title: ExpressJS route regex
body: <p>I have route:</p>
  
  <pre><code>app.get('/:id', routes.action);
  </code></pre>
  
  <p>It works fine, but I need skip <code>robot.txt</code> and other (humans ....)
  I create regex (only chars or number):</p>
  
  <pre><code>/^[a-z]{0,10}$/
  </code></pre>
  
  <p>How I can route only ids, which match this regex?</p>