subscribeNewHeads | /api-derive/chain/index.ts | polkadot@0.2.23

function subscribeNewHeads

import { subscribeNewHeads } from "https://dotland.deno.dev/x/polkadot@0.2.23/api-derive/chain/index.ts";

subscribeNewHeads(instanceId: string, api: DeriveApi): () => Observable<HeaderExtended>

Examples

api.derive.chain.subscribeNewHeads((header) => {
  console.log(`block #${header.number} was authored by ${header.author}`);
});

instanceId: string

A header with the current header (including extracted author)