package main

import (
	"git.hpds.cc/pavement/hpds_node"
	"log"
	"os"
)

func main() {
	sf := hpds_node.NewStreamFunction(
		"echo-sf",
		hpds_node.WithMqAddr("localhost:27187"),
		hpds_node.WithObserveDataTags(0x33),
		hpds_node.WithCredential("token:z2"),
	)
	defer sf.Close()

	// set handler
	sf.SetHandler(handler)

	// start
	err := sf.Connect()
	if err != nil {
		log.Fatalf("[sf] connect err=%v", err)
		os.Exit(1)
	}

	select {}
}

func handler(data []byte) (byte, []byte) {
	val := string(data)
	log.Printf(">> [streamFunction] got tag=0x33, data=%s", val)
	return 0x0, nil
}