From 51756cbde90e331f13613d99a4b9a3434115b57d Mon Sep 17 00:00:00 2001
From: 1devNdogs <vsalgado.a@gmail.com>
Date: Fri, 18 Feb 2022 17:12:37 -0300
Subject: [PATCH] Add blockHash param to getHeader custom derive. (#7004)

---
 packages/apps-config/src/api/spec/subspace.ts | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/packages/apps-config/src/api/spec/subspace.ts b/packages/apps-config/src/api/spec/subspace.ts
index 069bec22d5..ba820edd98 100644
--- a/packages/apps-config/src/api/spec/subspace.ts
+++ b/packages/apps-config/src/api/spec/subspace.ts
@@ -83,14 +83,12 @@ function getHeader (
   instanceId: string,
   api: ApiInterfaceRx
 ): () => Observable<HeaderExtended> {
-  return memo(
-    instanceId,
-    (): Observable<HeaderExtended> =>
-      combineLatest([api.rpc.chain.getHeader()]).pipe(
-        map(([header]): HeaderExtended => {
-          return createHeaderExtended(header.registry, header, api);
-        })
-      )
+  return memo(instanceId, (blockHash: Uint8Array | string): Observable<HeaderExtended | undefined> =>
+    combineLatest([api.rpc.chain.getHeader(blockHash)]).pipe(
+      map(([header]): HeaderExtended => {
+        return createHeaderExtended(header.registry, header, api);
+      })
+    )
   );
 }