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transfer_token.go
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transfer_token.go
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package main
import (
"context"
"crypto/ecdsa"
"encoding/hex"
Contracts "eth_multisig/contracts"
"fmt"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"log"
"math/big"
)
/**
* 写入智能合约-合约币交易
*/
func main() {
priKey := "5cc1a2676080fe6a3ae0b107967fdcae3f3c671d89d0241828e2a137effacd81" // 发起方私钥 地址0x2074d05c2d8C52a892E5A1dF0685378b89Ccc420 的私钥
contractAddress := common.HexToAddress("0x956B3669D8914BFcaf6815f67CbC3299C27c58b8") // 多签合约地址
tokenAddress := common.HexToAddress("0x3C7E3Ffad7CB26fC9E51F49D277aCFE09Ae73eA2") // 代币合约地址
destAddress := common.HexToAddress("0x9Af40dce2Ebc76F42Ea74e2cAe460181eFb27167") // 转账对象地址
amount := big.NewInt(5000) // 代币交易数额
client, err := ethclient.Dial("https://ropsten.infura.io/v3/5329b08a37c048d3a3370ca8d53ed609")
if err != nil {
log.Fatal(err)
}
privateKey, err := crypto.HexToECDSA(priKey) //
if err != nil {
log.Fatal(err)
}
publicKey := privateKey.Public()
publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
if !ok {
log.Fatal("cannot assert type: publicKey is not of type *ecdsa.PublicKey")
}
fromAddress := crypto.PubkeyToAddress(*publicKeyECDSA)
nonce, err := client.PendingNonceAt(context.Background(), fromAddress)
if err != nil {
log.Fatal(err)
}
gasPrice, err := client.SuggestGasPrice(context.Background())
if err != nil {
log.Fatal(err)
}
auth := bind.NewKeyedTransactor(privateKey)
auth.Nonce = big.NewInt(int64(nonce))
auth.Value = big.NewInt(0) // in wei
auth.GasLimit = uint64(300000) // in units
auth.GasPrice = gasPrice
instance, err := Contracts.NewContracts(contractAddress, client)
if err != nil {
log.Fatal(err)
}
var data []byte
methodID, err := hex.DecodeString("a9059cbb")
paddedAddress := common.LeftPadBytes(destAddress.Bytes(), 32)
paddedAmount := common.LeftPadBytes(amount.Bytes(), 32)
data = append(data, methodID...)
data = append(data, paddedAddress...)
data = append(data, paddedAmount...)
tx, err := instance.SubmitTransaction(auth, tokenAddress, big.NewInt(0), data)
if err != nil {
log.Fatal(err)
}
fmt.Printf("tx sent: %s \n", tx.Hash().Hex()) // tx sent: 0x3bddc671b15533f96b16586aa6d39f7db581c86f937e7ad2e0a8c15567fd647d
}