Result.html 57 KB

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  4. <title>Result Enum Reference</title>
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  39. Result Enum Reference
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  166. </li>
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  168. <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire7requestAA11DataRequestCAA21URLRequestConvertible_pF">request(_:)</a>
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  172. </li>
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  184. </li>
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  187. </li>
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  189. <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6uploadAA13UploadRequestC10Foundation3URLV_AA21URLRequestConvertible_p4withtF">upload(_:with:)</a>
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  192. <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6uploadAA13UploadRequestC10Foundation4DataV_AA21URLRequestConvertible_p4withtF">upload(_:with:)</a>
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  195. <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6uploadAA13UploadRequestCSo11InputStreamC_AA21URLRequestConvertible_p4withtF">upload(_:with:)</a>
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  198. <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6uploadyyAA17MultipartFormDataCc09multipartdE0_s6UInt64V14usingThresholdAA14URLConvertible_p2toAA10HTTPMethodO6methods10DictionaryVyS2SGSg7headersyAA14SessionManagerC0cdE14EncodingResultOcSg18encodingCompletiontF">upload(multipartFormData:usingThreshold:to:method:headers:encodingCompletion:)</a>
  199. </li>
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  201. <a class="nav-group-task-link" href="../Functions.html#/s:9Alamofire6uploadyyAA17MultipartFormDataCc09multipartdE0_s6UInt64V14usingThresholdAA21URLRequestConvertible_p4withyAA14SessionManagerC0cdE14EncodingResultOcSg18encodingCompletiontF">upload(multipartFormData:usingThreshold:with:encodingCompletion:)</a>
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  265. <a class="nav-group-task-link" href="../Structs/URLEncoding/Destination.html">– Destination</a>
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  273. <a class="nav-group-task-link" href="../Typealiases.html#/s:9Alamofire11HTTPHeadersa">HTTPHeaders</a>
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  285. <article class="main-content">
  286. <section class="section">
  287. <div class="section-content">
  288. <h1>Result</h1>
  289. <div class="declaration">
  290. <div class="language">
  291. <pre class="highlight"><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>
  292. </div>
  293. </div>
  294. <p>Used to represent whether a request was successful or encountered an error.</p>
  295. <ul>
  296. <li><p>success: The request and all post processing operations were successful resulting in the serialization of the
  297. provided associated value.</p></li>
  298. <li><p>failure: The request encountered an error resulting in a failure. The associated values are the original data
  299. provided by the server as well as the error that caused the failure.</p></li>
  300. </ul>
  301. </div>
  302. </section>
  303. <section class="section">
  304. <div class="section-content">
  305. <div class="task-group">
  306. <ul class="item-container">
  307. <li class="item">
  308. <div>
  309. <code>
  310. <a name="/s:9Alamofire6ResultO7successACyxGxcAEmlF"></a>
  311. <a name="//apple_ref/swift/Element/success" class="dashAnchor"></a>
  312. <a class="token" href="#/s:9Alamofire6ResultO7successACyxGxcAEmlF">success</a>
  313. </code>
  314. </div>
  315. <div class="height-container">
  316. <div class="pointer-container"></div>
  317. <section class="section">
  318. <div class="pointer"></div>
  319. <div class="abstract">
  320. <p>Undocumented</p>
  321. </div>
  322. <div class="declaration">
  323. <h4>Declaration</h4>
  324. <div class="language">
  325. <p class="aside-title">Swift</p>
  326. <pre class="highlight"><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>
  327. </div>
  328. </div>
  329. </section>
  330. </div>
