python-blockchain-410/ETH/rpc.go

package main

import (
    "context"
    "log"

    "github.com/ethereum/go-ethereum"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/ethclient"
)

func main() {
    client, _ := ethclient.Dial("http://127.0.0.1:8545")
    defer client.Close()

    contractAddr := common.HexToAddress("0x8a9009847570fdbcc676c7fd547ab26a358a5005")
	myAddress := common.HexToAddress("0x10464a0e69e5bbd01b9bdb7f2943a103a885ff29")

    callMsg := ethereum.CallMsg{
        To:   &contractAddr,
		From:   myAddress,
        Data: common.FromHex("0x"),
    
	}

    res, err := client.CallContract(context.Background(), callMsg, nil)
    if err != nil {
        log.Fatalf("Error calling contract: %v", err)
    }

    log.Printf(common.BytesToAddress(res).Hex())
}