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

for anyone looking at a way to write JSON response body, here's a Kotlin code sample:

fun writeBodyJson(body: Any, exchange: ServerWebExchange) =
    exchange.response.writeWith(
        Jackson2JsonEncoder().encode(
            Mono.just(body),
            exchange.response.bufferFactory(),
            ResolvableType.forInstance(body),
            MediaType.APPLICATION_JSON_UTF8,
            Hints.from(Hints.LOG_PREFIX_HINT, exchange.logPrefix))
    )

not 100% sure that's the way to go though, would like to get some opinions.