title: How to create request with parameters with webflux Webclient?
body: <p>At backend side I have REST controller with POST method:</p>
  <pre><code>@RequestMapping(value = &quot;/save&quot;, method = RequestMethod.POST)
  public Integer save(@RequestParam String name) {
     //do save
     return 0;
  }
  </code></pre>
  <p>How can I create request using <a href="https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html#webflux-client" rel="nofollow noreferrer">WebClient</a> with request parameter?</p>
  <pre><code>WebClient.create(url).post()
      .uri(&quot;/save&quot;)
      //?
      .exchange()
      .block()
      .bodyToMono(Integer.class)
      .block();
  </code></pre>