  331. </li>
  332. </ul>
  333. </div>
  334. <div class="task-group">
  335. <ul class="item-container">
  336. <li class="item">
  337. <div>
  338. <code>
  339. <a name="/s:9Alamofire6ResultO7failureACyxGs5Error_pcAEmlF"></a>
  340. <a name="//apple_ref/swift/Element/failure" class="dashAnchor"></a>
  341. <a class="token" href="#/s:9Alamofire6ResultO7failureACyxGs5Error_pcAEmlF">failure</a>
  342. </code>
  343. </div>
  344. <div class="height-container">
  345. <div class="pointer-container"></div>
  346. <section class="section">
  347. <div class="pointer"></div>
  348. <div class="abstract">
  349. <p>Undocumented</p>
  350. </div>
  351. <div class="declaration">
  352. <h4>Declaration</h4>
  353. <div class="language">
  354. <p class="aside-title">Swift</p>
  355. <pre class="highlight"><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>
  356. </div>
  357. </div>
  358. </section>
  359. </div>
  360. </li>
  361. </ul>
  362. </div>
  363. <div class="task-group">
  364. <ul class="item-container">
  365. <li class="item">
  366. <div>
  367. <code>
  368. <a name="/s:9Alamofire6ResultO9isSuccessSbv"></a>
  369. <a name="//apple_ref/swift/Property/isSuccess" class="dashAnchor"></a>
  370. <a class="token" href="#/s:9Alamofire6ResultO9isSuccessSbv">isSuccess</a>
  371. </code>
  372. </div>
  373. <div class="height-container">
  374. <div class="pointer-container"></div>
  375. <section class="section">
  376. <div class="pointer"></div>
  377. <div class="abstract">
  378. <p>Returns <code>true</code> if the result is a success, <code>false</code> otherwise.</p>
  379. </div>
  380. <div class="declaration">
  381. <h4>Declaration</h4>
  382. <div class="language">
  383. <p class="aside-title">Swift</p>
  384. <pre class="highlight"><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></code></pre>
  385. </div>
  386. </div>
  387. </section>
  388. </div>
  389. </li>
  390. <li class="item">
  391. <div>
  392. <code>
  393. <a name="/s:9Alamofire6ResultO9isFailureSbv"></a>
  394. <a name="//apple_ref/swift/Property/isFailure" class="dashAnchor"></a>
  395. <a class="token" href="#/s:9Alamofire6ResultO9isFailureSbv">isFailure</a>
  396. </code>
  397. </div>
  398. <div class="height-container">
  399. <div class="pointer-container"></div>
  400. <section class="section">
  401. <div class="pointer"></div>
  402. <div class="abstract">
  403. <p>Returns <code>true</code> if the result is a failure, <code>false</code> otherwise.</p>
  404. </div>
  405. <div class="declaration">
  406. <h4>Declaration</h4>
  407. <div class="language">
  408. <p class="aside-title">Swift</p>
  409. <pre class="highlight"><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></code></pre>
  410. </div>
  411. </div>
  412. </section>
  413. </div>
  414. </li>
  415. <li class="item">
  416. <div>
  417. <code>
  418. <a name="/s:9Alamofire6ResultO5valuexSgv"></a>
  419. <a name="//apple_ref/swift/Property/value" class="dashAnchor"></a>
  420. <a class="token" href="#/s:9Alamofire6ResultO5valuexSgv">value</a>
  421. </code>
  422. </div>
  423. <div class="height-container">
  424. <div class="pointer-container"></div>
  425. <section class="section">
  426. <div class="pointer"></div>
  427. <div class="abstract">
  428. <p>Returns the associated value if the result is a success, <code>nil</code> otherwise.</p>
  429. </div>
  430. <div class="declaration">
  431. <h4>Declaration</h4>
  432. <div class="language">
  433. <p class="aside-title">Swift</p>
  434. <pre class="highlight"><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></code></pre>
  435. </div>
  436. </div>
  437. </section>
  438. </div>
  439. </li>
  440. <li class="item">
  441. <div>
  442. <code>
  443. <a name="/s:9Alamofire6ResultO5errors5Error_pSgv"></a>
  444. <a name="//apple_ref/swift/Property/error" class="dashAnchor"></a>
  445. <a class="token" href="#/s:9Alamofire6ResultO5errors5Error_pSgv">error</a>
  446. </code>
  447. </div>
  448. <div class="height-container">
  449. <div class="pointer-container"></div>
  450. <section class="section">
  451. <div class="pointer"></div>
  452. <div class="abstract">
