import { Network, Alchemy } from 'alchemy-sdk';

​

// Optional Config object, but defaults to demo api-key and eth-mainnet.

const settings = {

  apiKey: 'demo', // Replace with your Alchemy API Key.

  network: Network.MATIC_MAINNET, // Replace with your network.

};

const alchemy = new Alchemy(settings);

​

// Access standard Ethers.js JSON-RPC node request

alchemy.core.getBlockNumber().then(console.log);