consumer constructor

consumer.go

@@ -7,6 +7,23 @@ import (
 	"log"
 )
 
+type Consumer interface {
+	Start() chan []byte
+}
+
+type consumeHandler struct {
+	ctx     context.Context
+	client  *Client
+	chanLen int
+}
+
+func (c *consumeHandler) Start() chan []byte {
+	msgCh := make(chan []byte, c.chanLen)
+	go runConsumer(c.ctx, c.client, msgCh)
+
+	return msgCh
+}
+
 func runConsumer(ctx context.Context, client *Client, msgCh chan []byte) {
 	runCtx, cancel := context.WithCancel(ctx)
 	defer cancel()