  453. <p>Returns the associated error value if the result is a failure, <code>nil</code> otherwise.</p>
  454. </div>
  455. <div class="declaration">
  456. <h4>Declaration</h4>
  457. <div class="language">
  458. <p class="aside-title">Swift</p>
  459. <pre class="highlight"><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></code></pre>
  460. </div>
  461. </div>
  462. </section>
  463. </div>
  464. </li>
  465. </ul>
  466. </div>
  467. <div class="task-group">
  468. <ul class="item-container">
  469. <li class="item">
  470. <div>
  471. <code>
  472. <a name="/s:9Alamofire6ResultO11descriptionSSv"></a>
  473. <a name="//apple_ref/swift/Property/description" class="dashAnchor"></a>
  474. <a class="token" href="#/s:9Alamofire6ResultO11descriptionSSv">description</a>
  475. </code>
  476. </div>
  477. <div class="height-container">
  478. <div class="pointer-container"></div>
  479. <section class="section">
  480. <div class="pointer"></div>
  481. <div class="abstract">
  482. <p>The textual representation used when written to an output stream, which includes whether the result was a
  483. success or failure.</p>
  484. </div>
  485. <div class="declaration">
  486. <h4>Declaration</h4>
  487. <div class="language">
  488. <p class="aside-title">Swift</p>
  489. <pre class="highlight"><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></code></pre>
  490. </div>
  491. </div>
  492. </section>
  493. </div>
  494. </li>
  495. </ul>
  496. </div>
  497. <div class="task-group">
  498. <ul class="item-container">
  499. <li class="item">
  500. <div>
  501. <code>
  502. <a name="/s:9Alamofire6ResultO16debugDescriptionSSv"></a>
  503. <a name="//apple_ref/swift/Property/debugDescription" class="dashAnchor"></a>
  504. <a class="token" href="#/s:9Alamofire6ResultO16debugDescriptionSSv">debugDescription</a>
  505. </code>
  506. </div>
  507. <div class="height-container">
  508. <div class="pointer-container"></div>
  509. <section class="section">
  510. <div class="pointer"></div>
  511. <div class="abstract">
  512. <p>The debug textual representation used when written to an output stream, which includes whether the result was a
  513. success or failure in addition to the value or error.</p>
  514. </div>
  515. <div class="declaration">
  516. <h4>Declaration</h4>
  517. <div class="language">
  518. <p class="aside-title">Swift</p>
  519. <pre class="highlight"><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></code></pre>
  520. </div>
  521. </div>
  522. </section>
  523. </div>
  524. </li>
  525. </ul>
  526. </div>
  527. <div class="task-group">
  528. <ul class="item-container">
  529. <li class="item">
  530. <div>
  531. <code>
  532. <a name="/s:9Alamofire6ResultOACyxGxyKc5value_tcfc"></a>
  533. <a name="//apple_ref/swift/Method/init(value:)" class="dashAnchor"></a>
  534. <a class="token" href="#/s:9Alamofire6ResultOACyxGxyKc5value_tcfc">init(value:)</a>
  535. </code>
  536. </div>
  537. <div class="height-container">
  538. <div class="pointer-container"></div>
  539. <section class="section">
  540. <div class="pointer"></div>
  541. <div class="abstract">
  542. <p>Creates a <code>Result</code> instance from the result of a closure.</p>
  543. <p>A failure result is created when the closure throws, and a success result is created when the closure
  544. succeeds without throwing an error.</p>
  545. <pre class="highlight plaintext"><code>func someString() throws -&gt; String { ... }
  546. let result = Result(value: {
  547. return try someString()
  548. })
  549. // The type of result is Result&lt;String&gt;
  550. </code></pre>
  551. <p>The trailing closure syntax is also supported:</p>
  552. <pre class="highlight plaintext"><code>let result = Result { try someString() }
  553. </code></pre>
  554. </div>
  555. <div class="declaration">
  556. <h4>Declaration</h4>
  557. <div class="language">
  558. <p class="aside-title">Swift</p>
  559. <pre class="highlight"><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>
  560. </div>
  561. </div>
  562. <div>
  563. <h4>Parameters</h4>
  564. <table class="graybox">
  565. <tbody>
  566. <tr>
  567. <td>
  568. <code>
  569. <em>value</em>
  570. </code>
  571. </td>
