Crypto Wallet Core

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Supported blockchains

• Tron
• Ethereum
• EthereumClassic
• Binance
• Solana
• Polygon
• Bitcoin
• Litecoin
• Bitcoincash
• Dogecoin
• DASH
• ZCASH
• Ripple

Project installation

1. To begin, you must install the project dependencies by running

npm install

2. Next, import the WalletFactory class and create an instance of the class

import { WalletFactory } from "Crypto_Wallet/lib/main";

const wf = new WalletFactory();

3. To generate wallets, call the instance's method createWallets(mnemonic?: string). The menominc parameter is optional and is required to restore existing wallets using a mnemonic phrase.

const wallets = await wf.createWallets(mnemonic);

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WARNING!

To use ZCASH you need to remove type checking from "fromPrivateKey" method of bitcoin-js-lib
Path:

...\Crypto_Wallet\node_modules\@bitgo\utxo-lib\node_modules\bitcoinjs-lib\src\ecpair.js

Function you need to find:

function fromPrivateKey(buffer, options) {
  typeforce(types.Buffer256bit, buffer);
  if (!ecc.isPrivate(buffer))
    throw new TypeError('Private key not in range [1, n)');
  typeforce(isOptions, options);
  return new ECPair(buffer, undefined, options);
}

Code you need to remove from "fromPrivateKey" method

typeforce(isOptions, options);

Detailed information on the properties and methods of the wallet can be found in the documentation at link
A demo of the library can be found in the folder demo

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Fee Calculation

• Tron

  Native token transaction: sending for free while you have enough BandWith, after all the BandWith has been used up, the network will automatically buy the required amount to send the transaction.

  Smart contracts interaction (sending smart token): hardcoded and cost 10 TRX

• Ethereum

  Native token transaction: The fee for sending a transaction is the result of multiplying the spent gas (considered by the library) and the cost of one unit of gas (requested from the resource).

  Smart contracts interaction (sending smart token): hardcoded and cost 100000 Wei

• EthereumClassic

  Native token transaction: The fee for sending a transaction is the result of multiplying the spent gas (considered by the library) and the cost of one unit of gas (considered by the library).

• Binance

  Native token transaction: The fee for sending a transaction is the result of multiplying the spent gas (considered by the library) and the cost of one unit of gas (considered by the library).

  Smart contracts interaction (sending smart token): hardcoded and cost 100000 Wei

• Solana

  Native token transaction: The amount of fee is always the same for any transaction and costs 5000 lamports (0.000005 SOL).

  Smart contracts interaction (sending smart token): Same as native token transaction.

• Polygon

  Native token transaction: The fee for sending a transaction is the result of multiplying the spent gas (considered by the library) and the cost of one unit of gas (requested from the resource).

  Smart contracts interaction (sending smart token): hardcoded and cost 100000 Wei.

• Bitcoin

  Native token transaction: Fee calculated by formula

  (inputCount * 146 + outputCount * 33 + 10) * multiplier
  

  where multiplier = 20

• Litecoin

  Native token transaction: Fee calculated by formula

  (inputCount * 146 + outputCount * 33 + 10) * multiplier
  

  where multiplier = 4000

• Bitcoincash

  Native token transaction: Fee calculated by formula

  this.bitbox.BitcoinCash.getByteCount({ P2PKH: inputCount }, { P2PKH: 2 }) * multiplier
  

  where getByteCount is library method,
  multiplier is constant and equals to 1.3

• Dogecoin

  Native token transaction: Fee calculated by formula

  (inputCount * 146 + outputCount * 33 + 10) * multiplier
  

  where multiplier = 10316

• DASH

  Native token transaction: Fee calculated by formula

  (inputCount * 146 + outputCount * 33 + 10) * multiplier
  

  where multiplier = 400

• ZCASH

  Native token transaction: Fee calculated by formula

  (inputCount * 146 + outputCount * 33 + 10) * multiplier
  

  where multiplier = 400

• Ripple

  Native token transaction: Fee considered by library, ussualy 12 "drops" of XRP, where 1,000,000 drops equals 1 XRP

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Project scripts

npm install

Run demo template

npm run start

Compile documentation

npm run docs

Compile js from ts

npm run compile