implement jwt claims

core/jwt_claims.go

@@ -86,7 +86,7 @@ func ClaimExpired(claims jwt.RegisteredClaims) error {
 	if claims.ExpiresAt == nil {
 		return errors.New("claim exp is nil")
 	}
-	if claims.ExpiresAt.Time.Before(time.Now()) {
+	if claims.ExpiresAt.Time.After(time.Now()) {
 		return nil
 	}
 	return errors.New("claim expired")