Spring Cloud Stream Binder - Sending Persistent Messages with StreamBridge

Hi @timob,
The Spring Cloud Stream binder actually only supports sending of Persistent messages. When you look at the show client ... stats results keep in mind that they are from the perspective of the broker. So Received is actually received by the broker and sent by the application.

I tested this quickly locally and see streambridge publishing Persistent messages via show client ... stats.

Hope that helps!

Hi @timob,
I'm just using this simple function and publishing to it using the "Try-Me" functionality in the PubSub+ Manager (publish to the uppercase-in-0 topic if you haven't configured the binding. But at the end of the day it shouldn't matter what you're sending. The Cloud Stream binder doesn't support direct messaging and will only publish Persistent messages. If you turn off the ability to "Send Guaranteed Messages" in your client-profile you'll even see that it fails to connect.

Can you share a screenshot of what you're seeing from the show client XXXX stats command?

    @Bean 
    public Consumer<String> uppercase(StreamBridge sb){
        return v -> {
            System.out.println("Uppercasing: " + v);
            sb.send("foo/uppercase", v.toUpperCase());
            sb.send("foo/lowercase", v);
        };
    }