Lotus JS Client ChainHead Example

<html>
  <head>
    <title>Lotus: Chain Head</title>
  </head>
  <body>
    <h3>ChainHead</h3>
    Height: <span id='height'></span>
    <script type="module" src="./script.js"></script>
  </body>
</html>

import { LotusRPC } from 'https://unpkg.com/@filecoin-shipyard/lotus-client-rpc?module'
import { BrowserProvider } from 'https://unpkg.com/@filecoin-shipyard/lotus-client-provider-browser?module'
import { testnet } from 'https://unpkg.com/@filecoin-shipyard/lotus-client-schema?module'

const wsUrl = 'wss://lotus.testground.ipfs.team/api/0/node/rpc/v0'
const provider = new BrowserProvider(wsUrl)
const client = new LotusRPC(provider, { schema: testnet.fullNode })

setInterval(async () => {
  const result = await client.chainHead()
  document.querySelector('#height').textContent = result.Height
}, 1000)