向运行时生成的地址添加气体

Question

我正在修改一段创建键和地址的代码。当我运行代码时，我会得到以下错误。

天然气资金不足*价格+价值

我的问题是，如何将funds获取到此地址？

有什么建议吗？

package main
import (
"context"
"crypto/ecdsa"
"fmt"
"log"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/jimlawless/whereami"
"golang.org/x/crypto/sha3"
)
func main() {
client, err := ethclient.Dial("https://rinkeby.infura.io/v3/xyz")
if err != nil {
log.Fatal(err.Error() + "@" + err.Error() + " @ " + whereami.WhereAmI())
}
privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
if err != nil {
log.Fatal(err.Error() + "@" + err.Error() + " @ " + whereami.WhereAmI())
}
publicKey := privateKey.Public()
publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
if !ok {
log.Fatal("error casting public key to ECDSA")
}
fromAddress := crypto.PubkeyToAddress(*publicKeyECDSA)
fmt.Print("fromAddress: ")
fmt.Println(fromAddress)
nonce, err := client.PendingNonceAt(context.Background(), fromAddress)
if err != nil {
log.Fatal(err.Error() + "@" + err.Error() + " @ " + whereami.WhereAmI())
}
value := big.NewInt(0)      // in wei (0 eth)
gasLimit := uint64(2000000) // in units
gasPrice, err := client.SuggestGasPrice(context.Background())
if err != nil {
log.Fatal(err.Error() + "@" + err.Error() + " @ " + whereami.WhereAmI())
}
toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
tokenAddress := common.HexToAddress("0x28b149020d2152179873ec60bed6bf7cd705775d")
transferFnSignature := []byte("transfer(address,uint256)")
hash := sha3.NewLegacyKeccak256()
hash.Write(transferFnSignature)
methodID := hash.Sum(nil)[:4]
fmt.Println(hexutil.Encode(methodID)) // 0xa9059cbb
paddedAddress := common.LeftPadBytes(toAddress.Bytes(), 32)
fmt.Println(hexutil.Encode(paddedAddress)) // 0x0000000000000000000000004592d8f8d7b001e72cb26a73e4fa1806a51ac79d
amount := new(big.Int)
amount.SetString("1000000000000000000000", 10) // 1000 tokens
paddedAmount := common.LeftPadBytes(amount.Bytes(), 32)
fmt.Println(hexutil.Encode(paddedAmount)) // 0x00000000000000000000000000000000000000000000003635c9adc5dea00000
var data []byte
data = append(data, methodID...)
data = append(data, paddedAddress...)
data = append(data, paddedAmount...)
tx := types.NewTransaction(nonce, tokenAddress, value, gasLimit, gasPrice, data)
signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, privateKey)
if err != nil {
log.Fatal(err.Error() + "@" + err.Error() + " @ " + whereami.WhereAmI())
}
err = client.SendTransaction(context.Background(), signedTx)
if err != nil {
log.Fatal(err.Error() + "@" + err.Error() + " @ " + whereami.WhereAmI())
}
fmt.Printf("tx sent: %s", signedTx.Hash().Hex()) // tx sent: 0xa56316b637a94c4cc0331c73ef26389d6c097506d581073f927275e7a6ece0bc
}

Answer 1

要在帐户上获得资金，您可以从另一个已经有资金的帐户转移资金。这取决于您部署帐户的网络或执行环境。

在Rinkerby测试网的情况下，您可以从开发人员水龙头中转移它们。