  572. <td>
  573. <div>
  574. <p>The closure to execute and create the result for.</p>
  575. </div>
  576. </td>
  577. </tr>
  578. </tbody>
  579. </table>
  580. </div>
  581. </section>
  582. </div>
  583. </li>
  584. <li class="item">
  585. <div>
  586. <code>
  587. <a name="/s:9Alamofire6ResultO6unwrapxyKF"></a>
  588. <a name="//apple_ref/swift/Method/unwrap()" class="dashAnchor"></a>
  589. <a class="token" href="#/s:9Alamofire6ResultO6unwrapxyKF">unwrap()</a>
  590. </code>
  591. </div>
  592. <div class="height-container">
  593. <div class="pointer-container"></div>
  594. <section class="section">
  595. <div class="pointer"></div>
  596. <div class="abstract">
  597. <p>Returns the success value, or throws the failure error.</p>
  598. <pre class="highlight plaintext"><code>let possibleString: Result&lt;String&gt; = .success("success")
  599. try print(possibleString.unwrap())
  600. // Prints "success"
  601. let noString: Result&lt;String&gt; = .failure(error)
  602. try print(noString.unwrap())
  603. // Throws error
  604. </code></pre>
  605. </div>
  606. <div class="declaration">
  607. <h4>Declaration</h4>
  608. <div class="language">
  609. <p class="aside-title">Swift</p>
  610. <pre class="highlight"><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>
  611. </div>
  612. </div>
  613. </section>
  614. </div>
  615. </li>
  616. <li class="item">
  617. <div>
  618. <code>
  619. <a name="/s:9Alamofire6ResultO3mapACyqd__Gqd__xclF"></a>
  620. <a name="//apple_ref/swift/Method/map(_:)" class="dashAnchor"></a>
  621. <a class="token" href="#/s:9Alamofire6ResultO3mapACyqd__Gqd__xclF">map(_:)</a>
  622. </code>
  623. </div>
  624. <div class="height-container">
  625. <div class="pointer-container"></div>
  626. <section class="section">
  627. <div class="pointer"></div>
  628. <div class="abstract">
  629. <p>Evaluates the specified closure when the <code>Result</code> is a success, passing the unwrapped value as a parameter.</p>
  630. <p>Use the <code>map</code> method with a closure that does not throw. For example:</p>
  631. <pre class="highlight plaintext"><code>let possibleData: Result&lt;Data&gt; = .success(Data())
  632. let possibleInt = possibleData.map { $0.count }
  633. try print(possibleInt.unwrap())
  634. // Prints "0"
  635. let noData: Result&lt;Data&gt; = .failure(error)
  636. let noInt = noData.map { $0.count }
  637. try print(noInt.unwrap())
  638. // Throws error
  639. </code></pre>
  640. </div>
  641. <div class="declaration">
  642. <h4>Declaration</h4>
  643. <div class="language">
  644. <p class="aside-title">Swift</p>
  645. <pre class="highlight"><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>
  646. </div>
  647. </div>
  648. <div>
  649. <h4>Parameters</h4>
  650. <table class="graybox">
  651. <tbody>
  652. <tr>
  653. <td>
  654. <code>
  655. <em>transform</em>
  656. </code>
  657. </td>
  658. <td>
  659. <div>
  660. <p>A closure that takes the success value of the <code>Result</code> instance.</p>
  661. </div>
  662. </td>
  663. </tr>
  664. </tbody>
  665. </table>
  666. </div>
  667. <div>
  668. <h4>Return Value</h4>
  669. <p>A <code>Result</code> containing the result of the given closure. If this instance is a failure, returns the
  670. same failure.</p>
  671. </div>
  672. </section>
  673. </div>
  674. </li>
  675. <li class="item">
  676. <div>
  677. <code>
  678. <a name="/s:9Alamofire6ResultO7flatMapACyqd__Gqd__xKclF"></a>
  679. <a name="//apple_ref/swift/Method/flatMap(_:)" class="dashAnchor"></a>
  680. <a class="token" href="#/s:9Alamofire6ResultO7flatMapACyqd__Gqd__xKclF">flatMap(_:)</a>
  681. </code>
  682. </div>
  683. <div class="height-container">
  684. <div class="pointer-container"></div>
  685. <section class="section">
  686. <div class="pointer"></div>
  687. <div class="abstract">
  688. <p>Evaluates the specified closure when the <code>Result</code> is a success, passing the unwrapped value as a parameter.</p>
  689. <p>Use the <code>flatMap</code> method with a closure that may throw an error. For example:</p>
  690. <pre class="highlight plaintext"><code>let possibleData: Result&lt;Data&gt; = .success(Data(...))
