Allowance

get allowance of erc20 token

warning

It requires connected wallet.

func Allowance(contractAddress, owner, spender string) (*big.Int, error)

func main() {
	// ... setup ...
	
	allowance, err := w.ERC20().Allowance("<contractAddress>", "<ownerAddress>", "<spenderAddress>")
	if err != nil {
		panic(err)
	}
	fmt.Println(allowance)
}