Class AmazonKnowledgeBaseRetriever

Deprecated

The AmazonKnowledgeBaseRetriever integration has been moved to the @langchain/aws package. Import from @langchain/aws instead.

Class for interacting with Amazon Bedrock Knowledge Bases, a RAG workflow oriented service provided by AWS. Extends the BaseRetriever class.

Example

const retriever = new AmazonKnowledgeBaseRetriever({
  topK: 10,
  knowledgeBaseId: "YOUR_KNOWLEDGE_BASE_ID",
  region: "us-east-2",
  clientOptions: {
    credentials: {
      accessKeyId: "YOUR_ACCESS_KEY_ID",
      secretAccessKey: "YOUR_SECRET_ACCESS_KEY",
    },
  },
});

const docs = await retriever.getRelevantDocuments("How are clouds formed?");
Copy