WebExceptionHandler : How to write a body with Spring Webflux

Question

I want to handle the Exception of my api by adding a WebExceptionHandler. I can change the status code, but I am stuck when i want to change the body of the response : ex adding

Answer 1

Given the answer, to serialize object I use this way :

 Mono db = commonsException.getErrorsResponse().map(errorsResponse -> {

     ObjectMapper objectMapper = new ObjectMapper();
     try {
         return objectMapper.writeValueAsBytes(errorsResponse);
     } catch (JsonProcessingException e) {
          return e.getMessage().getBytes();
     }
}).map(s -> exchange.getResponse().bufferFactory().wrap(s));

exchange.getResponse().getHeaders().add("Content-Type", "application/json");
exchange.getResponse().setStatusCode(commonsException.getHttpStatus());
return exchange.getResponse().writeWith(db);