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@exodus/bitcoinjs-lib-zcash

0.0.13 • Public • Published

BitcoinJS Zcash (@exodus/bitcoinjs-lib-zcash)

Build Status JavaScript Style Guide

BitcoinJS, forked to support Zcash. Does not support z-addresses, only t-addresses.

All-new test suite; not nearly as exhaustive as bitcoinjs-lib's suite. May be bugs in parts of code not used by Exodus or the tests.

Original bitcoinjs-lib README below:


The pure JavaScript Bitcoin library for node.js and browsers. Estimated to be in use by over 15 million wallet users and is the backbone for almost all Bitcoin web wallets in production today.

Features

  • Clean: Pure JavaScript, concise code, easy to read.
  • Tested: Coverage > 90%, third-party integration tests.
  • Careful: Two person approval process for small, focused pull requests.
  • Compatible: Works on Node.js and all modern browsers.
  • Powerful: Support for advanced features, such as multi-sig, HD Wallets.
  • Secure: Strong random number generation, PGP signed releases, trusted developers.
  • Principled: No support for browsers with crap RNG (IE < 11)
  • Standardized: Node community coding style, Browserify, Node's stdlib and Buffers.
  • Fast: Optimized code, uses typed arrays instead of byte arrays for performance.
  • Experiment-friendly: Bitcoin Mainnet and Testnet support.
  • Altcoin-ready: Capable of working with bitcoin-derived cryptocurrencies (such as Dogecoin).

Should I use this in production?

If you are thinking of using the master branch of this library in production, stop. Master is not stable; it is our development branch, and only tagged releases may be classified as stable.

Installation

npm install bitcoinjs-lib

Setup

Node.js

var bitcoin = require('bitcoinjs-lib')

Browser

If you're familiar with how to use browserify, ignore this and proceed normally. These steps are advisory only, and may not be suitable for your application.

Browserify is assumed to be installed for these steps.

For your project, create an index.js file

let bitcoin = require('bitcoinjs-lib')

// your code here
function myFunction () {
	return bitcoin.ECPair.makeRandom().toWIF()
}

module.exports = {
	myFunction
}

Now, to compile for the browser:

browserify index.js --standalone foo > app.js

You can now put <script src="app.js" /> in your web page, using foo.myFunction to create a new Bitcoin private key.

NOTE: If you uglify the javascript, you must exclude the following variable names from being mangled: BigInteger, ECPair, Point. This is because of the function-name-duck-typing used in typeforce.

Example:

uglifyjs ... --mangle reserved=['BigInteger','ECPair','Point']

NOTE: This library tracks Node LTS features, if you need strict ES5, use --transform babelify in conjunction with your browserify step (using an es2015 preset).

NOTE: If you expect this library to run on an iOS 10 device, ensure that you are using buffer@5.0.5 or greater.

Typescript or VSCode users

Type declarations for Typescript are available for version ^3.0.0 of the library.

npm install @types/bitcoinjs-lib

You can now use bitcoinjs-lib as a typescript compliant library.

import { HDNode, Transaction } from 'bitcoinjs-lib'

For VSCode (and other editors), users are advised to install the type declarations, as Intellisense uses that information to help you code (autocompletion, static analysis).

Report any typescript related bugs at @dlebrecht DefinitelyTyped fork, submit PRs to DefinitelyTyped

Flow

Definitions for Flow typechecker are available in flow-typed repository.

You can either download them directly from the repo, or with the flow-typed CLI

# npm install -g flow-typed
$ flow-typed install -f 0.27 bitcoinjs-lib@2.2.0 # 0.27 for flow version, 2.2.0 for bitcoinjs-lib version

The definitions are complete and up to date with version 2.2.0. The definitions are maintained by @runn1ng.

Examples

The below examples are implemented as integration tests, they should be very easy to understand. Otherwise, pull requests are appreciated. Some examples interact (via HTTPS) with a 3rd Party Blockchain Provider (3PBP).

If you have a use case that you feel could be listed here, please ask for it!

Projects utilizing BitcoinJS

Contributing

We are always accepting of pull requests, but we do adhere to specific standards in regards to coding style, test driven development and commit messages.

Please make your best effort to adhere to these when contributing to save on trivial corrections.

Running the test suite

npm test
npm run-script coverage

Complementing Libraries

  • BIP21 - A BIP21 compatible URL encoding library
  • BIP38 - Passphrase-protected private keys
  • BIP39 - Mnemonic generation for deterministic keys
  • BIP32-Utils - A set of utilities for working with BIP32
  • BIP66 - Strict DER signature decoding
  • BIP68 - Relative lock-time encoding library
  • BIP69 - Lexicographical Indexing of Transaction Inputs and Outputs
  • Base58 - Base58 encoding/decoding
  • Base58 Check - Base58 check encoding/decoding
  • Bech32 - A BIP173 compliant Bech32 encoding library
  • coinselect - A fee-optimizing, transaction input selection module for bitcoinjs-lib.
  • merkle-lib - A performance conscious library for merkle root and tree calculations.
  • minimaldata - A module to check bitcoin policy: SCRIPT_VERIFY_MINIMALDATA

Alternatives

LICENSE MIT

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npm i @exodus/bitcoinjs-lib-zcash

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