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JavaScript library for the Metaverse Blockchain

Usage

Transaction

To create, decode or encode transactions your can use the Transaction class.

HD Wallet

The library provides a HDWallet class. You can see the examples folder for browser as well as nodejs examples. For details please read the wallet documentation.

Attachments

Encode attachments

const { AttachmentMSTTransfer } = require('./lib')

const attachment = new AttachmentMSTTransfer(
      'MVS.HUG',
      1,
    )

console.log(attachment.toBuffer())
// <Buffer 01 00 00 00 02 00 00 00 02 00 00 00 07 4d 56 53 2e 48 55 47 01 00 00 00 00 00 00 00>

Decode attachments

console.log(Attachment.fromBuffer(Buffer.from('010000000200000002000000074d56532e4855470100000000000000', 'hex')))
// AttachmentMSTTransfer { type: 2, version: 1, symbol: 'MVS.HUG', quantity: 1 }

console.log(Attachment.fromBuffer(Buffer.from('01000000000000000', 'hex')))
// AttachmentETPTransfer { type: 0, version: 1 }

Outputs

// decode from buffer
const output = Output.fromBuffer(Buffer.from('00e1f505000000001976a914e7da370944c15306b3809580110b0a6c653ac5a988ac0100000000000000', 'hex'))

// create ETP outputs
const etpOutput = new OutputETPTransfer('MGqHvbaH9wzdr6oUDFz4S1HptjoKQcjRve', 100000000)

// get json format
console.log(output.toJSON())
// { 
//    value: 100000000,
//    script: 'OP_DUP OP_HASH160 [ e7da370944c15306b3809580110b0a6c653ac5a9 ] OP_EQUALVERIFY OP_CHECKSIG',
//    attachment: AttachmentETPTransfer { type: 0, version: 1 } 
// }

// encode output
console.log(etpOutput.toBuffer())
// <Buffer 00 e1 f5 05 00 00 00 00 1a 19 76 a9 14 61 fd e3 bd 4e 69 55 c9 9b 16 de 2d 71 e2 a3 69 88 8a 1c 0b 88 ac 01 00 00 00 00 00 00 00>
console.log(etpOutput.toString())
// 00e1f505000000001a1976a91461fde3bd4e6955c99b16de2d71e2a369888a1c0b88ac0100000000000000