From 23a24714bee6a69bcb819c09015c695882676dd2 Mon Sep 17 00:00:00 2001
From: Ibrahim Ahmed <abeahmed2@gmail.com>
Date: Fri, 31 Jan 2025 12:21:52 -0800
Subject: [PATCH] Add 'Promise<never>' to ConsumerCallbackFn to warn users when
 passing in async functions to consume.callback

---
 jetstream/src/types.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jetstream/src/types.ts b/jetstream/src/types.ts
index a65d18d5..759cc993 100644
--- a/jetstream/src/types.ts
+++ b/jetstream/src/types.ts
@@ -463,7 +463,7 @@ export type IdleHeartbeat = {
   idle_heartbeat?: number;
 };
 
-export type ConsumerCallbackFn = (r: JsMsg) => void;
+export type ConsumerCallbackFn = (r: JsMsg) => void | Promise<never>;
 export type ConsumeCallback = {
   /**
    * Process messages using a callback instead of an iterator. Note that when using callbacks,