Use direct reply queue

transport/rabbitmq/connection.go

@@ -20,7 +20,6 @@ var (
 type rabbitMQConn struct {
 	Connection *amqp.Connection
 	Channel    *rabbitMQChannel
-	ExchangeChannel *rabbitMQChannel
 	notify     chan bool
 	exchange   string
 	url        string
@@ -111,10 +110,6 @@ func (r *rabbitMQConn) tryToConnect() error {
 		return err
 	}
 	r.Channel.DeclareExchange(r.exchange)
-	r.ExchangeChannel, err = newRabbitChannel(r.Connection)
-	if err != nil {
-		return err
-	}
 	return nil
 }
 
@@ -143,5 +138,5 @@ func (r *rabbitMQConn) Consume(queue string) (<-chan amqp.Delivery, error) {
 }
 
 func (r *rabbitMQConn) Publish(exchange, key string, msg amqp.Publishing) error {
-	return r.ExchangeChannel.Publish(exchange, key, msg)
+	return r.Channel.Publish(exchange, key, msg)
 }

transport/rabbitmq/rabbitmq.go

@@ -12,6 +12,10 @@ import (
 	"github.com/myodc/go-micro/transport"
 )
 
+const (
+	directReplyQueue = "amq.rabbitmq.reply-to"
+)
+
 type rmqtport struct {
 	conn  *rabbitMQConn
 	addrs []string
@@ -236,12 +240,10 @@ func (r *rmqtport) Listen(addr string) (transport.Listener, error) {
 }
 
 func NewTransport(addrs []string, opt ...transport.Option) transport.Transport {
-	id, _ := uuid.NewV4()
-
 	return &rmqtport{
 		conn:     newRabbitMQConn("", addrs),
 		addrs:    addrs,
-		replyTo:  id.String(),
+		replyTo:  directReplyQueue,
 		inflight: make(map[string]chan amqp.Delivery),
 	}
 }