simple rate limiter

consumer.go

@@ -3,6 +3,7 @@ package rabbit
 import (
 	"context"
 	amqp "github.com/rabbitmq/amqp091-go"
+	"golang.org/x/time/rate"
 	"log"
 	"time"
 )
@@ -11,6 +12,8 @@ func runConsumer(ctx context.Context, queue *Client, msgCh chan []byte) {
 	runCtx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
+	limiter := rate.NewLimiter(rate.Every(time.Millisecond*500), 100)
+
 	deliveries, err := queue.Consume()
 	if err != nil {
 		log.Printf("Could not start consuming: %s\n", err)
@@ -44,11 +47,11 @@ func runConsumer(ctx context.Context, queue *Client, msgCh chan []byte) {
 		case delivery := <-deliveries:
 			msgCh <- delivery.Body
 			log.Printf("Received message: %s\n", delivery.Body)
-			
+
 			if err = delivery.Ack(false); err != nil {
 				log.Printf("Error acknowledging message: %s\n", err)
 			}
-			<-time.After(time.Second * 2)
+			limiter.Wait(runCtx)
 		}
 	}
 }