Refactor: Upgrade AI Stack to 2025 Standards (LangChain 0.3 + Pinecone v6) #40
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…d restore Mistral API
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Hi maintainers! This PR refactors the stack to 2025 standards (LangChain 0.3 + Pinecone v6) and restores full functionality. I've verified it locally. Happy to resolve any merge conflicts if they arise! |
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This PR modernizes the entire b0bot stack to resolve critical API failures and dependency conflicts found in the current main branch.
The Problems Solved:
API Failure: The old huggingface_hub version was trying to access api-inference.huggingface.co, which returned a 410 Gone error (deprecated API).
Database Crash: The code was using dictionary syntax (.get()) for Pinecone responses, but the new Pinecone v6 client returns Objects, causing crash loops.
Dependency Hell: langchain-classic and other outdated packages were causing version locks that prevented installing modern tools.
The Fixes:
Upgraded Stack: Bumped langchain and huggingface_hub to latest stable versions.
Refactored Service: Rewrote NewsService.py to use LCEL (Pipe syntax |) instead of the deprecated LLMChain.
Fixed Model: Updated NewsModel.py to use object dot-notation for vector metadata access.
Verified: Tested locally with the Mistral route; successfully retrieved and summarized news.