <span class="p">()</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="k">rethrows</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
    1045. 

  1045. 

  1046.                         </div>
    1047. 

  1047.                       </div>
    1048. 

  1048.                       <div>
    1049. 

  1049.                         <h4>Parameters</h4>
    1050. 

  1050.                         <table class="graybox">
    1051. 

  1051.                           <tbody>
    1052. 

  1052.                             <tr>
    1053. 

  1053.                               <td>
    1054. 

  1054.                                 <code>
    1055. 

  1055.                                 <em>closure</em>
    1056. 

  1056.                                 </code>
    1057. 

  1057.                               </td>
    1058. 

  1058.                               <td>
    1059. 

  1059.                                 <div>
    1060. 

  1060.                                   <p>A <code>Void</code> closure.</p>
    1061. 

  1061.                                 </div>
    1062. 

  1062.                               </td>
    1063. 

  1063.                             </tr>
    1064. 

  1064.                           </tbody>
    1065. 

  1065.                         </table>
    1066. 

  1066.                       </div>
    1067. 

  1067.                       <div>
    1068. 

  1068.                         <h4>Return Value</h4>
    1069. 

  1069.                         <p>This <code>Result</code> instance, unmodified.</p>
    1070. 

  1070.                       </div>
    1071. 

  1071.                     </section>
    1072. 

  1072.                   </div>
    1073. 

  1073.                 </li>
    1074. 

  1074.                 <li class="item">
    1075. 

  1075.                   <div>
    1076. 

  1076.                     <code>
    1077. 

  1077.                     <a name="/s:9Alamofire6ResultO9ifFailureyACyxGyyKXEKF"></a>
    1078. 

  1078.                     <a name="//apple_ref/swift/Method/ifFailure(_:)" class="dashAnchor"></a>
    1079. 

  1079.                     <a class="token" href="#/s:9Alamofire6ResultO9ifFailureyACyxGyyKXEKF">ifFailure(_:)</a>
    1080. 

  1080.                     </code>
    1081. 

  1081.                   </div>
    1082. 

  1082.                   <div class="height-container">
    1083. 

  1083.                     <div class="pointer-container"></div>
    1084. 

  1084.                     <section class="section">
    1085. 

  1085.                       <div class="pointer"></div>
    1086. 

  1086.                       <div class="abstract">
    1087. 

  1087.                         <p>Evaluates the specified closure when the <code>Result</code> is a failure.</p>
    1088. 

  1088. 

  1089. <p>Use the <code>ifFailure</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
    1090. 

  1090. 

  1091.                       </div>
    1092. 

  1092.                       <div class="declaration">
    1093. 

  1093.                         <h4>Declaration</h4>
    1094. 

  1094.                         <div class="language">
    1095. 

  1095.                           <p class="aside-title">Swift</p>
    1096. 

  1096.                           <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
    1097. 

  1097. <span class="kd">public</span> <span class="kd">func</span> <span class="nf">ifFailure</span><span class="p">(</span><span class="n">_</span> <span class="nv">closure</span><span class="p">:</span> <span class="p">()</span> <span class="k">throws</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="k">rethrows</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
    1098. 

  1098. 

  1099.                         </div>
    1100. 

  1100.                       </div>
    1101. 

  1101.                       <div>
    1102. 

  1102.                         <h4>Parameters</h4>
    1103. 

  1103.                         <table class="graybox">
    1104. 

  1104.                           <tbody>
    1105. 

  1105.                             <tr>
    1106. 

  1106.                               <td>
    1107. 

  1107.                                 <code>
    1108. 

  1108.                                 <em>closure</em>
    1109. 

  1109.                                 </code>
    1110. 

  1110.                               </td>
    1111. 

  1111.                               <td>
    1112. 

  1112.                                 <div>
    1113. 

  1113.                                   <p>A <code>Void</code> closure.</p>
    1114. 

  1114.                                 </div>
    1115. 

  1115.                               </td>
    1116. 

  1116.                             </tr>
    1117. 

  1117.                           </tbody>
    1118. 

  1118.                         </table>
    1119. 

  1119.                       </div>
    1120. 

  1120.                       <div>
    1121. 

  1121.                         <h4>Return Value</h4>
    1122. 

  1122.                         <p>This <code>Result</code> instance, unmodified.</p>
    1123. 

  1123.                       </div>
    1124. 

  1124.                     </section>
    1125. 

  1125.                   </div>
    1126. 

  1126.                 </li>
    1127. 

  1127.               </ul>
    1128. 

  1128.             </div>
    1129. 

  1129.           </div>
    1130. 

  1130.         </section>
    1131. 

  1131. 

  1132.       </article>
    1133. 

  1133.     </div>
    1134. 

  1134.     <section class="footer">
    1135. 

  1135.       <p>&copy; 2018 <a class="link" href="http://alamofire.org/" target="_blank" rel="external">Alamofire Software Foundation</a>. All rights reserved. (Last updated: 2018-11-24)</p>
    1136. 

  1136.       <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.9.4</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
    1137. 

  1137.     </section>
    1138. 

  1138.   </body>
    1139. 

  1139. </div>
    1140. 

  1140. </html>
    1141.