Comments (3)
glad you like the new feature!
We really need a docs page for this project 😅
I see 2 approaches here:
Approach 1:
You define a new callback handler called AsyncConversationalRetrievalWithSourcesChainStreamingCallback
and register it as follows:
@register_streaming_callback("ConversationalRetrievalWithSourcesChain")
class AsyncConversationalRetrievalWithSourcesChainStreamingCallback(
AsyncConversationalRetrievalChainStreamingCallback
):
"""AsyncStreamingResponseCallback handler for ConversationalRetrievalWithSourcesChain."""
pass
Approach 2:
We update fastapi_async_langchain
to auto-detect using chain class name (as we do now) but if the chain type is not supported, we search for the inherit chain class name. This could work for your use-case but I sense there might be bugs down this road as some custom chains will simply inherit from Chain
and it might break the application.
I think approach 1 is a better solution. Try it out and let me know how it goes!
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@rogalvil fyi: https://lanarky.readthedocs.io/en/latest/advanced/custom_callbacks.html
feel free to make suggestions via pr.
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@ajndkr Cool, thanks
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Related Issues (20)
- Question: SSE StreamingResponse support for FastAPI HOT 2
- Final answer not returned with using GPTCache, with streaming JSON. HOT 6
- LangchainRouter not using chain's built-in memory HOT 2
- Feature Request: Customized Chain Support HOT 4
- Issue with Gradio Integration in conversation_retrieval in examples/app HOT 4
- StreamingResponse SSE text/event-stream requires "data:" prefix and "\n\n" terminator to work properly HOT 5
- typing-extensions outdated for pydantic v2 HOT 6
- Vercel is not recognizing my LangchainRouter HOT 3
- Create Streaming for Agent types and add Memory HOT 2
- How to custom an AsyncLanarkyCallback in llmchain? HOT 7
- UserWarning: Field name "raise_error" shadows an attribute in parent "AsyncCallbackHandler"; HOT 7
- How to export OpenAI-Compatible API ? HOT 2
- Streaming sometimes has no response on repeated same request HOT 10
- AttributeError: module 'openai' has no attribute 'aiosession' HOT 5
- bug: callback handlers for langchain adapter doesn't work for LLMs without async support HOT 1
- bug: Expected response header Content-Type to contain 'text/event-stream', got 'text/plain' HOT 31
- bug: TokenStreamingCallbackHandler accepts only one key HOT 5
- bug: openai error: list index out of range HOT 1
- feat: LLMChain was deprecated HOT 1
- Allow langchain version > 0.2.0 to be used HOT 2
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