Get response time of web client web-flux

Question

Just want to know if there is any way to get the response time of web client of spring web-flux?

Answer 1

you also have the possibility to use elapsed() for this kind of thing

webClient.get().uri("/bla").retrieve()
     .bodyToMono(String.class)
     .elapsed()  // map the stream's time into our streams data
     .doOnNext(tuple -> log.info("Milliseconds for retrieving {}", tuple.getT1()))
     .map(Tuple2::getT2) // after outputting the measurement, return the data only

Note, that elapsed() elapses the whole reactive stream, so if you're doing something before the webClient... part, you should put an elapsed() before that - this resets the timer.