From 61dff99774fe50a537638fcef805283ca32aa6ca Mon Sep 17 00:00:00 2001
From: Alex Vanin <alexey@nspcc.ru>
Date: Tue, 23 Mar 2021 13:03:23 +0300
Subject: [PATCH] [#421] morph/client: Add designate role getter wrapper for
 NeoFSAlphabet role

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
---
 pkg/morph/client/client.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pkg/morph/client/client.go b/pkg/morph/client/client.go
index 29a374fdd..7e78e44dd 100644
--- a/pkg/morph/client/client.go
+++ b/pkg/morph/client/client.go
@@ -217,6 +217,18 @@ func (c *Client) Committee() (keys.PublicKeys, error) {
 	return roleKeys, nil
 }
 
+// NeoFSAlphabetList returns keys that stored in NeoFS Alphabet role. Main chain
+// stores alphabet node keys of inner ring there, however side chain stores both
+// alphabet and non alphabet node keys of inner ring.
+func (c *Client) NeoFSAlphabetList() (keys.PublicKeys, error) {
+	list, err := c.roleList(native.RoleNeoFSAlphabet)
+	if err != nil {
+		return nil, errors.Wrap(err, "can't get alphabet nodes role list")
+	}
+
+	return list, nil
+}
+
 func (c *Client) roleList(r native.Role) (keys.PublicKeys, error) {
 	height, err := c.client.GetBlockCount()
 	if err != nil {