Create presigned URLs for batch file upload

import { Agentset } from "agentset";
import fs from 'fs';

const agentset = new Agentset({ apiKey: 'agentset_xxx' });
const ns = agentset.namespace('ns_xxx');

const results = await ns.uploads.uploadBatch([
  {
    file: fs.createReadStream("./example-1.md"),
    contentType: "text/markdown",
  },
  {
    file: fs.createReadStream("./example-2.md"),
    contentType: "text/markdown",
  },
]);
console.log("Uploaded successfully: ", results.map((result) => result.key));

// OR get the pre-signed URLs manually
const file1 = fs.readFileSync("./example-1.md");
const file2 = fs.readFileSync("./example-2.md");

const results = await ns.uploads.createBatch({
  files: [
    {
      fileName: "example-1.md",
      fileSize: file1.length,
      contentType: "text/markdown",
    },
    {
      fileName: "example-2.md",
      fileSize: file2.length,
      contentType: "text/markdown",
    },
  ],
});

await Promise.all([file1, file2].map(async (file, i) => {
  await fetch(results[i]!.url, {
    method: "PUT",
    body: file,
    headers: {
      "Content-Type": "text/markdown",
    },
  });
}));

console.log("Upload URLs:", results.map((result) => result.key));

{
  "success": true,
  "data": [
    {
      "url": "<string>",
      "key": "<string>"
    }
  ]
}