TypeScript SDK

watchBlockNumber

Watches the block number for a specific chain.

Example


import { watchBlockNumber } from "thirdweb";
const unwatch = watchBlockNumber({
  client,
  chainId,
  onNewBlockNumber: (blockNumber) => {
    // do something with the block number
  },
  onError: (err) => {
    // do something if getting the block number fails
  },
});
 
// later stop watching
unwatch();


function watchBlockNumber(opts: WatchBlockNumberOptions): () => void;

Parameters

The options for watching the block number.

Type


let opts: {
  chain: Chain;
  client: ThirdwebClient;
  latestBlockNumber?: bigint;
  onError?: (error: Error) => void;
  onNewBlockNumber: (blockNumber: bigint) => void;
  overPollRatio?: number;
};

Returns


let returnType: () => void;

The unwatch function.