From 81f9d976a92ebcbb6b361a748f31d62728620528 Mon Sep 17 00:00:00 2001
From: Nico Flaig <nflaig@protonmail.com>
Date: Tue, 23 Jul 2024 09:56:56 +0100
Subject: [PATCH] fix: ignore noisy eventstream errors due to DNS resolution
 errors (#6972)

---
 packages/api/src/beacon/client/events.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/api/src/beacon/client/events.ts b/packages/api/src/beacon/client/events.ts
index 35383083ee44..2d63925a738a 100644
--- a/packages/api/src/beacon/client/events.ts
+++ b/packages/api/src/beacon/client/events.ts
@@ -44,7 +44,7 @@ export function getClient(config: ChainForkConfig, baseUrl: string): ApiClient {
         const errEs = err as unknown as EventSourceError;
 
         // Ignore noisy errors due to beacon node being offline
-        if (!errEs.message?.includes("ECONNREFUSED")) {
+        if (!/ECONNREFUSED|EAI_AGAIN/.test(errEs.message ?? "")) {
           // If there is no message it likely indicates that the server closed the connection
           onError?.(new Error(errEs.message ?? "Server closed connection"));
         }