181 lines
8.3 KiB
Markdown
181 lines
8.3 KiB
Markdown
# BitcoinJS (bitcoinjs-lib)
|
|
|
|
[](https://travis-ci.org/bitcoinjs/bitcoinjs-lib)
|
|
[](https://www.npmjs.org/package/bitcoinjs-lib)
|
|
[](http://tip4commit.com/projects/735)
|
|
|
|
[](https://github.com/feross/standard)
|
|
|
|
|
|
The pure JavaScript Bitcoin library for node.js and browsers.
|
|
Used by over a million wallet users and 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](https://github.com/bitcoinjs/bitcoinjs-lib/tags).
|
|
|
|
|
|
## 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 allow you to use the API to its full extent.
|
|
|
|
[Browserify](https://github.com/substack/node-browserify) is assumed to be installed for these steps.
|
|
|
|
From your repository, create a `foo.js` file
|
|
|
|
``` javascript
|
|
var foobar = {
|
|
base58: require('bs58'),
|
|
bitcoin: require('bitcoinjs-lib'),
|
|
ecurve: require('ecurve'),
|
|
BigInteger: require('bigi'),
|
|
Buffer: require('buffer')
|
|
}
|
|
|
|
module.exports = foobar
|
|
```
|
|
|
|
Each of these included packages are separate to `bitcoinjs-lib`, and must be `npm install`'d individually.
|
|
|
|
Using browserify, compile `foo.js` for use in the browser:
|
|
|
|
$ browserify foo.js -s foobar > bar.js
|
|
|
|
You will then be able to load `bar.js` into your browser, with each of the dependencies above accessible from the global `foobar` object.
|
|
|
|
**NOTE**: See our package.json for the currently supported version of browserify used by this repository.
|
|
|
|
**NOTE**: When uglifying the javascript, you must exclude the following variable names from being mangled: `Array`, `BigInteger`, `Boolean`, `Buffer`, `ECPair`, `Function`, `Number`, `Point` and `Script`.
|
|
This is because of the function-name-duck-typing used in [typeforce](https://github.com/dcousens/typeforce).
|
|
Example:
|
|
``` bash
|
|
uglifyjs ... --mangle --reserved 'Array,BigInteger,Boolean,Buffer,ECPair,Function,Number,Point'
|
|
```
|
|
|
|
### Flow
|
|
|
|
Definitions for [Flow typechecker](https://flowtype.org/) are available in flow-typed repository.
|
|
|
|
[You can either download them directly](https://github.com/flowtype/flow-typed/blob/master/definitions/npm/bitcoinjs-lib_v2.x.x/flow_%3E%3Dv0.17.x/bitcoinjs-lib_v2.x.x.js) 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](https://github.com/runn1ng).
|
|
|
|
## Examples
|
|
|
|
The below examples are implemented as integration tests, they should be very easy to understand. Otherwise, pull requests are appreciated.
|
|
|
|
- [Generate a random address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L9)
|
|
- [Generate a address from a SHA256 hash](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L20)
|
|
- [Generate a address and WIF for Litecoin](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L30)
|
|
- [Import an address via WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L44)
|
|
- [Create a Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L51)
|
|
- [Sign a Bitcoin message](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/advanced.js#L8)
|
|
- [Verify a Bitcoin message](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/advanced.js#L16)
|
|
- [Create an OP RETURN transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/advanced.js#L24)
|
|
- [Create a 2-of-3 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/multisig.js#L9)
|
|
- [Spend from a 2-of-4 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/multisig.js#L25)
|
|
- [Generate a single-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L14)
|
|
- [Generate a dual-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L53)
|
|
- [Recover a BIP32 parent private key from the parent public key and a derived non-hardened child private key](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L55)
|
|
- [Recover a Private key from duplicate R values in a signature](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L102)
|
|
|
|
If you have a use case that you feel could be listed here, please [ask for it](https://github.com/bitcoinjs/bitcoinjs-lib/issues/new)!
|
|
|
|
|
|
## Projects utilizing BitcoinJS
|
|
|
|
- [BitAddress](https://www.bitaddress.org)
|
|
- [Blockchain.info](https://blockchain.info/wallet)
|
|
- [Blocktrail](https://www.blocktrail.com/)
|
|
- [Dark Wallet](https://www.darkwallet.is/)
|
|
- [DecentralBank](http://decentralbank.com/)
|
|
- [Dogechain Wallet](https://dogechain.info)
|
|
- [EI8HT Wallet](http://ei8.ht/)
|
|
- [GreenAddress](https://greenaddress.it)
|
|
- [Robocoin](https://wallet.robocoin.com)
|
|
- [Skyhook ATM](http://projectskyhook.com)
|
|
|
|
|
|
## Contributors
|
|
|
|
Stefan Thomas is the inventor and creator of this project. His pioneering work made Bitcoin web wallets possible.
|
|
Daniel Cousens, Wei Lu, JP Richardson and Kyle Drake lead the major refactor of the library from 0.1.3 to 1.0.0.
|
|
|
|
Since then, many people have contributed. [Click here](https://github.com/bitcoinjs/bitcoinjs-lib/graphs/contributors) to see the comprehensive list.
|
|
|
|
|
|
## 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](https://github.com/bitcoinjs/bip21) - A BIP21 compatible URL encoding utility library
|
|
- [BIP38](https://github.com/bitcoinjs/bip38) - Passphrase-protected private keys
|
|
- [BIP39](https://github.com/bitcoinjs/bip39) - Mnemonic generation for deterministic keys
|
|
- [BIP32-Utils](https://github.com/bitcoinjs/bip32-utils) - A set of utilities for working with BIP32
|
|
- [BIP32-Wallet](https://github.com/bitcoinjs/bip32-wallet) - A BIP32 Wallet backed by bitcoinjs-lib, lite on features but heavily tested
|
|
- [BIP66](https://github.com/bitcoinjs/bip66) - Strict DER signature decoding
|
|
- [BIP69](https://github.com/bitcoinjs/bip69) - Lexicographical Indexing of Transaction Inputs and Outputs
|
|
- [Base58](https://github.com/cryptocoinjs/bs58) - Base58 encoding/decoding
|
|
- [Base58 Check](https://github.com/bitcoinjs/bs58check) - Base58 check encoding/decoding
|
|
- [BCoin](https://github.com/indutny/bcoin) - BIP37 / Bloom Filters / SPV client
|
|
- [insight](https://github.com/bitpay/insight) - A bitcoin blockchain API for web wallets.
|
|
|
|
|
|
## Alternatives
|
|
|
|
- [Bitcore](https://github.com/bitpay/bitcore)
|
|
- [Cryptocoin](https://github.com/cryptocoinjs/cryptocoin)
|
|
|
|
|
|
## LICENSE [MIT](LICENSE)
|
|
|
|
|
|
## Copyright
|
|
|
|
BitcoinJS (c) 2011-2016 bitcoinjs-lib contributors
|
|
|
|
Released under MIT license
|