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)
@@ -48,7 +51,7 @@ func runConsumer(ctx context.Context, queue *Client, msgCh chan []byte) {
 			if err = delivery.Ack(false); err != nil {
 				log.Printf("Error acknowledging message: %s\n", err)
 			}
-			<-time.After(time.Second * 2)
+			limiter.Wait(runCtx)
 		}
 	}
 }

go.mod

@@ -3,3 +3,5 @@ module repo.nqws.ru/merch-tracker-v2/mt-rabbit
 go 1.25.0
 
 require github.com/rabbitmq/amqp091-go v1.10.0
+
+require golang.org/x/time v0.14.0 // indirect

go.sum

@@ -2,3 +2,5 @@ github.com/rabbitmq/amqp091-go v1.10.0 h1:STpn5XsHlHGcecLmMFCtg7mqq0RnD+zFr4uzuk
 github.com/rabbitmq/amqp091-go v1.10.0/go.mod h1:Hy4jKW5kQART1u+JkDTF9YYOQUHXqMuhrgxOEeS7G4o=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=