checkIsWalletAddressContract()

checkIsWalletAddressContract(params): Promise<boolean>

Defined in: satellite-evm/src/utils/checkIsWalletAddressContract.ts:45 

Checks whether an address has contract code on a chain, for example to detect smart contract wallets such as Safe. The EVM adapter uses it as checkIsContractAddress, and the store saves the result in isContractAddress.

Side effects: reads the code with wagmi’s getBytecode through the wagmi transport of chainId (an RPC request), and caches the result in memory per chain and address for the lifetime of the page. Addresses with code include EIP-7702 delegated accounts.

Parameters

params

Address and chain to check.

address

string

The address to check.

chainId

string | number

The chain to check it on, as a number or numeric string.

chains

readonly [Chain, Chain]

The app chains. When chainId is not in this list, nothing is requested and a warning is logged.

config

Config

The wagmi config whose transports are used.

Returns

Promise<boolean>

true when the address has code; false when it has none or chainId is not in chains.

Throws

When the RPC request fails (the failure is not cached).

Example

import { checkIsWalletAddressContract } from '@tuwaio/satellite-evm';
import { type Config } from '@wagmi/core';
import { mainnet } from 'viem/chains';
 
declare const wagmiConfig: Config;
 
const isContract = await checkIsWalletAddressContract({
  config: wagmiConfig,
  address: '0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B',
  chainId: mainnet.id,
  chains: [mainnet],
});