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<h1 id="route-conflicts">Route Conflicts</h1>
<p>We should fast if a router contains conflicting paths or route names. </p>
<p>When a <code>Router</code> is created via <code>reitit.core/router</code>, both path and route name conflicts are checked automatically. By default, in case of conflict, an <code>ex-info</code> is thrown with a descriptive message. Is some (legacy api) cases, path conflicts are should be allowed and one can override the path conflict resolution via <code>:conflicts</code> router option.</p>
<h2 id="path-conflicts">Path Conflicts</h2>
<p>Routes with path conflicts:</p>
<pre><code class="lang-clj">(<span class="hljs-name">require</span> &apos;[reitit.core <span class="hljs-symbol">:as</span> r])
(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> routes
[[<span class="hljs-string">&quot;/ping&quot;</span>]
[<span class="hljs-string">&quot;/:user-id/orders&quot;</span>]
[<span class="hljs-string">&quot;/bulk/:bulk-id&quot;</span>]
[<span class="hljs-string">&quot;/public/*path&quot;</span>]
[<span class="hljs-string">&quot;/:version/status&quot;</span>]])
</code></pre>
<p>Creating router with defaults:</p>
<pre><code class="lang-clj">(<span class="hljs-name">r/router</span> routes)
<span class="hljs-comment">; CompilerException clojure.lang.ExceptionInfo: Router contains conflicting route paths:</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; /:user-id/orders</span>
<span class="hljs-comment">; -&gt; /public/*path</span>
<span class="hljs-comment">; -&gt; /bulk/:bulk-id</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; /bulk/:bulk-id</span>
<span class="hljs-comment">; -&gt; /:version/status</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; /public/*path</span>
<span class="hljs-comment">; -&gt; /:version/status</span>
<span class="hljs-comment">;</span>
</code></pre>
<p>To ignore the conflicts:</p>
<pre><code class="lang-clj">(<span class="hljs-name">r/router</span>
routes
{<span class="hljs-symbol">:conflicts</span> <span class="hljs-literal">nil</span>})
<span class="hljs-comment">; =&gt; #object[reitit.core$linear_router$reify]</span>
</code></pre>
<p>To just log the conflicts:</p>
<pre><code class="lang-clj">(<span class="hljs-name">r/router</span>
routes
{<span class="hljs-symbol">:conflicts</span> (<span class="hljs-name"><span class="hljs-builtin-name">fn</span></span> [conflicts]
(<span class="hljs-name">println</span> (<span class="hljs-name">r/path-conflicts-str</span> conflicts)))})
<span class="hljs-comment">; Router contains conflicting route paths:</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; /:user-id/orders</span>
<span class="hljs-comment">; -&gt; /public/*path</span>
<span class="hljs-comment">; -&gt; /bulk/:bulk-id</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; /bulk/:bulk-id</span>
<span class="hljs-comment">; -&gt; /:version/status</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; /public/*path</span>
<span class="hljs-comment">; -&gt; /:version/status</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">; =&gt; #object[reitit.core$linear_router$reify]</span>
</code></pre>
<h2 id="name-conflicts">Name conflicts</h2>
<p>Routes with name conflicts:</p>
<pre><code class="lang-clj">(<span class="hljs-name"><span class="hljs-builtin-name">def</span></span> routes
[[<span class="hljs-string">&quot;/ping&quot;</span> <span class="hljs-symbol">::ping</span>]
[<span class="hljs-string">&quot;/admin&quot;</span> <span class="hljs-symbol">::admin</span>]
[<span class="hljs-string">&quot;/admin/ping&quot;</span> <span class="hljs-symbol">::ping</span>]])
</code></pre>
<p>Creating router with defaults:</p>
<pre><code class="lang-clj">(<span class="hljs-name">r/router</span> routes)
<span class="hljs-comment">;CompilerException clojure.lang.ExceptionInfo: Router contains conflicting route names:</span>
<span class="hljs-comment">;</span>
<span class="hljs-comment">;:reitit.core/ping</span>
<span class="hljs-comment">;-&gt; /ping</span>
<span class="hljs-comment">;-&gt; /admin/ping</span>
<span class="hljs-comment">;</span>
</code></pre>
<p>There is no way to disable the name conflict resolution.</p>
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