ethereum

package module
v0.0.4 Latest Latest
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 Go to latest Published: Jun 11, 2024 License: MIT Imports: 15 Imported by: 4

README

ethereum-sdk

Ethereum SDK is used to interact with the Ethereum blockchain or Evm blockchains, it contains various functions can be used to web3 wallet.

Installation

go get

To obtain the latest version, simply require the project using :

go get -u github.com/okx/go-wallet-sdk/coins/ethereum

Usage

New Address
	p, _ := hex.DecodeString("559376194bb4c9a9dfb33fde4a2ab15daa8a899a3f43dee787046f57d5f7b10a")
	prvKey, _ := btcec.PrivKeyFromBytes(p)
	address := GetNewAddress(prvKey.PubKey())
	addr, err := PubKeyToAddr(prvKey.PubKey().SerializeUncompressed())
	if err != nil {
		// todo
	}
Transfer
	transaction := NewEthTransaction(
		big.NewInt(int64(00)),
		big.NewInt(int64(420000)),
		big.NewInt(int64(200000000000)),
		big.NewInt(int64(100000000000000000)),
		"0x1ca96f8cfe7276bb053b25e57188f1b5ec6a4728", "0x",
	)
	hash, raw, _ := transaction.GetSigningHash(big.NewInt(int64(10)))
	tx, err := transaction.SignTransaction(big.NewInt(int64(10)), prvKey)
	if err != nil {
		// todo
	}
Transfer Token
	transfer, _ := token.Transfer("0x1ca96f8cfe7276bb053b25e57188f1b5ec6a4728", big.NewInt(int64(100000000000000000)))
	transaction := NewEthTransaction(
		big.NewInt(int64(00)),
		big.NewInt(int64(420000)),
		big.NewInt(int64(200000000000)),
		big.NewInt(int64(0)),
		"0x1ca96f8cfe7276bb053b25e57188f1b5ec6a4728", hex.EncodeToString(transfer),
	)
	tx, err := transaction.SignTransaction(big.NewInt(int64(10)), prvKey)
	if err != nil {
		// todo
	}
Sign message

prv := "49c0722d56d6bac802bdf5c480a17c870d1d18bc4355d8344aa05390eb778280"
prvB, err := hex.DecodeString(prv)
assert.NoError(t, err)
msg := "0x49c0722d56d6bac802bdf5c480a17c870d1d18bc4355d8344aa05390eb778280"
prvKey, pub := btcec.PrivKeyFromBytes(prvB)
sig, err := SignEthTypeMessage(msg, prvKey, true)   //true means using the format "\x19Ethereum Signed Message:\n%d%s"
fmt.Println(sig, err)
assert.Equal(t, `d87758593e0b89f8a2deef5e053ce484fe971a75124bf5d89d6f4d4f586604120d0110d03c91260fec9ec917354caae50c1744d246e30ff48def277d7d9aec831b`, sig)
Verify Signed message

sig:="d87758593e0b89f8a2deef5e053ce484fe971a75124bf5d89d6f4d4f586604120d0110d03c91260fec9ec917354caae50c1744d246e30ff48def277d7d9aec831b"
msg:="0x49c0722d56d6bac802bdf5c480a17c870d1d18bc4355d8344aa05390eb778280"
addr:="0xd74c65ad81aa8537327e9ba943011a8cec7a7b6b"
err := VerifySignMsg(sig, msg, addr, true) //true means using the format "\x19Ethereum Signed Message:\n%d%s"
assert.NoError(t, err)

License

Most packages or folder are MIT licensed, see package or folder for the respective license.

Documentation

Index

Constants

View Source 
const AddressLength = 20
View Source 
const MessagePrefixTmp = "\u0019Ethereum Signed Message:\n%d"

Variables

View Source 
var (
	ErrInvalidParam = errors.New("invalid param")
)
View Source 
var (
	ErrInvalidSignature = errors.New("invalid signature")
)

Functions

func CalTxHash 

func CalTxHash(rawTx string) string

func DecodeTx 

func DecodeTx(rawTx string) (string, error)

func EcRecover 

func EcRecover(signature, message string, addPrefix bool) (string, error)

func EcRecoverPubKey added in v0.0.4 

func EcRecoverPubKey(signature, message string, addPrefix bool) (*btcec.PublicKey, error)

func GenerateRawTransactionWithSignature 

func GenerateRawTransactionWithSignature(txType int, chainId, unsignedRawTx, r, s, v string) (string, error)

