From 00c29c3936bda63f56e76d12283bdbbc997dd4ee Mon Sep 17 00:00:00 2001
From: Roy Lee <roylee17@gmail.com>
Date: Mon, 22 Aug 2022 11:08:26 -0700
Subject: [PATCH] multi-account: add forEachKeyScope uitility iterator

---
 rpc/legacyrpc/methods.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/rpc/legacyrpc/methods.go b/rpc/legacyrpc/methods.go
index fd7925f..da4caa1 100644
--- a/rpc/legacyrpc/methods.go
+++ b/rpc/legacyrpc/methods.go
@@ -2110,3 +2110,17 @@ func decodeHexStr(hexStr string) ([]byte, error) {
 	}
 	return decoded, nil
 }
+
+// forEachKeyScope calls the given function with each default key scopes
+// breaking early on error.
+func forEachKeyScope(fn func(scope waddrmgr.KeyScope) error) error {
+
+	for _, scope := range waddrmgr.DefaultKeyScopes {
+		err := fn(scope)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}