From caddf391e0ed4b45653bf0d3d19e2abb8ccd246d Mon Sep 17 00:00:00 2001
From: texuf <texuf.eth@gmail.com>
Date: Tue, 11 Jun 2024 14:06:34 -0700
Subject: [PATCH] add spaceIdFromChannelId helper (#138)

---
 packages/sdk/src/id.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/sdk/src/id.ts b/packages/sdk/src/id.ts
index 1f9130ea3..7f547f1fe 100644
--- a/packages/sdk/src/id.ts
+++ b/packages/sdk/src/id.ts
@@ -132,6 +132,11 @@ export const makeDefaultChannelStreamId = (spaceContractAddressOrId: string): st
     return makeStreamId(StreamPrefix.Channel, spaceContractAddressOrId + '0'.repeat(22))
 }
 
+export const spaceIdFromChannelId = (channelId: string): string => {
+    check(isChannelStreamId(channelId), 'Invalid channel id: ' + channelId)
+    return makeStreamId(StreamPrefix.Space, channelId.slice(2, 42) + '0'.repeat(22))
+}
+
 export const isDefaultChannelId = (streamId: string): boolean => {
     const prefix = streamId.slice(0, 2) as StreamPrefix
     if (prefix !== StreamPrefix.Channel) {