title: Zuul proxy add parameter to request url
body: <p>I use ZuulFilter to intercept request calls. I need to change the url of request call by adding additional parameter like this.</p>
  
  <p>original request</p>
  
  <pre><code>Http://localhost:8080/home?username=Paul
  </code></pre>
  
  <p>after adding new parameter</p>
  
  <pre><code>Http://localhost:8080/home?username=Paul&amp;authenticated=true
  </code></pre>
  
  <p>I don't need to add this additional parameter to the header. I tried using <code>setRequestQueryParams</code> to add my new parameter to request url but it didn't work.</p>
  
  <p>Could you tell me how to add new parameter to url using zuul proxy?</p>