Developer Notes

Try

• Return Source Documents
• VectorStore QA
• LangChain TS Starter
• OpenAI Node
  • Try one of the examples
  • Use openai 4.0.0 — latest gives _shims error

Environment Variables

The following environment variables are required to run the code:

• OPENAI_API_KEY - OpenAI API Key
• PINECONE_API_KEY - Pinecone API Key
• PINECONE_ENVIRONMENT - See Pinecone.io dashboard

Place the above in a .env file in the root of the project.

Notes

• To run this code in WebStorm, in the Run/Debug Configurations set node paramaters to:

  --loader ts-node/esm
  

  The above is done to support loading LangChain ESM modules.

• OpenAI text-embedding-ada-002 outputs 1536 dimensions

References

• LangChain Install
  • Examples
• LangChain Python QA Tutorial
• Langchain Tutorial For Typescript and Javascript Developers
• LangChain Tutorials
• LangChain Docs
• QuestionAnswer
• LangChain TypeScript Getting Started
• Pinecone Chunking Strategies
• Retrieval QA Chain
• NPM Pinecone Client
• Pincone NodeJS Client
• Pinecone Namespaces