web3override

• bitcoin.js - extend bitcoinjs-lib with keychain related methods prepareTx, buildTxKeychain
• keychain.js - Keychain class with ws connection initialization
• index.js - override web3.eth.accounts.signTransaction method
• test.js - example usage together (keychain + web3)

Usage

• Sign ethereum transaction

  import { web3Override, Keychain } from 'web3override'

  // create new key in Keychain
  const keyInstance = await Keychain.create();
   
  const data = await keyInstance.selectKey();
  const key = data.result;
  await keyInstance.term();
  web3.eth.accounts.signTransaction = web3Override(web3).signTransaction;

  // now we use web3 with keychain
  await web3.eth.accounts.signTransaction(transactionParams, key); // overriden web3 function usage

• Sign & build ready for broadcast bitcoin transaction

  // import library
  import { bitcoin, Keychain } from 'web3override';

  // tx - bitcoin.TransactionBuilder instance with inputs & outputs
  const keyInstance = await Keychain.create();
  const data = await keyInstance.selectKey();
  const publicKey = data.result;
  tx.inputs.forEach((input, index) => {
    tx.prepareTx(index,  publicKey)
  });
  const txRawHex = await tx.buildTxKeychain(keyInstance, publicKey);

Run tests

npm run test

Add key to your key_data:

keyname: test1@76de427d42c38be4
password: qwe

TODO bitcoin tests