I created a repo for u to test this out https://github.com/superoo7/steem-stream-example

import { Client } from "dsteem";
const client = new Client("https://api.steemit.com");

const stream = client.blockchain.getBlockStream();

stream.on("data", operation => {
  console.log(operation);
});

It's streaming straight from the blockchain

source: https://developers.steem.io/tutorials-javascript/stream_blockchain_transactions