GenerateRawTransactionWithSignature Generate the transaction to be broadcast based on the unsigned transaction and the signature result

func GetAddress 

func GetAddress(pubkeyHex string) string

func GetEthGroupAddress added in v0.0.4 

func GetEthGroupAddress(prefix string, pubKey *btcec.PublicKey) string

func GetEthGroupPubHash added in v0.0.4 

func GetEthGroupPubHash(pubKey *btcec.PublicKey) []byte

func GetEthereumMessagePrefix 

func GetEthereumMessagePrefix(message string) string

func GetNewAddress 

func GetNewAddress(pubKey *btcec.PublicKey) string

func GetNewAddressBytes added in v0.0.4 

func GetNewAddressBytes(pubKey *btcec.PublicKey) []byte

func MessageHash 

func MessageHash(data string) string

func NewEip1559Transaction 

func NewEip1559Transaction(
	chainId *big.Int,
	nonce uint64,
	maxPriorityFeePerGas *big.Int,
	maxFeePerGas *big.Int,
	gasLimit uint64,
	to *common.Address,
	value *big.Int,
	data []byte) *types.Transaction

func OnlyRemovePrefix added in v0.0.4 

func OnlyRemovePrefix(s string) string

func PubKeyToAddr added in v0.0.3 

func PubKeyToAddr(publicKey []byte) (string, error)

func SignEthTypeMessage added in v0.0.4 

func SignEthTypeMessage(message string, prvKey *btcec.PrivateKey, addPrefix bool) (string, error)

func ValidateAddress 

func ValidateAddress(address string) bool

func VerifySignMsg added in v0.0.4 

func VerifySignMsg(signature, message, address string, addPrefix bool) error

Types

type EIP1559Transaction 

type EIP1559Transaction struct {
	Transaction
	TxType               int    `json:"txType"`
	MaxFeePerGas         string `json:"maxFeePerGas"`
	MaxPriorityFeePerGas string `json:"maxPriorityFeePerGas"`
}

type Eip1559Token 

type Eip1559Token struct {
	EIP1559Transaction
	ContractAddress string `json:"contract_address"`
	Amount          string `json:"amount"`
}

type Eip1559Transaction 

type Eip1559Transaction struct {
	ChainId    *big.Int         `json:"chainId"`
	Nonce      uint64           `json:"nonce"`
	GasTipCap  *big.Int         `json:"gasTipCap"`
	GasFeeCap  *big.Int         `json:"gasFeeCap"`
	Gas        uint64           `json:"gas"`
	To         *common.Address  `json:"to"`
	Value      *big.Int         `json:"value"`
	Data       []byte           `json:"data"`
	AccessList types.AccessList `json:"accessList"`
}

type EthTransaction 

type EthTransaction struct {
	Nonce    *big.Int `json:"nonce"`
	GasPrice *big.Int `json:"gasPrice"`
	GasLimit *big.Int `json:"gas"`
	To       []byte   `json:"to"`
	Value    *big.Int `json:"value"`
	Data     []byte   `json:"data"`
	// Signature values
	V *big.Int `json:"v"`
	R *big.Int `json:"r"`
	S *big.Int `json:"s"`
}

func NewEthTransaction 

func NewEthTransaction(nonce, gasLimit, gasPrice, value *big.Int, to, data string) *EthTransaction

func NewTransactionFromRaw 

func NewTransactionFromRaw(raw string) (*EthTransaction, error)

func (*EthTransaction) GetSigningHash 

func (tx *EthTransaction) GetSigningHash(chainId *big.Int) (string, string, error)

func (*EthTransaction) SignTransaction 

func (tx *EthTransaction) SignTransaction(chainId *big.Int, prvKey *btcec.PrivateKey) (string, error)

func (*EthTransaction) SignedTx 

func (tx *EthTransaction) SignedTx(chainId *big.Int, sig *SignatureData) (string, error)

func (*EthTransaction) UnSignedTx 

func (tx *EthTransaction) UnSignedTx(chainId *big.Int) (string, error)

type SignatureData 

type SignatureData struct {
	V *big.Int
	R *big.Int
	S *big.Int

	ByteV byte
	ByteR []byte
	ByteS []byte
}

func NewSignatureData 

func NewSignatureData(msgHash []byte, publicKey string, r, s *big.Int) (*SignatureData, error)

func SignAsRecoverable 

func SignAsRecoverable(value []byte, prvKey *btcec.PrivateKey) (*SignatureData, error)

func SignMessage 

func SignMessage(message []byte, prvKey *btcec.PrivateKey) (*SignatureData, error)

func (SignatureData) ToBytes 

func (sd SignatureData) ToBytes() []byte

func (*SignatureData) ToHex 

func (sd *SignatureData) ToHex() string

type Transaction 

type Transaction struct {
	Nonce    string `json:"nonce"`
	GasLimit string `json:"gasLimit"`
	GasPrice string `json:"gasPrice"`
	From     string `json:"from"`
	To       string `json:"to"`
	Value    string `json:"value"`
	Data     string `json:"data"`
	Fee      string `json:"fee"`
	ChainId  string `json:"chainId"`
}

type UnsignedTx 

type UnsignedTx struct {
	Tx   string `json:"tx"`
	Hash string `json:"hash"`
}

func GenerateTxWithJSON 

func GenerateTxWithJSON(message string, chainId *big.Int, isToken bool) (*UnsignedTx, error)

generate tx with json param

func NewUnsignedTx 

func NewUnsignedTx(nonce, gasLimit, gasPrice, value, chainId *big.Int, to, data string) (*UnsignedTx, error)

Source Files

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Directories

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