Go语言实现查询以太坊代币余额

Go语言实现查询以太坊代币余额

代码：

import (
    "fmt"
    "github.com/ethereum/go-ethereum/accounts/abi/bind"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/ethclient"
    "github.com/honorjoey/ethtest/contracts"
)

func BalanceToken(Net, tokenAddress, address string) (string, error) {
    client, err := ethclient.Dial(Net)
    if err != nil {
        return "", err
    }

    // Golem (GNT) Address
    tokenAddr := common.HexToAddress(tokenAddress)
    instance, err := contracts.NewTobaToken(tokenAddr, client)
    if err != nil {
        return "", err
    }

    addr := common.HexToAddress(address)
    bal, err := instance.BalanceOf(&bind.CallOpts{}, addr)
    if err != nil {
        return "", err
    }
    //bal.Div(bal, big.NewInt(1000000000000000000))
    return bal.String(), nil
}

func main() {
    bal, _ := BalanceToken("ETHNetAddress", "contractAddress", "ethAddress")
    fmt.Println(bal)
}