Verify Address and Construct Transaction#

// Verify address
let valid = await wallet.validAddress({
    address: newAddress.address
});
console.log("verify address isValid:", valid.isValid);

// Sign a transaction
let signParams = {
    privateKey: derivePrivateKey,
    data: {
        to: newAddress.address,
        value: new BigNumber(0),
        nonce: 5,
        gasPrice: new BigNumber(100 * 1000000000),
        gasLimit: new BigNumber(21000),
        chainId: 42
    }
};

let signedTx = await wallet.signTransaction(signParams);
console.log("signed tx:", signedTx);