From 30632e9e11d7c384a7bc520f3294c46a5ac7daa4 Mon Sep 17 00:00:00 2001
From: Antoni Spaanderman <56turtle56@gmail.com>
Date: Sat, 22 Jan 2022 15:13:10 +0100
Subject: [PATCH] fix error with invalid chaintips

---
 backend/src/api/bitcoin/bitcoin-api.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/backend/src/api/bitcoin/bitcoin-api.ts b/backend/src/api/bitcoin/bitcoin-api.ts
index b0a04116f..6b7e5b2ac 100644
--- a/backend/src/api/bitcoin/bitcoin-api.ts
+++ b/backend/src/api/bitcoin/bitcoin-api.ts
@@ -41,7 +41,12 @@ class BitcoinApi implements AbstractBitcoinApi {
 
   $getBlockHeightTip(): Promise<number> {
     return this.bitcoindClient.getChainTips()
-      .then((result: IBitcoinApi.ChainTips[]) => result[0].height);
+      .then((result: IBitcoinApi.ChainTips[]) => {
+        const activeTip = result.find(tip => tip.status === 'active');
+        if (activeTip) {
+          return activeTip.height;
+        }
+      });
   }
 
   $getTxIdsForBlock(hash: string): Promise<string[]> {