langchain-ai/langchainjs @langchain/ollama@1.2.2

on GitHub

Patch Changes

• #9900 a9b5059 Thanks @hntrl! - Improved abort signal handling for chat models:

  • Added ModelAbortError class in @langchain/core/errors that contains partial output when a model invocation is aborted mid-stream
  • invoke() now throws ModelAbortError with accumulated partialOutput when aborted during streaming (when using streaming callback handlers)
  • stream() throws a regular AbortError when aborted (since chunks are already yielded to the caller)
  • All provider implementations now properly check and propagate abort signals in both _generate() and _streamResponseChunks() methods
  • Added standard tests for abort signal behavior

• #9900 a9b5059 Thanks @hntrl! - fix(providers): add proper abort signal handling for invoke and stream operations

  • Added early abort check (signal.throwIfAborted()) at the start of _generate methods to immediately throw when signal is already aborted
  • Added abort signal checks inside streaming loops in _streamResponseChunks to return early when signal is aborted
  • Propagated abort signals to underlying SDK calls where applicable (Google GenAI, Google Common/VertexAI, Cohere)
  • Added standard tests for abort signal behavior in @langchain/standard-tests

  This enables proper cancellation behavior for both invoke and streaming operations, and allows fallback chains to correctly proceed to the next runnable when the previous one is aborted.