From 582a0114c97e9f5e640d42288fb48eccb50e4bd1 Mon Sep 17 00:00:00 2001
From: Jorge de los Santos <tebayoso@gmail.com>
Date: Thu, 16 May 2024 11:50:51 -0300
Subject: [PATCH] fix: error with undefined choices in new conversations
 (closes #202)

-Added safe navigation to an object that might be undefined on an empty conversation.
-Fixes #201
---
 packages/search/src/lib/approaches/chat-read-retrieve-read.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/search/src/lib/approaches/chat-read-retrieve-read.ts b/packages/search/src/lib/approaches/chat-read-retrieve-read.ts
index a8e395d2..ca694338 100644
--- a/packages/search/src/lib/approaches/chat-read-retrieve-read.ts
+++ b/packages/search/src/lib/approaches/chat-read-retrieve-read.ts
@@ -107,14 +107,14 @@ export class ChatReadRetrieveRead extends ApproachBase implements ChatApproach {
           {
             index: 0,
             delta: {
-              content: chunk.choices[0].delta.content ?? '',
+              content: chunk.choices[0]?.delta.content ?? '',
               role: 'assistant' as const,
               context: {
                 data_points: id === 0 ? { text: dataPoints } : undefined,
                 thoughts: id === 0 ? thoughts : undefined,
               },
             },
-            finish_reason: chunk.choices[0].finish_reason,
+            finish_reason: chunk.choices[0]?.finish_reason,
           },
         ],
         object: 'chat.completion.chunk' as const,