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client.go
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client.go
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// desc:
// @author renshiwei
// Date: 2023/4/6 15:19
package eth1
import (
"context"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/pkg/errors"
"math/big"
)
type EthClient struct {
Client *ethclient.Client
}
func NewEthClient(ctx context.Context, rpcHost string) (*EthClient, error) {
elClient, err := getEthClient(ctx, rpcHost)
if err != nil {
return nil, errors.Wrap(err, "")
}
return &EthClient{
Client: elClient,
}, nil
}
func getEthClient(ctx context.Context, rpcHost string) (*ethclient.Client, error) {
client, err := ethclient.Dial(rpcHost)
if err != nil {
return nil, errors.Wrap(err, "Fail to connect to Executive layer Client")
}
return client, nil
}
func KeyTransactOpts(chainID *big.Int, privateKeyStr string) (*bind.TransactOpts, error) {
privateKey, err := crypto.HexToECDSA(privateKeyStr)
if err != nil {
return nil, errors.Wrap(err, "PrivateKey hex err.")
}
transactOpts, err := bind.NewKeyedTransactorWithChainID(privateKey, chainID)
if err != nil {
return nil, errors.Wrap(err, "eth client config privateKey provider err.")
}
return transactOpts, nil
}