From 14bd1b5404f85f9cfff27843b311a35cf0079b02 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=8D=E5=90=83=E8=BE=A3=E4=B8=8D=E5=96=9D=E9=85=92?=
 <11326806+wxlzmt@users.noreply.github.com>
Date: Tue, 27 Aug 2024 17:41:59 +0800
Subject: [PATCH] fix: toolCall.function.arguments maybe undefined (#2545)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

当arg===undefined时，会导致 currentTool.function.arguments += arg; 字符串拼接出问题。
---
 .../service/core/workflow/dispatch/agent/runTool/toolChoice.ts  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/service/core/workflow/dispatch/agent/runTool/toolChoice.ts b/packages/service/core/workflow/dispatch/agent/runTool/toolChoice.ts
index d0ddd4cae..1fc5fd8df 100644
--- a/packages/service/core/workflow/dispatch/agent/runTool/toolChoice.ts
+++ b/packages/service/core/workflow/dispatch/agent/runTool/toolChoice.ts
@@ -432,7 +432,7 @@ async function streamResponse({
       }
 
       /* arg 插入最后一个工具的参数里 */
-      const arg: string = toolCall?.function?.arguments;
+      const arg: string = toolCall?.function?.arguments ?? '';
       const currentTool = toolCalls[toolCalls.length - 1];
 
       if (currentTool) {