spring_post_05a.java

@Autowired
@Output(OUTPUT)
private MessageChannel messageChannel;

@Value("${message}")
private String message;

@Description("Post new reservations using Spring Cloud Stream")
@RequestMapping(method = POST)
public void acceptNewReservations(@RequestBody Reservation r) {
    Message<String> build = withPayload(r.getReservationName()).build();
    this.messageChannel.send(build);
}