From 811c92fb6688884b08b44ec14b430fed9f7934f0 Mon Sep 17 00:00:00 2001
From: Chris Gianelloni <wolf31o2@blinklabs.io>
Date: Wed, 17 Sep 2025 17:37:31 -0400
Subject: [PATCH] fix(chainsync): error on nil resp from kupo

Signed-off-by: Chris Gianelloni <wolf31o2@blinklabs.io>
---
 input/chainsync/chainsync.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/input/chainsync/chainsync.go b/input/chainsync/chainsync.go
index 3bd82d2..f918baa 100644
--- a/input/chainsync/chainsync.go
+++ b/input/chainsync/chainsync.go
@@ -578,6 +578,9 @@ func getKupoClient(c *ChainSync) (*kugo.Client, error) {
 			return nil, fmt.Errorf("failed to perform health check: %w", err)
 		}
 	}
+	if resp == nil {
+		return nil, errors.New("health check failed with nil response")
+	}
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {