title: Variable number of route params in express?
body: <p><a href="https://cex.io/rest-api#tickers-all" rel="nofollow noreferrer">cex.io's RESTful API</a> has an interesting route with a variable amount of parameters returning pairs of all currencies given. </p>
  
  <p>How is this achieved in express?</p>
  
  <p>Here's a pseudocode-type example of what I mean...</p>
  
  <pre><code>app.get('/pairs/:arg1/:arg2/:argn...', function(req, res, next) {
      // app logic
  });
  </code></pre>