gasless

README

Gasless

Ethereum meta transaction library.

Contributing

Found a bug or have an idea for a feature? Create an issue.

Maintainers

@awantoch

@jiyuu-jin

@nasdf

License

Valist is licensed under the Mozilla Public License Version 2.0.

Documentation

Index

• Constants
• type MetaSignerFn
• type TransactOpts
  • func NewWalletTransactor(account accounts.Account, wallet Wallet) *TransactOpts
• type Transactor
• type Wallet
  • func NewWallet(wallet accounts.Wallet) Wallet
  • func (w Wallet) SignTypedData(account accounts.Account, typedData core.TypedData) ([]byte, error)
  • func (w Wallet) SignTypedDataWithPassphrase(account accounts.Account, passphrase string, typedData core.TypedData) ([]byte, error)

Constants

const EIP712Domain = "EIP712Domain"

Types

type MetaSignerFn

type MetaSignerFn func(from common.Address, typedData core.TypedData) ([]byte, error)

MetaSignerFn is a function used to sign typed data.

type TransactOpts

type TransactOpts struct {
	bind.TransactOpts
	MetaSigner MetaSignerFn
}

TransactOpts contains transaction settings.

func NewWalletTransactor

func NewWalletTransactor(account accounts.Account, wallet Wallet) *TransactOpts

NewWalletTransactor returns transact opts using a gasless wallet.

type Transactor

type Transactor interface {
	// Transact creates and submits a meta transaction.
	Transact(opts *TransactOpts, method string, params ...interface{}) (*types.Transaction, error)
}

Transactor defines methods for creating meta transactions.

type Wallet

type Wallet struct {
	accounts.Wallet
}

Wallet is used to sign typed data for meta transactions.

func NewWallet

func NewWallet(wallet accounts.Wallet) Wallet

NewWallet returns a wrapped ethereum wallet.

func (Wallet) SignTypedData

func (w Wallet) SignTypedData(account accounts.Account, typedData core.TypedData) ([]byte, error)

SignTypedData returns a signature derived from the typed data.

func (Wallet) SignTypedDataWithPassphrase

func (w Wallet) SignTypedDataWithPassphrase(account accounts.Account, passphrase string, typedData core.TypedData) ([]byte, error)

SignTypedData is identical to SignTypedData, but also takes a passphrase.