evmSignTransaction

Ethereum: Sign transaction

Asks device to sign given transaction using the private key derived by given BIP32 path. User is asked to confirm all transaction details on OneKey.

const result = await HardwareSDK.evmSignTransaction(connectId, deviceId, params);

Params

Optional common params

• path — required string | Array<number> minimum length is 3. read more

• transaction - required Object type of EthereumTransactionEIP1559|EthereumSignTransaction "0x" prefix for each field is optional

• chainId - optional number The ChainId in ETH is a unique identifier for a specific Ethereum network, used to distinguish different versions of the blockchain. Reference.

Examples

EIP1559 (after The London Upgrade)

If both parameters maxFeePerGas and maxPriorityFeePerGas are defined, transaction will be signed as the new type introduced in EIP1559.

HardwareSDK.evmSignTransaction(connectId, deviceId, {
    path: "m/44'/60'/0'",
    transaction: {
        to: '0xd0d6d6c5fe4a677d343cc433536bb717bae167dd',
        value: '0xf4240',
        data: '0xa',
        chainId: 1,
        nonce: '0x0',
        maxFeePerGas: '0x14',
        maxPriorityFeePerGas: '0x0',
        gasLimit: '0x14',
    },
    chainId: 1
});

Legacy

HardwareSDK.evmSignTransaction(connectId, deviceId, {
    path: "m/44'/60'/0'",
    transaction: {
        to: "0x7314e0f1c0e28474bdb6be3e2c3e0453255188f8",
        value: "0xf4240",
        data: "0x01",
        chainId: 1,
        nonce: "0x0",
        gasLimit: "0x5208",
        gasPrice: "0xbebc200"
    },
    chainId: 1
});

Result

{
    success: true,
    payload: {
        v: string, // hexadecimal string with "0x" prefix
        r: string, // hexadecimal string with "0x" prefix
        s: string, // hexadecimal string with "0x" prefix
    }
}

Error

{
    success: false,
    payload: {
        error: string, // error message
        code: number // error code
    }
}