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<h1 id="slash-handler">Slash handler</h1>
<p>The router works with precise matches. If a route is defined without a trailing slash, for example, it won&apos;t match a request with a slash.</p>
<pre><code class="lang-clj">(<span class="hljs-name">require</span> &apos;[reitit.ring <span class="hljs-symbol">:as</span> ring])
(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> app
(<span class="hljs-name">ring/ring-handler</span>
(<span class="hljs-name">ring/router</span>
[<span class="hljs-string">&quot;/ping&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})])))
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/ping/&quot;</span>})
<span class="hljs-comment">; nil</span>
</code></pre>
<p>Sometimes it is desirable that paths with and without a trailing slash are recognized as the same.</p>
<p>Setting the <code>redirect-trailing-slash-handler</code> as a second argument to <code>ring-handler</code>:</p>
<pre><code class="lang-clj">(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> app
(<span class="hljs-name">ring/ring-handler</span>
(<span class="hljs-name">ring/router</span>
[[<span class="hljs-string">&quot;/ping&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]
[<span class="hljs-string">&quot;/pong/&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]])
(<span class="hljs-name">ring/redirect-trailing-slash-handler</span>)))
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/ping/&quot;</span>})
<span class="hljs-comment">; {:status 308, :headers {&quot;Location&quot; &quot;/ping&quot;}, :body &quot;&quot;}</span>
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/pong&quot;</span>})
<span class="hljs-comment">; {:status 308, :headers {&quot;Location&quot; &quot;/pong/&quot;}, :body &quot;&quot;}</span>
</code></pre>
<p><code>redirect-trailing-slash-handler</code> accepts an optional <code>:method</code> parameter that allows configuring how (whether) to handle missing/extra slashes. The default is to handle both.</p>
<pre><code class="lang-clj">(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> app
(<span class="hljs-name">ring/ring-handler</span>
(<span class="hljs-name">ring/router</span>
[[<span class="hljs-string">&quot;/ping&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]
[<span class="hljs-string">&quot;/pong/&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]])
<span class="hljs-comment">; only handle extra trailing slash</span>
(<span class="hljs-name">ring/redirect-trailing-slash-handler</span> {<span class="hljs-symbol">:method</span> <span class="hljs-symbol">:strip</span>})))
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/ping/&quot;</span>})
<span class="hljs-comment">; {:status 308, :headers {&quot;Location&quot; &quot;/ping&quot;}, :body &quot;&quot;}</span>
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/pong&quot;</span>})
<span class="hljs-comment">; nil</span>
</code></pre>
<pre><code class="lang-clj">(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> app
(<span class="hljs-name">ring/ring-handler</span>
(<span class="hljs-name">ring/router</span>
[[<span class="hljs-string">&quot;/ping&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]
[<span class="hljs-string">&quot;/pong/&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]])
<span class="hljs-comment">; only handle missing trailing slash</span>
(<span class="hljs-name">ring/redirect-trailing-slash-handler</span> {<span class="hljs-symbol">:method</span> <span class="hljs-symbol">:add</span>})))
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/ping/&quot;</span>})
<span class="hljs-comment">; nil</span>
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/pong&quot;</span>})
<span class="hljs-comment">; {:status 308, :headers {&quot;Location&quot; &quot;/pong/&quot;}, :body &quot;&quot;}</span>
</code></pre>
<p><code>redirect-trailing-slash-handler</code> can be composed with the default handler using <code>ring/routes</code> for more correct http error responses:</p>
<pre><code class="lang-clj">(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> app
(<span class="hljs-name">ring/ring-handler</span>
(<span class="hljs-name">ring/router</span>
[[<span class="hljs-string">&quot;/ping&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]
[<span class="hljs-string">&quot;/pong/&quot;</span> (<span class="hljs-name"><span class="hljs-builtin-name">constantly</span></span> {<span class="hljs-symbol">:status</span> <span class="hljs-number">200</span>, <span class="hljs-symbol">:body</span> <span class="hljs-string">&quot;&quot;</span>})]])
(<span class="hljs-name">ring/routes</span>
(<span class="hljs-name">ring/redirect-trailing-slash-handler</span> {<span class="hljs-symbol">:method</span> <span class="hljs-symbol">:add</span>})
(<span class="hljs-name">ring/create-default-handler</span>))))
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/ping/&quot;</span>})
<span class="hljs-comment">; {:status 404, :body &quot;&quot;, :headers {}}</span>
(<span class="hljs-name">app</span> {<span class="hljs-symbol">:uri</span> <span class="hljs-string">&quot;/pong&quot;</span>})
<span class="hljs-comment">; {:status 308, :headers {&quot;Location&quot; &quot;/pong/&quot;}, :body &quot;&quot;}</span>
</code></pre>
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