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fix(langchain): parse tool_calls from AIMessage #1316

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Merged
hassiebp merged 7 commits into from
Sep 2, 2025
Merged

fix(langchain): parse tool_calls from AIMessage #1316

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22e75e7
Add tool_calls in AIMessage (#1314)
nicolasse Aug 29, 2025
c167ca8
Merge branch 'main' into add-tool-call-parsing
hassiebp Sep 2, 2025
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hassiebp Sep 2, 2025
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hassiebp Sep 2, 2025
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hassiebp Sep 2, 2025
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hassiebp Sep 2, 2025
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hassiebp Sep 2, 2025
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7 changes: 7 additions & 0 deletions langfuse/langchain/CallbackHandler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -912,6 +912,13 @@ def _convert_message_to_dict(self, message: BaseMessage) -> Dict[str, Any]:
message_dict = {"role": "user", "content": message.content}
elif isinstance(message, AIMessage):
message_dict = {"role": "assistant", "content": message.content}

if (
hasattr(message, "tool_calls")
and message.tool_calls is not None
and len(message.tool_calls) > 0
):
message_dict["tool_calls"] = message.tool_calls
elif isinstance(message, SystemMessage):
message_dict = {"role": "system", "content": message.content}
elif isinstance(message, ToolMessage):
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