ethers-trezor

This is just a quick sample that is enough to integrate Ethers with Trezor Hardware Wallet. More work needs to be done in order to detect and relay any meaningful errors to the application developer.

Importing

Node.js

This will intialize the Signer and

const { TrezorSigner } = require('trezor-signer');

TypeScript

import { TrezorSigner } from 'trezor-signer';

API

Initialize

// Options are optional; this is the default
let options = {
    path: "m'/44'/0'/0'/0/0"
};

let provider = ethers.providers.getDefaultProvider();

// Initialize TrezorSigner object with provider and options
const signer = new TrezorSigner(provider, options);

Get Address

// Get the address by the given 'path' in options
signer.getPublicKey().then((address) => {
    console.log(address);
    // "0xcCd7ce9EC004bFBd5711245f917D6109813A909C"
})

Get Public Key

// Get the publicKey and chainCode from which number of addresses can be extracted.
signer.getAddress().then((pk) => {
    console.log(pk);
    // {
    //     "publicKey": "024f4021c101d401086165425f2531cac43339a9ae736a9b84a5f3a1e50181d07d",
    //     "chainCode": "5d122909742cd9fa0320bbfd1b1ae851c88274328cc68390c956635ad7305e06"
    // }
})

Sign message

// Sign a hexadecimal message and returns the correspoding signature
let message = "0x31124cc354ee4d13adfd08d6156a401578483ac5bf6ac435f314d0c95523d534"
signer.signMessage(message).then((signature) => {
    console.log(sinature);
    //  f8d5f3c077addba852ec5b9d8471d45878edd0678fc7f4c9465c03c82ea
    //  d2e9e7ef6b1f77d529197c727658fbe4be5e7880eec69a0f82c4724cf5712450f1ca91c
});

Sign transaction

const tx = {
    to: '0x2156b0acbB9AE3cEE0451f489cd42477c427072A',
    value: '0x100',
    gasLimit: '0x5208',
    gasPrice: '0xbebc200',
    nonce: '0x5',
}
signer.sign(tx).then((signedRawTx) => {
    console.log(signedRawTx);
    //  0xf86505840bebc200825208942156b0acbb9ae3cee0451f489cd42477c427072a8201008
    //  01ca0bada9c94fe9b1add9c7e3af54825b1c61aa1b2f2090fdb3982f23aab
    //  7d36a075a022d4996cfd56f9594ed85a06811fd6897fb59c149cac9ffd6d38d08510cf48e2
});

Send Transaction

const tx = {
    to: '0x2156b0acbB9AE3cEE0451f489cd42477c427072A',
    value: '0x100',
    gasLimit: '0x5208',
    gasPrice: '0xbebc200',
    nonce: '0x5',
}

// This requires a provider was provided
signer.sendTransaction(tx).then((tx) => {
    console.log(tx);
    //{
    //   "nonce": 6,
    //   "gasPrice": {
    //     "_hex": "0x0bebc200"
    //   },
    //   "gasLimit": {
    //     "_hex": "0x5208"
    //   },
    //   "to": "0x2156b0acbB9AE3cEE0451f489cd42477c427072A",
    //   "value": {
    //     "_hex": "0x1000"
    //   },
    //   "data": "0x",
    //   "chainId": 0,
    //   "v": 28,
    //   "r": "0x4b26534eb711fbfa8c299e62f590e7ef046fd463d22b71fda99abf6198108b2a",
    //   "s": "0x316c0401a9b2bdb9050e712b5beaef0198cc986c7829c3ed337515fe4f0dc558",
    //   "from": "0x3281575CbECBb5e625C1aEB382155e4d81f3Faf1",
    //   "hash": "0x2e3328065b98359fb79656a5acfb3927e6fbbfb5005514e43d46668324f2d580"
    // }
});

Connect to new provider

let ropstenProvider = ethers.providers.getDefaultProvider('ropsten');
let ropstenSigner = signer.connect(ropstenProvider);