langchain

0258cb96 - core[patch]: add additionalProperties recursively to oai function if strict (#25169)

core[patch]: add additionalProperties recursively to oai function if strict (#25169) Hello. First of all, thank you for maintaining such a great project. ## Description In https://github.com/langchain-ai/langchain/pull/25123, support for structured_output is added. However, `"additionalProperties": false` needs to be included at all levels when a nested object is generated. error from current code: https://gist.github.com/fufufukakaka/e9b475300e6934853d119428e390f204 ``` BadRequestError: Error code: 400 - {'error': {'message': "Invalid schema for response_format 'JokeWithEvaluation': In context=('properties', 'self_evaluation'), 'additionalProperties' is required to be supplied and to be false", 'type': 'invalid_request_error', 'param': 'response_format', 'code': None}} ``` Reference: [Introducing Structured Outputs in the API](https://openai.com/index/introducing-structured-outputs-in-the-api/) ```json { "model": "gpt-4o-2024-08-06", "messages": [ { "role": "system", "content": "You are a helpful math tutor." }, { "role": "user", "content": "solve 8x + 31 = 2" } ], "response_format": { "type": "json_schema", "json_schema": { "name": "math_response", "strict": true, "schema": { "type": "object", "properties": { "steps": { "type": "array", "items": { "type": "object", "properties": { "explanation": { "type": "string" }, "output": { "type": "string" } }, "required": ["explanation", "output"], "additionalProperties": false } }, "final_answer": { "type": "string" } }, "required": ["steps", "final_answer"], "additionalProperties": false } } } } ``` In the current code, `"additionalProperties": false` is only added at the last level. This PR introduces the `_add_additional_properties_key` function, which recursively adds `"additionalProperties": false` to the entire JSON schema for the request. Twitter handle: `@fukkaa1225` Thank you! --------- Co-authored-by: Bagatur <baskaryan@gmail.com>