Use in a Browser

Create file .babelrc
{
  "presets": [ "@babel/preset-env" ],
  "plugins": [ [ "@babel/transform-runtime" ] ]
}
Create file index.html
<html>
  <body>
    <div id='el'></div>
    <script src="./index.js"></script>
  </body>
</html>
Create file index.js
import { Computer } from 'bitcoin-computer'
​
const Counter = `class Counter {
  constructor() { this.n = 0 }
  inc() { this.n += 1 }
}`
​
​
;(async () => {
  const computer = new Computer({
    seed: 'replace this seed',
    chain: 'BSV', // BSV or BCH
    network: 'testnet', // testnet or livenet
    path: "m/44'/0'/0'/0" // defaults to "m/44'/0'/0'/0"
  })
  const counter = await computer.new(Counter, [])
  document.getElementById("el").innerHTML = `Counter is ${counter.n}`
​
  await counter.inc()
  document.getElementById("el").innerHTML = `Counter is ${counter.n}`
})()
Run the following in an empty directory
npm init -y
npm i -s bitcoin-computer
npm i -g parcel-bundler
npm i -s @babel/runtime
npm i -d @babel/plugin-transform-runtime
parcel index.html
Open your browser at http://localhost:1234. You will see an error "Insufficient balance in address <my-address>". Send a small amount of Bitcoin to that address to make it work. You can get free testnet coins from a Bitcoin SV faucet or a Bitcoin Cash Faucet.
Video
The recommended way of using the Bitcoin Computer is client-side using React. The video explains how to build a basic Bitcoin Wallet using Bitcoin Computer. It's a good starting point for any Bitcoin project.
The source code from the video can be found on the Bitcoin|Computer Github.
Use in Node
Tutorial
Last updated 7 months ago