Vault-eth-Controller

A Module written in javascript for managing various keyrings of Ethereum accounts, encrypting them, and using them.

• Installation
• Initialize the Eth Controller class
• Methods
  • Generate Keyring with 1 account and encrypt
  • Restore a keyring with the first account using a mnemonic
  • Add a new account to the keyring object
  • Export the private key of an address present in the keyring
  • Sign a transaction
  • Sign a message
  • Get balance

Installation

npm install --save @getsafle/vault-eth-controller

Initialize the Eth Controller class

const { KeyringController, getBalance } = require('@getsafle/vault-eth-controller');

const ethController = new KeyringController({
  encryptor: {
    // An optional object for defining encryption schemes:
    // Defaults to Browser-native SubtleCrypto.
    encrypt(password, object) {
      return new Promise('encrypted!');
    },
    decrypt(password, encryptedString) {
      return new Promise({ foo: 'bar' });
    },
  },
});

Methods

Generate Keyring with 1 account and encrypt

const keyringState = await ethController.createNewVaultAndKeychain(password);

Restore a keyring with the first account using a mnemonic

const keyringState = await ethController.createNewVaultAndRestore(password, mnemonic);

Add a new account to the keyring object

const keyringState = await ethController.addNewAccount(keyringObject);

Export the private key of an address present in the keyring

const privateKey = await ethController.exportAccount(address);

Sign a transaction

const signedTx = await ethController.signTransaction(ethTx, _fromAddress);

Sign a message

const signedMsg = await ethController.signMessage(msgParams);

Sign a message

const signedObj = await ethController.sign(msgParams, pvtKey, web3Obj);

Sign Typed Data (EIP-712)

const signedData = await ethController.signTypedMessage(msgParams);

Get balance

const balance = await getBalance(address, web3);

Send Transaction

const receipt = await ethController.sendTransaction(signedTx, web3);

Calculate Tx Fees

const fees = await ethController.getFees(rawTx, web3);