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<title data-react-helmet="true">Retry Handling | SpotifyAPI-NET</title><meta data-react-helmet="true" property="og:url" content="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/retry_handling"><meta data-react-helmet="true" name="docusaurus_locale" content="en"><meta data-react-helmet="true" name="docusaurus_version" content="current"><meta data-react-helmet="true" name="docusaurus_tag" content="docs-default-current"><meta data-react-helmet="true" property="og:title" content="Retry Handling | SpotifyAPI-NET"><meta data-react-helmet="true" name="description" content="In Error Handling, we already found out that requests can fail. We provide a way to automatically retry requests via retry handlers. Note that, by default, no retries are performed."><meta data-react-helmet="true" property="og:description" content="In Error Handling, we already found out that requests can fail. We provide a way to automatically retry requests via retry handlers. Note that, by default, no retries are performed."><link data-react-helmet="true" rel="shortcut icon" href="/SpotifyAPI-NET/img/favicon.ico"><link data-react-helmet="true" rel="canonical" href="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/retry_handling"><link data-react-helmet="true" rel="alternate" href="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/retry_handling" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/retry_handling" hreflang="x-default"><link rel="stylesheet" href="/SpotifyAPI-NET/assets/css/styles.834af7f3.css">
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padding-bottom--lg"><div class="row"><div class="col docItemCol_3FnS"><div class="docItemContainer_33ec"><article><span class="badge badge--secondary">Version: 6.X</span><div class="tocCollapsible_1PrD tocMobile_3Hoh"><button type="button" class="clean-btn tocCollapsibleButton_2O1e">On this page</button></div><div class="markdown"><header><h1 class="h1Heading_27L5">Retry Handling</h1></header><p>In <a href="/SpotifyAPI-NET/docs/error_handling">Error Handling</a>, we already found out that requests can fail. We provide a way to automatically retry requests via retry handlers. Note that, by default, no retries are performed.</p><div class="codeBlockContainer_K1bP"><div class="codeBlockContent_hGly csharp"><pre tabindex="0" class="prism-code language-csharp codeBlock_23N8 thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_39YC"><span class="token-line" style="color:#bfc7d5"><span class="token plain">var config = SpotifyClientConfig</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> .CreateDefault()</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> .WithRetryHandler(new YourCustomRetryHandler())</span></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_Ue-o clean-btn">Copy</button></div></div><p><a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/blob/master/SpotifyAPI.Web/Http/Interfaces/IRetryHandler.cs" target="_blank" rel="noopener noreferrer"><code>IRetryHandler</code></a> only needs one function:</p><div class="codeBlockContainer_K1bP"><div class="codeBlockContent_hGly csharp"><pre tabindex="0" class="prism-code language-csharp codeBlock_23N8 thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_39YC"><span class="token-line" style="color:#bfc7d5"><span class="token plain">public class YourCustomRetryHandler : IRetryHandler</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">{</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> public Task&lt;IResponse&gt; HandleRetry(IRequest request, IResponse response, IRetryHandler.RetryFunc retry)</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> {</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // request is the sent request and response is the received response, obviously</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // don&#x27;t retry:</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> return response;</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // retry once:</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> var newResponse = retry(request);</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> return newResponse;</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // use retry as often as you want, make sure to return a response</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> }</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">}</span></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_Ue-o clean-btn">Copy</button></div></div><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_2LWZ" id="simpleretryhandler"></a>SimpleRetryHandler<a class="hash-link" href="#simpleretryhandler" title="Direct link to heading">#</a></h2><p>A <code>SimpleRetryHandler</code> is included, which contains the following retry logic:</p><ul><li>Retries the (configurable) status codes: 500, 502, 503 and 429.</li><li><code>RetryAfter</code> - Specifies the delay between retried calls.</li><li><code>RetryTimes</code> - Specifies the maxiumum amount of performed retries per call.</li><li><code>TooManyRequestsConsumesARetry</code> - Whether a failure of type &quot;Too Many Requests&quot; should use up one of the retry attempts.</li></ul><div class="codeBlockContainer_K1bP"><div class="codeBlockContent_hGly csharp"><pre tabindex="0" class="prism-code language-csharp codeBlock_23N8 thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_39YC"><span class="token-line" style="color:#bfc7d5"><span class="token plain">var config = SpotifyClientConfig</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> .CreateDefault()</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> .WithRetryHandler(new SimpleRetryHandler() { RetryAfter = TimeSpan.FromSeconds(1) });</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">var spotify = new SpotifyClient(config);</span></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_Ue-o clean-btn">Copy</button></div></div></div><footer class="row docusaurus-mt-lg"><div class="col"><a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/edit/master/SpotifyAPI.Docs/docs/retry_handling.md" target="_blank" rel="noreferrer noopener"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_2_ui" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_3DPF">Last updated on <b><time datetime="2022-05-19T04:07:29.000Z">5/19/2022</time></b> by <b>svr333</b></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/SpotifyAPI-NET/docs/pagination"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">« Pagination</div></a></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/SpotifyAPI-NET/docs/iplayableitem"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">IPlayableItem »</div></a></div></nav></div></div><div class="col col--3"><div class="tableOfContents_35-E thin-scrollbar"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#simpleretryhandler" class="table-of-contents__link">SimpleRetryHandler</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2022 Jonas Dellinger. Built with Docusaurus.</div></div></div></footer></div>
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