title: HTTP Response Exception Handling in Spring 5 Reactive
body: <p>I'm developing some reactive microservices using Spring Boot 2 and Spring 5 with WebFlux reactive starter.</p>
  
  <p>I'm facing the following problem: I want to handle all HTTP Statuses that I receive from calling another REST Services and throws an exception when I receive some bad HTTP Status. For example, when I call an endpoint and I receive an 404 HTTP Status, I want to throw an exception and that exception to be handled in some ExceptionHandler class, just like the way it was in Spring 4 with <code>@ControllerAdvice</code>.</p>
  
  <p>What is the right way to do this? Hope to receive some good suggestions.  </p>