  691. let possibleObject = possibleData.flatMap {
  692. try JSONSerialization.jsonObject(with: $0)
  693. }
  694. </code></pre>
  695. </div>
  696. <div class="declaration">
  697. <h4>Declaration</h4>
  698. <div class="language">
  699. <p class="aside-title">Swift</p>
  700. <pre class="highlight"><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>
  701. </div>
  702. </div>
  703. <div>
  704. <h4>Parameters</h4>
  705. <table class="graybox">
  706. <tbody>
  707. <tr>
  708. <td>
  709. <code>
  710. <em>transform</em>
  711. </code>
  712. </td>
  713. <td>
  714. <div>
  715. <p>A closure that takes the success value of the instance.</p>
  716. </div>
  717. </td>
  718. </tr>
  719. </tbody>
  720. </table>
  721. </div>
  722. <div>
  723. <h4>Return Value</h4>
  724. <p>A <code>Result</code> containing the result of the given closure. If this instance is a failure, returns the
  725. same failure.</p>
  726. </div>
  727. </section>
  728. </div>
  729. </li>
  730. <li class="item">
  731. <div>
  732. <code>
  733. <a name="/s:9Alamofire6ResultO8mapErrorACyxGqd__s0D0_pcsAFRd__lF"></a>
  734. <a name="//apple_ref/swift/Method/mapError(_:)" class="dashAnchor"></a>
  735. <a class="token" href="#/s:9Alamofire6ResultO8mapErrorACyxGqd__s0D0_pcsAFRd__lF">mapError(_:)</a>
  736. </code>
  737. </div>
  738. <div class="height-container">
  739. <div class="pointer-container"></div>
  740. <section class="section">
  741. <div class="pointer"></div>
  742. <div class="abstract">
  743. <p>Evaluates the specified closure when the <code>Result</code> is a failure, passing the unwrapped error as a parameter.</p>
  744. <p>Use the <code>mapError</code> function with a closure that does not throw. For example:</p>
  745. <pre class="highlight plaintext"><code>let possibleData: Result&lt;Data&gt; = .failure(someError)
  746. let withMyError: Result&lt;Data&gt; = possibleData.mapError { MyError.error($0) }
  747. </code></pre>
  748. </div>
  749. <div class="declaration">
  750. <h4>Declaration</h4>
  751. <div class="language">
  752. <p class="aside-title">Swift</p>
  753. <pre class="highlight"><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="p">:</span> <span class="kt">Error</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></code></pre>
  754. </div>
  755. </div>
  756. <div>
  757. <h4>Parameters</h4>
  758. <table class="graybox">
  759. <tbody>
  760. <tr>
  761. <td>
  762. <code>
  763. <em>transform</em>
  764. </code>
  765. </td>
  766. <td>
  767. <div>
  768. <p>A closure that takes the error of the instance.</p>
  769. </div>
  770. </td>
  771. </tr>
  772. </tbody>
  773. </table>
  774. </div>
  775. <div>
  776. <h4>Return Value</h4>
  777. <p>A <code>Result</code> instance containing the result of the transform. If this instance is a success, returns
  778. the same instance.</p>
  779. </div>
  780. </section>
  781. </div>
  782. </li>
  783. <li class="item">
  784. <div>
  785. <code>
  786. <a name="/s:9Alamofire6ResultO12flatMapErrorACyxGqd__s0E0_pKcsAFRd__lF"></a>
  787. <a name="//apple_ref/swift/Method/flatMapError(_:)" class="dashAnchor"></a>
  788. <a class="token" href="#/s:9Alamofire6ResultO12flatMapErrorACyxGqd__s0E0_pKcsAFRd__lF">flatMapError(_:)</a>
  789. </code>
  790. </div>
  791. <div class="height-container">
  792. <div class="pointer-container"></div>
  793. <section class="section">
  794. <div class="pointer"></div>
  795. <div class="abstract">
  796. <p>Evaluates the specified closure when the <code>Result</code> is a failure, passing the unwrapped error as a parameter.</p>
  797. <p>Use the <code>flatMapError</code> function with a closure that may throw an error. For example:</p>
  798. <pre class="highlight plaintext"><code>let possibleData: Result&lt;Data&gt; = .success(Data(...))
