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@jackallabs/bech32

v1.2.0

Published

Bech32 encoding / decoding

Downloads

64

Readme

@jackallabs/bech32

License: MIT github: version npm: version

Forked from the bitcoinjs team. Thank you for all your work!

A BIP173/BIP350 compatible Bech32/Bech32m encoding/decoding library.

Example

Sync

const { bech32, bech32m } = require('bech32')

try {
  bech32.decode('abcdef1qpzry9x8gf2tvdw0s3jn54khce6mua7lmqqqxw')
  // => {
  // 	 prefix: 'abcdef',
  // 	 words: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31]
  // }
  bech32m.decode('abcdef1l7aum6echk45nj3s0wdvt2fg8x9yrzpqzd3ryx')
  // => {
  // 	 prefix: 'abcdef',
  // 	 words: [31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
  // }
  
  // toWords etc. are available on both bech32 and bech32m objects
  const words = bech32.toWords(Buffer.from('foobar', 'utf8'))
  bech32.encode('foo', words)
  // => 'foo1vehk7cnpwgry9h96'
  bech32m.encode('foo', words)
  // => 'foo1vehk7cnpwgkc4mqc'
} catch (err) {
  console.error(err)
}

Async

const { bech32, bech32m } = require('bech32')

await bech32.decodeAsync('abcdef1qpzry9x8gf2tvdw0s3jn54khce6mua7lmqqqxw')
// => {
// 	 prefix: 'abcdef',
// 	 words: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31]
// }
await bech32.decodeAsync('abcdef1l7aum6echk45nj3s0wdvt2fg8x9yrzpqzd3ryx')
// => {
// 	 prefix: 'abcdef',
// 	 words: [31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
// }

// toWords etc. are available on both bech32 and bech32m objects
const words = await bech32.toWordsAsync(Buffer.from('foobar', 'utf8'))
await bech32.encodeAsync('foo', words)
// => 'foo1vehk7cnpwgry9h96'
await bech32.encodeAsync('foo', words)
// => 'foo1vehk7cnpwgkc4mqc'

Advanced

BIP173 enforces a limitation of 90 characters, if extend the LIMIT parameter beyond this, be aware that the effectiveness of checksum decreases as the length increases.

It is highly recommended NOT exceed 1023 characters, as the module could only guarantee detecting 1 error.

Credits

License MIT