package main import ( "fmt" "time" log "github.com/golang/glog" "github.com/myodc/go-micro/broker" "github.com/myodc/go-micro/cmd" c "github.com/myodc/go-micro/context" "golang.org/x/net/context" ) var ( topic = "go.micro.topic.foo" ) func pub() { tick := time.NewTicker(time.Second) i := 0 for _ = range tick.C { ctx := c.WithMetaData(context.Background(), map[string]string{ "id": fmt.Sprintf("%d", i), }) msg := fmt.Sprintf("%d: %s", i, time.Now().String()) if err := broker.Publish(ctx, topic, []byte(msg)); err != nil { log.Errorf("[pub] failed: %v", err) } else { fmt.Println("[pub] pubbed message:", msg) } i++ } } func sub() { _, err := broker.Subscribe(topic, func(ctx context.Context, msg *broker.Message) { md, _ := c.GetMetaData(ctx) fmt.Println("[sub] received message:", string(msg.Body), "context", md) }) if err != nil { fmt.Println(err) } } func main() { cmd.Init() if err := broker.Init(); err != nil { log.Fatalf("Broker Init error: %v", err) } if err := broker.Connect(); err != nil { log.Fatalf("Broker Connect error: %v", err) } go pub() go sub() <-time.After(time.Second * 10) }