Question and Answer Chain node

Use the Question and Answer Chain node to use a vector store as a retriever.

On this page, you'll find the node parameters for the Question and Answer Chain node, and links to more resources.

Node parameters

The question you want to ask.

Refer to LangChain's documentation on retrieval chains (opens in a new tab) for examples of how LangChain can use a vector store as a retriever.

For common errors or issues and suggested resolution steps, refer to Common Issues.