split sign and reset

email/queue.go

@@ -14,6 +14,13 @@ import (
 	"time"
 )
 
+const (
+	EmailRetryExpiration = 5 * time.Minute
+	SesCleanupInterval   = 10 * time.Minute
+	EmailQueueBufferSize = 100
+	MaxEmailsPerSecond   = 13
+)
+
 type Client interface {
 	SendEmail(Email) error
 }
@@ -36,14 +43,9 @@ type SESClient struct {
 	ResetCache *cache.Cache
 }
 
-const (
-	emailRetryExpiration = 5 * time.Minute
-	sesCleanupInterval   = 10 * time.Minute
-)
-
 func NewSESClient() SESClient {
 	return SESClient{
-		ResetCache: cache.New(emailRetryExpiration, sesCleanupInterval),
+		ResetCache: cache.New(EmailRetryExpiration, SesCleanupInterval),
 	}
 }
 
@@ -79,7 +81,7 @@ func (s *SESClient) SendEmail(email Email) error {
 		Source: aws.String(email.Sender),
 	}
 
-	if err = s.ResetCache.Add(email.Recipient, nil, emailRetryExpiration); err != nil {
+	if err = s.ResetCache.Add(email.Recipient, nil, EmailRetryExpiration); err != nil {
 		return err
 	}