Zeitgeist get market metadata

market-metadata.ts

import * as ipfsClient from "ipfs-http-client";
import CID from "cids";
import { u8aToString } from "@polkadot/util";

const main = async (
  metadata: string = "0x153065f773b9d3b19b9ec3ef4641bc62e714b77c086d1fa1b263331aa994789d7a8f7e21f0ceaf11ee285a2490821ca348b0"
) => {
  const ipfs = await ipfsClient.create({
    url: "http://ipfs.zeitgeist.pm:5001/",
  });

  const cid = new CID(`f0155` + metadata.slice(2));

  let buf: Uint8Array[] = [];

  for await (const chunk of ipfs.cat(cid as any) as any) {
    buf.push(chunk);
  }

  const out = buf.map(u8aToString).reduce((acc, n) => acc + n);

  console.log(JSON.parse(out));
};

main();