From b95f99f130ace6ba105819174f74a8714ae51f2c Mon Sep 17 00:00:00 2001
From: CATS <dev@yaksha3.ai>
Date: Thu, 9 Apr 2026 07:54:10 +0200
Subject: [PATCH] feat(execution_layer): log more detail when JWT auth fails
 (#9051)

Co-Authored-By: CATS <dev@yaksha3.ai>

Co-Authored-By: chonghe <44791194+chong-he@users.noreply.github.com>
---
 beacon_node/execution_layer/src/engine_api.rs      | 2 +-
 beacon_node/execution_layer/src/engine_api/auth.rs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/beacon_node/execution_layer/src/engine_api.rs b/beacon_node/execution_layer/src/engine_api.rs
index 774eac5fe2..9c19e94c0e 100644
--- a/beacon_node/execution_layer/src/engine_api.rs
+++ b/beacon_node/execution_layer/src/engine_api.rs
@@ -79,7 +79,7 @@ impl From<reqwest::Error> for Error {
             e.status(),
             Some(StatusCode::UNAUTHORIZED) | Some(StatusCode::FORBIDDEN)
         ) {
-            Error::Auth(auth::Error::InvalidToken)
+            Error::Auth(auth::Error::InvalidToken(e.to_string()))
         } else {
             Error::HttpClient(e.into())
         }
diff --git a/beacon_node/execution_layer/src/engine_api/auth.rs b/beacon_node/execution_layer/src/engine_api/auth.rs
index af1ca195bd..3a27048b1a 100644
--- a/beacon_node/execution_layer/src/engine_api/auth.rs
+++ b/beacon_node/execution_layer/src/engine_api/auth.rs
@@ -14,7 +14,7 @@ pub const JWT_SECRET_LENGTH: usize = 32;
 #[derive(Debug)]
 pub enum Error {
     JWT(jsonwebtoken::errors::Error),
-    InvalidToken,
+    InvalidToken(String),
     InvalidKey(String),
 }