  799. let possibleObject = possibleData.flatMapError {
  800. try someFailableFunction(taking: $0)
  801. }
  802. </code></pre>
  803. </div>
  804. <div class="declaration">
  805. <h4>Declaration</h4>
  806. <div class="language">
  807. <p class="aside-title">Swift</p>
  808. <pre class="highlight"><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="p">:</span> <span class="kt">Error</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></code></pre>
  809. </div>
  810. </div>
  811. <div>
  812. <h4>Parameters</h4>
  813. <table class="graybox">
  814. <tbody>
  815. <tr>
  816. <td>
  817. <code>
  818. <em>transform</em>
  819. </code>
  820. </td>
  821. <td>
  822. <div>
  823. <p>A throwing closure that takes the error of the instance.</p>
  824. </div>
  825. </td>
  826. </tr>
  827. </tbody>
  828. </table>
  829. </div>
  830. <div>
  831. <h4>Return Value</h4>
  832. <p>A <code>Result</code> instance containing the result of the transform. If this instance is a success, returns
  833. the same instance.</p>
  834. </div>
  835. </section>
  836. </div>
  837. </li>
  838. <li class="item">
  839. <div>
  840. <code>
  841. <a name="/s:9Alamofire6ResultO9withValueACyxGyxcF"></a>
  842. <a name="//apple_ref/swift/Method/withValue(_:)" class="dashAnchor"></a>
  843. <a class="token" href="#/s:9Alamofire6ResultO9withValueACyxGyxcF">withValue(_:)</a>
  844. </code>
  845. </div>
  846. <div class="height-container">
  847. <div class="pointer-container"></div>
  848. <section class="section">
  849. <div class="pointer"></div>
  850. <div class="abstract">
  851. <p>Evaluates the specified closure when the <code>Result</code> is a success, passing the unwrapped value as a parameter.</p>
  852. <p>Use the <code>withValue</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
  853. </div>
  854. <div class="declaration">
  855. <h4>Declaration</h4>
  856. <div class="language">
  857. <p class="aside-title">Swift</p>
  858. <pre class="highlight"><code><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="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
  859. </div>
  860. </div>
  861. <div>
  862. <h4>Parameters</h4>
  863. <table class="graybox">
  864. <tbody>
  865. <tr>
  866. <td>
  867. <code>
  868. <em>closure</em>
  869. </code>
  870. </td>
  871. <td>
  872. <div>
  873. <p>A closure that takes the success value of this instance.</p>
  874. </div>
  875. </td>
  876. </tr>
  877. </tbody>
  878. </table>
  879. </div>
  880. <div>
  881. <h4>Return Value</h4>
  882. <p>This <code>Result</code> instance, unmodified.</p>
  883. </div>
  884. </section>
  885. </div>
  886. </li>
  887. <li class="item">
  888. <div>
  889. <code>
  890. <a name="/s:9Alamofire6ResultO9withErrorACyxGys0D0_pcF"></a>
  891. <a name="//apple_ref/swift/Method/withError(_:)" class="dashAnchor"></a>
  892. <a class="token" href="#/s:9Alamofire6ResultO9withErrorACyxGys0D0_pcF">withError(_:)</a>
  893. </code>
  894. </div>
  895. <div class="height-container">
  896. <div class="pointer-container"></div>
  897. <section class="section">
  898. <div class="pointer"></div>
  899. <div class="abstract">
  900. <p>Evaluates the specified closure when the <code>Result</code> is a failure, passing the unwrapped error as a parameter.</p>
  901. <p>Use the <code>withError</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
  902. </div>
  903. <div class="declaration">
  904. <h4>Declaration</h4>
  905. <div class="language">
  906. <p class="aside-title">Swift</p>
  907. <pre class="highlight"><code><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="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
  908. </div>
  909. </div>
  910. <div>
  911. <h4>Parameters</h4>
  912. <table class="graybox">
  913. <tbody>
  914. <tr>
  915. <td>
  916. <code>
  917. <em>closure</em>
  918. </code>
  919. </td>
  920. <td>
  921. <div>
  922. <p>A closure that takes the success value of this instance.</p>
  923. </div>
  924. </td>
  925. </tr>
  926. </tbody>
  927. </table>
  928. </div>
  929. <div>
  930. <h4>Return Value</h4>
  931. <p>This <code>Result</code> instance, unmodified.</p>
  932. </div>
  933. </section>
  934. </div>
  935. </li>
  936. <li class="item">
  937. <div>
  938. <code>
  939. <a name="/s:9Alamofire6ResultO9ifSuccessACyxGyycF"></a>
  940. <a name="//apple_ref/swift/Method/ifSuccess(_:)" class="dashAnchor"></a>
  941. <a class="token" href="#/s:9Alamofire6ResultO9ifSuccessACyxGyycF">ifSuccess(_:)</a>
  942. </code>
  943. </div>
  944. <div class="height-container">
  945. <div class="pointer-container"></div>
  946. <section class="section">
  947. <div class="pointer"></div>
  948. <div class="abstract">
  949. <p>Evaluates the specified closure when the <code>Result</code> is a success.</p>
  950. <p>Use the <code>ifSuccess</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
  951. </div>
  952. <div class="declaration">
  953. <h4>Declaration</h4>
  954. <div class="language">
  955. <p class="aside-title">Swift</p>
  956. <pre class="highlight"><code><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="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
  957. </div>
  958. </div>
  959. <div>
  960. <h4>Parameters</h4>
  961. <table class="graybox">
  962. <tbody>
  963. <tr>
  964. <td>
  965. <code>
  966. <em>closure</em>
  967. </code>
  968. </td>
  969. <td>
  970. <div>
  971. <p>A <code>Void</code> closure.</p>
  972. </div>
  973. </td>
  974. </tr>
  975. </tbody>
  976. </table>
  977. </div>
  978. <div>
  979. <h4>Return Value</h4>
  980. <p>This <code>Result</code> instance, unmodified.</p>
  981. </div>
  982. </section>
  983. </div>
  984. </li>
  985. <li class="item">
  986. <div>
  987. <code>
  988. <a name="/s:9Alamofire6ResultO9ifFailureACyxGyycF"></a>
  989. <a name="//apple_ref/swift/Method/ifFailure(_:)" class="dashAnchor"></a>
  990. <a class="token" href="#/s:9Alamofire6ResultO9ifFailureACyxGyycF">ifFailure(_:)</a>
  991. </code>
  992. </div>
  993. <div class="height-container">
  994. <div class="pointer-container"></div>
  995. <section class="section">
  996. <div class="pointer"></div>
  997. <div class="abstract">
  998. <p>Evaluates the specified closure when the <code>Result</code> is a failure.</p>
  999. <p>Use the <code>ifFailure</code> function to evaluate the passed closure without modifying the <code>Result</code> instance.</p>
  1000. </div>
  1001. <div class="declaration">
  1002. <h4>Declaration</h4>
  1003. <div class="language">
  1004. <p class="aside-title">Swift</p>
  1005. <pre class="highlight"><code><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="o">-&gt;</span> <span class="kt">Void</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Result</span></code></pre>
  1006. </div>
  1007. </div>
  1008. <div>
  1009. <h4>Parameters</h4>
  1010. <table class="graybox">
  1011. <tbody>
  1012. <tr>
  1013. <td>
  1014. <code>
  1015. <em>closure</em>
  1016. </code>
  1017. </td>
  1018. <td>
  1019. <div>
  1020. <p>A <code>Void</code> closure.</p>
  1021. </div>
  1022. </td>
  1023. </tr>
  1024. </tbody>
  1025. </table>
  1026. </div>
  1027. <div>
  1028. <h4>Return Value</h4>
  1029. <p>This <code>Result</code> instance, unmodified.</p>
  1030. </div>
  1031. </section>
  1032. </div>
  1033. </li>
  1034. </ul>
  1035. </div>
  1036. </div>
  1037. </section>
  1038. </article>
  1039. </div>
  1040. <section class="footer">
  1041. <p>&copy; 2017 <a class="link" href="http://alamofire.org/" target="_blank" rel="external">Alamofire Software Foundation</a>. All rights reserved. (Last updated: 2017-08-21)</p>
  1042. <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.8.3</a>, a <a class="link" href="http://realm.io" target="_blank" rel="external">Realm</a> project.</p>
  1043. </section>
  1044. </body>
  1045. </div>
  1046. </html>