RSocket Input/Output cardinality not being handled correctly (FNF not working)

Given the following sample:

@MessageMapping("fire-and-forget.{identifier}")
public Mono<Void> fireAndForget(@DestinationVariable String identifier) {
   log.info("Fire-and-forget is correctly being invoked with identifier: {}", identifier);
   return Mono.empty();
}

I would expect to invoke this as a Fire-and-forget interaction, e.g: _Following 2 examples uses the RSocket Client CLI: https://github.com/making/rsc_

java -jar rsc.jar --debug –fnf --route fire-and-forget.foo-bar tcp://localhost:7000

However nothing seems to happen, if I change it to a Request/response interaction instead, a log message is being written in my console output.

java -jar rsc.jar --debug –request --route fire-and-forget.foo-bar tcp://localhost:7000

2020-06-19 14:09:46.805  INFO 26120 --- [ctor-http-nio-4] c.e.r.RSocketController                  : Fire-and-forget is correctly being invoked with identifier: foo-bar

For a full sample, checkout my code sample at https://github.com/dnijssen/rsocket-fire-and-forget and look at the RSocketController

[dnijssen]

Thank for fixing it so quick @making , i’ve tested it and works now 😉

[bclozel]

Thanks a lot for the quick fix @making !