cmeone / chia-utils

A set of JavaScript utilities to facilitate conversions for the Chia network

Unofficial Library: Chia-Utils

A set of JavaScript utilities to facilitate conversions for the Chia network

Table of Contents

• Install
• Address to Puzzle Hash
• Puzzle Hash to Address
• Get Coin Info
• Get Coin Info Mojo
• Bytes to Hex
• Hex to Bytes

Install

To install from NPM:

npm install chia-utils

To install from GitHub:

git clone https://github.com/CMEONE/chia-utils.git

To test:

npm install
npm test

To include from NPM:

const { address_to_puzzle_hash, puzzle_hash_to_address, get_coin_info, get_coin_info_mojo, bytes_to_hex, hex_to_bytes } = require("chia-utils");

To include from file:

const { address_to_puzzle_hash, puzzle_hash_to_address, get_coin_info, get_coin_info_mojo, bytes_to_hex, hex_to_bytes } = require("./chia-utils.js");

To use in the browser:

<script type="text/javascript" src="chia-utils.js"></script>
<script>
  ChiaUtils.address_to_puzzle_hash( ... )
  ChiaUtils.puzzle_hash_to_address( ... )
  ChiaUtils.get_coin_info( ... )
  ChiaUtils.get_coin_info_mojo( ... )
  ChiaUtils.bytes_to_hex( ... )
  ChiaUtils.hex_to_bytes( ... )
</script>

Address to Puzzle Hash

let puzzle_hash = address_to_puzzle_hash(address);

Parameters:

• address: string ("xch1...")

Return type: string ("0x...")

Puzzle Hash to Address

let address = puzzle_hash_to_address(puzzle_hash, prefix = "xch");

Parameters:

• puzzle_hash: string ("0x...")
• prefix: string ("xch") - default: "xch"

Return type: string ("xch1...")

Get Coin Info

let coin_info = get_coin_info(parent_coin_info, puzzle_hash, amount_decimal);

Parameters:

• parent_coin_info: string ("0x...")
• puzzle_hash: string ("0x...")
• amount_decimal: number (0.01)

Return type: string ("0x...")

Get Coin Info Mojo

let coin_info = get_coin_info_mojo(parent_coin_info, puzzle_hash, amount);

Parameters:

• parent_coin_info: string ("0x...")
• puzzle_hash: string ("0x...")
• amount: number (1000000000000)

Return type: string ("0x...")

Bytes to Hex

let hex = bytes_to_hex(bytes);

Parameters:

• bytes: Array or Uint8Array ([0, 255, ...])

Return type: string ("fedcba9876543210...")

Hex to Bytes

let bytes = hex_to_bytes(hex);

Parameters:

• hex: string ("fedcba9876543210...")

Return type: Uint8Array ([0, 255, ...])

chia-utils's Issues

get_coin_info bug

var amount = 0.5994
var parent_coin_info = '0x5db7892bd03b7ddc6368646250d7bafeff19bf64517c1b901d32ce3bd8ce3e7d'
var puzzle_hash = '0xc2f1ff148e091196c8cf415db67f8381ab0d91b5b71ee7841a1bbd96b2923f44'

get_coin_info result is 0xc8fa5267c1cff10a860e715fedf0d423a6399cf4d7b1cfe398e9d737c66bb302, different from site:

https://www.chiaexplorer.com/blockchain/coin/0x226bee197e358e60c25d907d5ad2db0c4508861a1d66b8438602bb31ac43aa0c

the amountHex result is '8b8f062a00', but the right result is '008b8f062a00'

I use this code to fix

  const fixPreLength = (num, len) => (Array(len).join(0) + num).slice(-len)
  let amountHex = amount.toString(16)
  const byte_count = (amount.toString(2).length + 8) >> 3
  amountHex = fixPreLength(amountHex, byte_count * 2)

so, how the get_coin_info function to do with this bug?

how can I use mnemonic and path, get addresses?

is there any lib can do this?

瀏覽器運行報錯

TypeError: Property left of AssignmentExpression expected node to be of a type ["LVal"] but instead got "BooleanLiteral"

Can't import properly in Vue 2.x app

I'm trying to use chia-utils in Vue 2 app, code looks like this in main.js:

import { puzzle_hash_to_address } from 'chia-utils'

The error message in browser (Firefox) is:
Uncaught TypeError: window.Buffer is undefined chia-utils.js:9863

I guess it was because in Vue 2.x, window object only accessible after mounted, but chia-utils tried to access window.Buffer just inside import initialization code.
Any way to solve this?

Thank you.