EIP712Signer

EIP712Signer with ZKsync and ethers.js

This class provides support for an EIP712 transaction. The methods of this class are mostly used internally.

getDomain

Returns the EIP712 domain.

async getDomain(): Promise<ethers.TypedDataDomain>

getSignInput

Generates the EIP-712 typed data from provided transaction. Optional fields are populated by zero values.

Inputs

ParameterTypeDescription
transactionTransactionRequestTransaction request.
static getSignInput(transaction: TransactionRequest)

Example

const tx = EIP712Signer.getSignInput({
  type: utils.EIP712_TX_TYPE,
  to: "0xa61464658AfeAf65CccaaFD3a512b69A83B77618",
  value: BigNumber.from(7_000_000),
  from: "0x36615Cf349d7F6344891B1e7CA7C72883F5dc049",
  nonce: 0,
  chainId: BigNumber.from(270),
  gasPrice: BigNumber.from(250_000_000),
  gasLimit: BigNumber.from(21_000),
  customData: {},
});

getSignedDigest

Generates the signed digest of an Ethereum transaction using EIP-712.

Inputs

ParameterTypeDescription
transactionTransactionRequestTransaction request.
static getSignedDigest(transaction: TransactionRequest): ethers.BytesLike

sign

Signs an Ethereum transaction using EIP-712.

Inputs

ParameterTypeDescription
transactionTransactionRequestTransaction request.
async sign(transaction: TransactionRequest): Promise<Signature>

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