Accounts: Overview

DefaultEthSigner provides private key management, transaction, and message signing.

DefaultEthSigner

Init:

func NewEthSignerFromMnemonic(mnemonic string, chainId int64) (*DefaultEthSigner, error)

func NewEthSignerFromMnemonicAndAccountId(mnemonic string, accountId uint32, chainId int64) (*DefaultEthSigner, error)

func NewEthSignerFromRawPrivateKey(rawPk []byte, chainId int64) (*DefaultEthSigner, error)

PrivateKey     := os.Getenv("PRIVATE_KEY")
ZkSyncProvider := "https://testnet.era.zksync.dev"

// Connect to zkSync network
zp, err := zksync2.NewDefaultProvider(ZkSyncProvider)
if err != nil {
	log.Panic(err)
}
defer zp.Close()

// Create singer object from private key for appropriate chain
chainID, err := zp.ChainID(context.Background())
if err != nil {
	log.Fatal(err)
}
es, err := zksync2.NewEthSignerFromRawPrivateKey(common.Hex2Bytes(PrivateKey), chainID.Int64())
if err != nil {
	log.Fatal(err)
}

Interface:

type EthSigner interface {
	GetAddress() common.Address
	GetDomain() *Eip712Domain
	SignHash(msg []byte) ([]byte, error)
	SignTypedData(d *Eip712Domain, data EIP712TypedData) ([]byte, error)
}

• SignHash: signs transaction hash.
• SignTypedData: signs EIP712-typed zkSync transaction which is used for smart contract deployment.

Wallet

A Wallet is a wrapper around EthSigner which provides actions on the L2 network. Based on the action, the Wallet crates an appropriate transaction, signs the transaction using the EthSigner, and then broadcasts the transaction to the network.

Init:

func NewWallet(es EthSigner, zp Provider) (*Wallet, error)

PrivateKey     := os.Getenv("PRIVATE_KEY")
ZkSyncProvider := "https://testnet.era.zksync.dev"

// Connect to zkSync network
zp, err := zksync2.NewDefaultProvider(ZkSyncProvider)
if err != nil {
	log.Panic(err)
}
defer zp.Close()

// Create singer object from private key for appropriate chain
chainID, err := zp.ChainID(context.Background())
if err != nil {
	log.Fatal(err)
}
es, err := zksync2.NewEthSignerFromRawPrivateKey(common.Hex2Bytes(PrivateKey), chainID.Int64())
if err != nil {
	log.Fatal(err)
}

// Create wallet
w, err := zksync2.NewWallet(es, zp)
if err != nil {
	log.Panic(err)
}

Visit Accounts:L1->L2 Transactions to see which actions Wallet provides.

Complete examples are available on the getting started page.