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<title data-react-helmet="true">Implicit Grant | SpotifyAPI-NET</title><meta data-react-helmet="true" property="og:url" content="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/implicit_grant"><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="Implicit Grant | SpotifyAPI-NET"><meta data-react-helmet="true" name="description" content="Implicit grant flow is for clients that are implemented entirely using JavaScript and running in the resource owner’s browser. You do not need any server-side code to use it. Rate limits for requests are improved but there is no refresh token provided. This flow is described in RFC-6749."><meta data-react-helmet="true" property="og:description" content="Implicit grant flow is for clients that are implemented entirely using JavaScript and running in the resource owner’s browser. You do not need any server-side code to use it. Rate limits for requests are improved but there is no refresh token provided. This flow is described in RFC-6749."><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/implicit_grant"><link data-react-helmet="true" rel="alternate" href="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/implicit_grant" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://johnnycrazy.github.io/SpotifyAPI-NET/docs/implicit_grant" hreflang="x-default"><link rel="stylesheet" href="/SpotifyAPI-NET/assets/css/styles.834af7f3.css">
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<div><a href="#" class="skipToContent_1oUP">Skip to main content</a></div><nav class="navbar navbar--fixed-top"><div class="navbar__inner"><div class="navbar__items"><button aria-label="Navigation bar toggle" class="navbar__toggle clean-btn" type="button" tabindex="0"><svg width="30" height="30" viewBox="0 0 30 30" aria-hidden="true"><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></button><a class="navbar__brand" href="/SpotifyAPI-NET/"><img src="/SpotifyAPI-NET/img/logo.svg" alt="SpotifyAPI-NET" class="themedImage_1VuW themedImage--light_3UqQ navbar__logo"><img src="/SpotifyAPI-NET/img/logo.svg" alt="SpotifyAPI-NET" class="themedImage_1VuW themedImage--dark_hz6m navbar__logo"><b class="navbar__title">SpotifyAPI-NET</b></a><div class="navbar__item dropdown dropdown--hoverable"><a class="navbar__item navbar__link">Docs</a><ul class="dropdown__menu"><li><a class="dropdown__link" 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href="/SpotifyAPI-NET/docs/getting_started">Getting Started</a></li><li class="menu__list-item menu__list-item--collapsed"><a class="menu__link menu__link--sublist" href="#" tabindex="0">Guides</a></li><li class="menu__list-item"><a class="menu__link menu__link--sublist menu__link--active" href="#" tabindex="0">Authentication Guides</a><ul style="display:block;overflow:visible;height:auto" class="menu__list"><li class="menu__list-item"><a class="menu__link" tabindex="0" href="/SpotifyAPI-NET/docs/auth_introduction">Introduction</a></li><li class="menu__list-item"><a class="menu__link" tabindex="0" href="/SpotifyAPI-NET/docs/client_credentials">Client Credentials</a></li><li class="menu__list-item"><a aria-current="page" class="menu__link menu__link--active active" tabindex="0" href="/SpotifyAPI-NET/docs/implicit_grant">Implicit Grant</a></li><li class="menu__list-item"><a class="menu__link" tabindex="0" href="/SpotifyAPI-NET/docs/authorization_code">Authorization Code</a></li><li 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tocCollapsibleButton_2O1e">On this page</button></div><div class="markdown"><header><h1 class="h1Heading_27L5">Implicit Grant</h1></header><blockquote><p>Implicit grant flow is for clients that are implemented entirely using JavaScript and running in the resource owner’s browser. You do not need any server-side code to use it. Rate limits for requests are improved but there is no refresh token provided. This flow is described in <a href="http://tools.ietf.org/html/rfc6749#section-4.2" target="_blank" rel="noopener noreferrer">RFC-6749</a>.</p></blockquote><p>This flow is useful for getting a user access token for a short timespan.</p><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_2LWZ" id="existing-web-server"></a>Existing Web-Server<a class="hash-link" href="#existing-web-server" title="Direct link to heading">#</a></h2><p>If you are already in control of a Web-Server (like <code>ASP.NET</code>), you can start the flow by generating a login uri:</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">// Make sure "http://localhost:5000" is in your applications redirect URIs!</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">var loginRequest = new LoginRequest(</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> new Uri("http://localhost:5000"),</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> "ClientId",</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> LoginRequest.ResponseType.Token</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><span class="token-line" style="color:#bfc7d5"><span class="token plain"> Scope = new[] { Scopes.PlaylistReadPrivate, Scopes.PlaylistReadCollaborative }</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">var uri = loginRequest.ToUri();</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">// Redirect user to uri via your favorite web-server</span></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_Ue-o clean-btn">Copy</button></div></div><p>When the user is redirected to the generated uri, they will have to login with their Spotify account and confirm that your application wants to access their user data. Once confirmed, they will be redirected to <code>http://localhost:5000</code> and the fragment identifier (<code>#</code> part of URI) will contain an access token.</p><div class="admonition admonition-warning alert alert--danger"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="16" viewBox="0 0 12 16"><path fill-rule="evenodd" d="M5.05.31c.81 2.17.41 3.38-.52 4.31C3.55 5.67 1.98 6.45.9 7.98c-1.45 2.05-1.7 6.53 3.53 7.7-2.2-1.16-2.67-4.52-.3-6.61-.61 2.03.53 3.33 1.94 2.86 1.39-.47 2.3.53 2.27 1.67-.02.78-.31 1.44-1.13 1.81 3.42-.59 4.78-3.42 4.78-5.56 0-2.84-2.53-3.22-1.25-5.61-1.52.13-2.03 1.13-1.89 2.75.09 1.08-1.02 1.8-1.86 1.33-.67-.41-.66-1.19-.06-1.78C8.18 5.31 8.68 2.45 5.05.32L5.03.3l.02.01z"></path></svg></span>warning</h5></div><div class="admonition-content"><p>Note, this parameter is not sent to the server! You need JavaScript to access it.</p></div></div><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_2LWZ" id="using-custom-protocols"></a>Using custom Protocols<a class="hash-link" href="#using-custom-protocols" title="Direct link to heading">#</a></h2><p>This flow can also be used with custom protocols instead of <code>http</code>/<code>https</code>. This is especially interesting for <code>UWP</code> apps, since your able to register custom protocol handlers quite easily.