goethereum-账户

goethereumbook
以太坊的账户要么是钱包地址，要么是智能合约地址，类似0x71c7656ec7ab88b098defb751b7401b5f6d8976f，改地址是20个字节。为了使用go-ethereum账户地址，必须先将他们转为go-ethereum类型。common.Address 以太坊地址类型
address := common.HexToAddress("0x71c7656ec7ab88b098defb751b7401b5f6d8976f") fmt.Println(address.Hex())

余额账户

读取账户余额调用BalanceAt方法。

package account

import (
	"context"
	"fmt"
	"log"
	"math/big"

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

func GetBalance() {
	client, err := ethclient.Dial("https://mainnet.infura.io/v3/0b5c18e5bcd0407787cc7d319dbb056b")
	if err != nil {
		log.Fatal("connect rpc error")
	}
	defer client.Close()

	account := common.HexToAddress("0x0B3Bb070d190992c6567E9F0bc325426C813EE4C")
	//传入账户地址和可选的区块号。区块号设置nil，即返回最新的余额。
	balance, err := client.BalanceAt(context.Background(), account, nil)
	if err != nil {
		log.Fatal("get balance error")
	}
	fmt.Println("balance:", balance)
	//显示未ETH单位
	fmt.Println("balance in ETH:", new(big.Float).Quo(new(big.Float).SetInt(balance), big.NewFloat(1e18))) //0.001399288346059696 ETH
}

待处理余额

1. 查询待处理区块中的账户余额
2. 包含尚未打包进区块但已被网络接受的交易影响

pendingBalance, err := client.PendingBalanceAt(context.Background(), account)
fmt.Println(pendingBalance) // 25729324269165216042