title: How to parse a query string in React Router
body: <p>Hello I´m using react router and I need to pass some querystring parameters</p>
  
  <p>tried with</p>
  
  <pre><code>&lt;Route path="/result/:type?/?filter=:filter?" exact strict component={Result}/&gt;
  </code></pre>
  
  <p>I was expecting that to catch urls like</p>
  
  <pre><code>/result
  /result/animals
  /result/cars
  /result/animals?filter=cats,dogs
  /result/cars?filter=sedan,truck
  </code></pre>
  
  <p>what´s the right way to do it? </p>