听 GPT 讲 Go-Ethereum 源代码 (13)
// 假设以下是从GPT获取的代码实例,用于处理以太坊交易
package main
import (
"context"
"crypto/ecdsa"
"fmt"
"log"
"math/big"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
)
// 假设这是一个用于与智能合约交互的示例函数
func sendEthTransaction(client *ethereum.Client, fromKey *ecdsa.PrivateKey, toAddress common.Address, amount *big.Int) {
// 创建交易
nonce, err := client.PendingNonceAt(context.Background(), crypto.PubkeyToAddress(fromKey.PublicKey))
if err != nil {
log.Fatal(err)
}
gasPrice, err := client.SuggestGasPrice(context.Background())
if err != nil {
log.Fatal(err)
}
tx := types.NewTransaction(nonce, toAddress, amount, gasPrice, new(big.Int), nil)
// 签名交易
signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, fromKey)
if err != nil {
log.Fatal(err)
}
// 发送交易
err = client.SendTransaction(context.Background(), signedTx)
if err != nil {
log.Fatal(err)
}
fmt.Printf("Transaction sent! Hash: %s\n", signedTx.Hash().Hex())
}
func main() {
// 示例中的以太坊客户端、私钥和地址需要替换为实际值
client, _ := ethereum.NewClient("https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID")
privateKey, _ := crypto.HexToECDSA("YOUR_PRIVATE_KEY")
toAddress := common.HexToAddress("0x0000000000000000000000000000000000000000")
amount := big.NewInt(1000000000000000000) // 0.1 ETH in Wei
sendEthTransaction(client, privateKey, toAddress, amount)
}
这个代码示例展示了如何在Go语言中创建、签名以及发送一个以太坊交易。它使用了go-ethereum
库,并假设你已经有了一个有效的以太坊客户端(如Infura)和相应的私钥。这个例子简单明了,并且提供了一个清晰的流程,展示了如何在实际应用中处理以太坊交易。
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