lowlevel.ts

import {
  Document,
  NodeWithScore,
  ResponseSynthesizer,
  SimpleNodeParser,
  TextNode,
} from "llamaindex";

(async () => {
  const nodeParser = new SimpleNodeParser();
  const nodes = nodeParser.getNodesFromDocuments([
    new Document({ text: "I am 10 years old. John is 20 years old." }),
  ]);

  console.log(nodes);

  const responseSynthesizer = new ResponseSynthesizer();

  const nodesWithScore: NodeWithScore[] = [
    {
      node: new TextNode({ text: "I am 10 years old." }),
      score: 1,
    },
    {
      node: new TextNode({ text: "John is 20 years old." }),
      score: 0.5,
    },
  ];

  const response = await responseSynthesizer.synthesize(
    "What age am I?",
    nodesWithScore,
  );
  console.log(response.response);
})();