From 7b14017fbd23737de525336e69d1adb7d195d582 Mon Sep 17 00:00:00 2001
From: Manz Xiao <79624270+manzxiao@users.noreply.github.com>
Date: Fri, 31 Oct 2025 10:44:56 +0800
Subject: [PATCH] Change callModel node to async function

"await" can only be used inside an "async" function
---
 src/oss/langgraph/streaming.mdx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/oss/langgraph/streaming.mdx b/src/oss/langgraph/streaming.mdx
index c86c5a11ca..1fac410f4c 100644
--- a/src/oss/langgraph/streaming.mdx
+++ b/src/oss/langgraph/streaming.mdx
@@ -703,7 +703,7 @@ for await (const [msg, metadata] of await graph.stream(
   });
 
   const graph = new StateGraph(State)
-    .addNode("callModel", (state) => {
+    .addNode("callModel", async (state) => {
       const topic = state.topic;
       console.log("Writing joke...");