npm install @supadata/langchain-js

import { SupadataLoader } from "@supadata/langchain-js";

const loader = new SupadataLoader({
  apiKey: "YOUR_SUPADATA_API_KEY", // or process.env.SUPADATA_API_KEY
});

const docs = await loader.load({
  url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
  operation: "transcript",
  lang: "en",
  text: true,
  mode: "auto",
});

console.log(docs[0].pageContent);
console.log(docs[0].metadata);

import { SupadataLoader } from "@supadata/langchain-js";

const loader = new SupadataLoader({
  apiKey: "YOUR_SUPADATA_API_KEY",
});

const docs = await loader.load({
  url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
  operation: "metadata",
});

console.log(docs[0].pageContent);