Add support langchain stream #495
Open
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
When calling the stream method in LangChain, the on_chain_start method takes a dummy input: {"input":""}. This is because if the input is a streaming data, it needs to collect all the streaming data completely before executing the update operation in the on_chain_end or on_chain_error callback methods.
In the on_chain_end and on_chain_error methods, when determining if the input kwargs has the inputs parameter, if it does, the inputs parameter is passed during the update trace execution to achieve the effect of updating the span's input.
|
|
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
When calling the stream method in LangChain, the on_chain_start method takes a dummy input: {"input":""}. This is because if the input is a streaming data, it needs to collect all the streaming data completely before executing the update operation in the on_chain_end or on_chain_error callback methods.
In the on_chain_end and on_chain_error methods, when determining if the input kwargs has the inputs parameter, if it does, the inputs parameter is passed during the update trace execution to achieve the effect of updating the span's input.
The same issue is in langchain repo: langchain-ai/langchain#18567