WebSocket

Subscribe to updates coming from the blockchain.

ws(wsConfig)

See ws API docs.

See WsEndpoint_InNode for a reference of all the subscription methods.

Live Editor

function DemoWebSocket() {
  const [logs, setLogs] = useState([]);
  useEffect(() => {
    const addToLog = msg => {
      msg.timestamp = new Date().toISOString();
      console.log(msg);
      setLogs([...logs, JSON.stringify(msg)])
    };
    const ws = chronik.ws({
      onMessage: addToLog,
      onConnect: addToLog,
      onReconnect: addToLog,
      onError: addToLog,
      onEnd: addToLog,
    });
    // Send block updates
    ws.subscribeToBlocks();
    // Random address that seems to have a lot of traffic
    ws.subscribeToAddress("ecash:qryzw7gteszy8jgsejjchlwjg7lctxpwjgllx92x9j");
    // This can be awaited
    ws.waitForOpen();
  }, []);
  return logs.map((log, idx) => <div key={idx}>{log}</div>);
}

Result

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