From 666a9cd822679be694875aace3aaf35fe2443d8d Mon Sep 17 00:00:00 2001
From: Tat Dat Duong <david@duong.cz>
Date: Wed, 22 Jan 2025 02:34:36 +0100
Subject: [PATCH] fix(dev): set PORT env var

---
 libs/langgraph-cli/src/cli/dev.node.entrypoint.mts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/langgraph-cli/src/cli/dev.node.entrypoint.mts b/libs/langgraph-cli/src/cli/dev.node.entrypoint.mts
index 0873feb..31acbc1 100644
--- a/libs/langgraph-cli/src/cli/dev.node.entrypoint.mts
+++ b/libs/langgraph-cli/src/cli/dev.node.entrypoint.mts
@@ -24,6 +24,9 @@ const isTracingEnabled = () => {
 
 const options = StartServerSchema.parse(JSON.parse(payload));
 
+// Export PORT to the environment
+process.env.PORT = options.port.toString();
+
 const [{ host, cleanup }, organizationId] = await Promise.all([
   startServer(options),
   (async () => {