npm install chia-client

import { FullNode } from 'chia-client';

const fullNode = new FullNode({
    protocol: 'https',
    hostname: 'localhost',
    port: 8555
});

const blockchain = fullNode.getBlockchainState();

console.log(await blockChainState.blockchain_state.space);

import { Wallet } from 'chia-client';

const wallet = new Wallet({
    protocol: 'https',
    hostname: 'localhost',
    port: 8555
});

const mnemonic = await wallet.generateMnemonic();