btc-script-helpers

Some functions to help compose bitcoin scripts.

Usage

npm i btc-script-helper

const scripter = require('btc-script-helper')

// keys must be passed as buffers
const keys = []
keys.push(Buffer.from('0252a536c77bb9a0e46abb21633f2382a3c68de9b48c7933142d70d759cddb35c2', 'hex'))
keys.push(Buffer.from('03e5f2f74b8277f7b69d80987bff932de1009d82f366a920bfa60359620e5f5858', 'hex'))
keys.push(Buffer.from('034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa', 'hex'))

// construct a 2-of-3 multisig script
const script = scripter.fromMultisig(2, 3, keys)

// create a nested P2SH-P2WSH address from the script
const address = scripter.computeNestedAddress(script)

console.log('please pay to:', address)
// please pay to: 3KruSwZhXtDaHJpcqr5cMiuMbWCWQVS343 

API

scripter.fromMultisig(m, n, keys)

Compute an m-of-n multisig script. keys should be an array of buffers, n should be < 16.

scriptet.addressFromScript(script, [testnet = false])

Compute a P2SH address from a script hash. Defaults to mainnet address.

scripter.computeNestedAddress(script, [testnet = false])

Compute the nested P2SH-P2WSH address for the given script. Script should be passed as a buffer. Defaults to mainnet address.