</p><img alt="protocol handlers" src="/SpotifyAPI-NET/img/auth_protocol_handlers.png"><p>The process is very similar, you generate a uri and open it for the user:</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">// Make sure "spotifyapi.web.oauth://token" is in your applications redirect URIs!</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">var loginRequest = new LoginRequest(</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> new Uri("spotifyapi.web.oauth://token"),</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> "ClientId",</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> LoginRequest.ResponseType.Token</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><span class="token-line" style="color:#bfc7d5"><span class="token plain"> Scope = new[] { Scopes.PlaylistReadPrivate, Scopes.PlaylistReadCollaborative }</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">var uri = loginRequest.ToUri();</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">// This call requires Spotify.Web.Auth</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">BrowserUtil.Open(uri);</span></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_Ue-o clean-btn">Copy</button></div></div><p>After the user has logged in and consented your app, your <code>UWP</code> app will receive a callback:</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">protected override void OnActivated(IActivatedEventArgs args)</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"> if (args.Kind == ActivationKind.Protocol)</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"> ProtocolActivatedEventArgs eventArgs = args as ProtocolActivatedEventArgs;</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> var publisher = Mvx.IoCProvider.Resolve<ITokenPublisherService>();</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // This Uri contains your access token in the Fragment part</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> Console.WriteLine(eventArgs.Uri);</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><p>For a real example, have a look at the <a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/tree/master/SpotifyAPI.Web.Examples/Example.UWP" target="_blank" rel="noopener noreferrer">Example.UWP</a>, <a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/tree/master/SpotifyAPI.Web.Examples/Example.ASP" target="_blank" rel="noopener noreferrer">Example.ASP</a> or <a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/tree/master/SpotifyAPI.Web.Examples/Example.ASPBlazor" target="_blank" rel="noopener noreferrer">Example.ASPBlazor</a></p><header><h1 class="h1Heading_27L5">Using Spotify.Web.Auth</h1></header><p>For cross-platform CLI and desktop apps (non <code>UWP</code> apps), custom protocol handlers are sometimes not an option. The fallback here is a small cross-platform embedded web server running on <code>http://localhost:5000</code> serving JavaScript. The JavaScript will parse the fragment part of the URI and sends a request to the web server in the background. The web server then notifies your appliciation via an event.</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">private static EmbedIOAuthServer _server;</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">public static async Task Main()</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"> // Make sure "http://localhost:5000/callback" is in your spotify application as redirect uri!</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> _server = new EmbedIOAuthServer(new Uri("http://localhost:5000/callback"), 5000);</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> await _server.Start();</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> _server.ImplictGrantReceived += OnImplicitGrantReceived;</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> _server.ErrorReceived += OnErrorReceived;</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> var request = new LoginRequest(_server.BaseUri, "ClientId", LoginRequest.ResponseType.Token)</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"> Scope = new List<string> { Scopes.UserReadEmail }</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"> BrowserUtil.Open(request.ToUri());</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" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">private static async Task OnImplicitGrantReceived(object sender, ImplictGrantResponse 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"> await _server.Stop();</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> var spotify = new SpotifyClient(response.AccessToken);</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // do calls with Spotify</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" style="display:inline-block">
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</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">private static async Task OnErrorReceived(object sender, string error, string state)</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"> Console.WriteLine($"Aborting authorization, error received: {error}");</span></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> await _server.Stop();</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><p>For real examples, have a look at <a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/tree/master/SpotifyAPI.Web.Examples/Example.CLI.PersistentConfig" target="_blank" rel="noopener noreferrer">Example.CLI.PersistentConfig</a> and <a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/tree/master/SpotifyAPI.Web.Examples/Example.CLI.CustomHTML" target="_blank" rel="noopener noreferrer">Example.CLI.CustomHTML</a></p></div><footer class="row docusaurus-mt-lg"><div class="col"><a href="https://github.com/JohnnyCrazy/SpotifyAPI-NET/edit/master/SpotifyAPI.Docs/docs/implicit_grant.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="2022-05-19T04:04:38.000Z">5/19/2022</time></b> by <b>dependabot[bot]</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/client_credentials"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">« Client Credentials</div></a></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/SpotifyAPI-NET/docs/authorization_code"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Authorization Code »</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="#existing-web-server" class="table-of-contents__link">Existing Web-Server</a></li><li><a href="#using-custom-protocols" class="table-of-contents__link">Using custom Protocols</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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