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Get Chain ID

useChainId​

Hook for retrieving the chain ID of the network the user is connected to.

import { useChainId } from "@thirdweb-dev/react";

const chainId = useChainId();

Usage​

import { useChainId } from "@thirdweb-dev/react";

function App() {
  const chainId = useChainId();

  return <div>{chainId}</div>;
}

Return value​

Return Value

A number representing the current chain id, or undefined if the user is not connected to a wallet.

number | undefined;

For Example, if the user is connected to the Ethereum Mainnet, the return value will be 1.