BalanceOf

ref: Wallet-ERC20-BalanceOf

Get ERC20 token Balance of provided walletAddress.

func BalanceOf(
    contractAddress,
    walletAddress string,
) (balance *big.Int, err error)

func main() {
    ...
    alchemy := gas.NewAlchemy(setting)
    ...
    balance, err := erc20.BalanceOf(artifacts.NewERC20(), contractAddress, walletAddress)
}