how to log Spring 5 WebClient call

Question

I\'m trying to log a request using Spring 5 WebClient. Do you have any idea how could I achieve that?

(I\'m using Spring 5 and Spring boot 2)

The code looks

Answer 1

@StasKolodyuk's answer elaborates on the solution from baeldung for logging the response body of a reactive WebClient. Note that

tc.bootstrap(...)

is deprecated in

    HttpClient httpClient = HttpClient
      .create()
      .tcpConfiguration(
        tc -> tc.bootstrap(
          b -> BootstrapHandlers.updateLogSupport(b, new CustomLogger(HttpClient.class))))
      .build()

Another non-deprecated way to add your custom LoggingHandler is (Kotlin)

val httpClient: HttpClient = HttpClient.create().mapConnect { conn, b ->
    BootstrapHandlers.updateLogSupport(b, CustomLogger(HttpClient::class.java))
    conn
}