From e461743dec623c4d355c5165009f8b764674702d Mon Sep 17 00:00:00 2001
From: abhjaw <54004795+abhjaw@users.noreply.github.com>
Date: Mon, 18 Dec 2023 13:06:31 -0800
Subject: [PATCH] Update kendra.py

Fixing issue - https://github.com/langchain-ai/langchain/issues/14494 to avoid Kendra query ValidationException
---
 libs/community/langchain_community/retrievers/kendra.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/community/langchain_community/retrievers/kendra.py b/libs/community/langchain_community/retrievers/kendra.py
index ec1554c0abf8b..5254ef49bff1d 100644
--- a/libs/community/langchain_community/retrievers/kendra.py
+++ b/libs/community/langchain_community/retrievers/kendra.py
@@ -379,7 +379,7 @@ def create_client(cls, values: Dict[str, Any]) -> Dict[str, Any]:
     def _kendra_query(self, query: str) -> Sequence[ResultItem]:
         kendra_kwargs = {
             "IndexId": self.index_id,
-            "QueryText": query.strip(),
+            "QueryText": query.strip()[0:999], #trucate the query to ensure that there is no validation exception from Kendra.
             "PageSize": self.top_k,
         }
         if self.attribute_filter is not None: