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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Hypertext Application Language</span></h1>
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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><p><b>Hypertext Application Language (HAL)</b> war ein <a href="Request_for_Comments" title="Request for Comments">Request for Comments</a> für <a href="Hypermedia" title="Hypermedia">Hypermedia</a> wie <a href="JavaScript_Object_Notation" class="mw-redirect" title="JavaScript Object Notation">JavaScript Object Notation</a> und <a href="Extensible_Markup_Language" title="Extensible Markup Language">Extensible Markup Language</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Dieser Standard wurde im Juni 2012 vorgeschlagen. Die dazugehörigen Typen von <a href="Multipurpose_Internet_Mail_Extensions" title="Multipurpose Internet Mail Extensions">Multipurpose Internet Mail Extensions</a> waren application/hal+xml und application/hal+json.
</p><p>Die letzte Version der Hypertext Application Language ist am 21. April 2024 verfallen.
</p>
<div class="mw-heading mw-heading2"><h2 id="Beispiele">Beispiele</h2></div>
<p>Ressource
</p>
<div class="mw-highlight mw-highlight-lang-json mw-content-ltr" dir="ltr"><pre><span></span><span class="p">{</span>
<span class="w"> </span><span class="nt">"_links"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"self"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/hal-cookbook"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"id"</span><span class="p">:</span><span class="w"> </span><span class="s2">"hal-cookbook"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"HAL Cookbook"</span>
<span class="p">}</span>
</pre></div>
<p>Eingebettete Ressource
</p>
<div class="mw-highlight mw-highlight-lang-json mw-content-ltr" dir="ltr"><pre><span></span><span class="p">{</span>
<span class="w"> </span><span class="nt">"_links"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"self"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/hal-cookbook"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"_embedded"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"author"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"_links"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"self"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/author/shahadat"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"id"</span><span class="p">:</span><span class="w"> </span><span class="s2">"shahadat"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"Shahadat Hossain Khan"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"homepage"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://author-example.com"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"id"</span><span class="p">:</span><span class="w"> </span><span class="s2">"hal-cookbook"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"HAL Cookbook"</span>
<span class="p">}</span>
</pre></div>
<p>Liste
</p>
<div class="mw-highlight mw-highlight-lang-json mw-content-ltr" dir="ltr"><pre><span></span><span class="p">{</span>
<span class="w"> </span><span class="nt">"_links"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"self"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/hal-cookbook"</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"next"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/hal-case-study"</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"prev"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/json-and-beyond"</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"first"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/catalog"</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"last"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/book/upcoming-books"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"_embedded"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"author"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"_links"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"self"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">"href"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://example.com/api/author/shahadat"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"id"</span><span class="p">:</span><span class="w"> </span><span class="s2">"shahadat"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"Shahadat Hossain Khan"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"homepage"</span><span class="p">:</span><span class="w"> </span><span class="s2">"http://author-example.com"</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">},</span>
<span class="w"> </span><span class="nt">"id"</span><span class="p">:</span><span class="w"> </span><span class="s2">"hal-cookbook"</span><span class="p">,</span>
<span class="w"> </span><span class="nt">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"HAL Cookbook"</span>
<span class="p">}</span>
</pre></div>
<div class="mw-heading mw-heading2"><h2 id="Siehe_auch">Siehe auch</h2></div>
<ul><li><a href="HATEOAS" title="HATEOAS">HATEOAS</a></li>
<li><a href="CURIE" title="CURIE">CURIE</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<ul><li><a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/draft-kelly-json-hal-11">draft-kelly-json-hal-11</a> In: datatracker.ietf.org</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://apigility.org/documentation/api-primer/halprimer">Apigility</a> In: apigility.org</span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.heise.de/hintergrund/Pragmatische-Kuechentricks-fuer-RESTful-HAL-APIs-4963049.html">Pragmatische Küchentricks für RESTful HAL APIs | heise online</a> In: heise.de</span>
</li>
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