scriptoriumadmin/litellm
1
0
Fork 0
mirror of https://github.com/BerriAI/litellm.git synced 2026-09-05 08:07:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 136

fix(bedrock): ensure toolUse.input is always a dict when converting from OpenAI format (#18414)

Browse source 
When some providers (like OpenRouter) return tool call arguments as '""'
(a JSON-encoded empty string), json.loads returns an empty string instead
of a dict. Since Bedrock requires toolUse.input to be a JSON object, this
causes a BedrockException.

This fix adds a type check after json.loads() to ensure the result is
always a dictionary.

Co-authored-by: Krish Dholakia <krrishdholakia@gmail.com>
This commit is contained in:
LouisShark 2026-01-08 03:24:46 +08:00 • committed by GitHub
parent f126f75995
commit ea8a94988f
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
litellm/litellm_core_utils/prompt_templates/factory.py
View file

@ -3176,6 +3176,11 @@ def _convert_to_bedrock_tool_call_invoke(
id = tool["id"]
name = tool["function"].get("name", "")
arguments = tool["function"].get("arguments", "")
arguments_dict = json.loads(arguments) if arguments else {}
# Ensure arguments_dict is always a dict (Bedrock requires toolUse.input to be an object)
# When some providers return arguments: '""' (JSON-encoded empty string), json.loads returns ""
if not isinstance(arguments_dict, dict):
arguments_dict = {}
if not arguments or not arguments.strip():
arguments_dict = {}
else: