I have a spring boot 3 and webflux application, i want to use Micrometer, using on controller it is working like

@Override
    public Mono<ResponseEntity<NetworkTokenInformationResponse>> getToken(String gatewayToken, ServerWebExchange exchange) {
        return getTokenizationInformationByGatewayToken.execute(gatewayToken)
                .map(token -> {
                            token.add(linkTo(methodOn(TokenController.class).getToken(token.getGatewayToken(), exchange)).withSelfRel());
                            registry.counter("getToken.controller", "gatewayToken", gatewayToken).increment();
                            return ResponseEntity.ok()
                                    .contentType(MediaType.APPLICATION_JSON)
                                    .body(token);

                        }
                );
    }

but when i try to executre it in a service because it is more simple to be processed nothing happen, this is the code in service

@Slf4j
@AllArgsConstructor
public class GetTokenizationInformationByGatewayToken {

    private final TokenRepositoryAdapter repository;
    private MeterRegistry registry;

    public Mono<NetworkTokenInformationResponse> execute(@NonNull String gatewayToken) {
        log.info(STR."get token from database token {gatewayToken}");
        return repository.findByGatewayToken(gatewayToken)
                .switchIfEmpty(Mono.error(new TokenizationNotFoundException(STR."No network token found in database for gateway token {gatewayToken}")))
                .flatMap(token -> Mono.just(token.networkTokenInformationResponseExtracted()))
                .doOnSuccess(_ ->
                        registry.counter("getToken.controller", "gatewayToken", gatewayToken).increment());
    }
}

We go in the code but nothing available when then i parse the url /actuator/prometeus

application.properties

management.metrics.tags.application=${spring.application.name}
management.endpoints.web.exposure.include=prometheus

Is there soemthing with Flux and Mono blocking it ?