Vechain
The D'CENT Web SDK provides functions for signing transaction of coins.
- VECHAIN(VET)
- VECHAIN Token(VECHAIN_ERC20)
- path: key path, wallet sign with that private key with a given key path (BIP32 ex) "m/44'/818'/0'/0/0").
- fee: fee, It is fee that wallet displays on the screen.
- symbol: symbol, It is a symbol that the wallet displays on the screen.
- decimals: vechain or vechain token's decimals.
D'CENT Bridgeversion 1.5.0 or higher is required.- D'CENT Biometric Wallet version 2.23.2 or higher is required.
import { thorify } from 'thorify'
import BigNumber from 'bignumber.js'
const Web3 = require("web3"); // Recommend using require() instead of import here
const web3 = thorify(new Web3(), 'http://localhost:8669')
//https://github.com/vechain/thorify/blob/72988996cead74f9c73e38860c2e055ca35a108e/src/extend/accounts.ts#L12
let clauses = {
from: recvAddress,
to: toAddr,
value: DcentWebConnector.unitConverter(amount, decimals).num.toString(),
gas
}
let rawData = await web3.eth.accounts.signTransaction(clauses, VechainConfig.DummyKey)
rawData = rawData.rawTransaction.substr(0, rawData.rawTransaction.length - 134).slice(2)
let rawBuf = Buffer.from(rawData, 'hex')
let length = rawData.length / 2
let adjustedRaw = ''
let size = 0
if (rawBuf[0] < 0xc0) {
adjustedRaw = null
}
if (rawBuf[0] <= 0xf7) {
adjustedRaw = rawData.slice(2)
} else if (rawBuf[0] <= 0xff) {
switch (rawBuf[0] - 0xf7) {
case 1:
size = 1
break
case 2:
size = 2
break
default:
adjustedRaw = null
}
adjustedRaw = rawData.slice(2 + (size * 2))
} else {
adjustedRaw = null
}
length = adjustedRaw.length / 2
if (length < 56) {
adjustedRaw = (0xc0 + length).toString(16) + adjustedRaw
} else if (length < 256) {
adjustedRaw = '0xf8' + (length).toString(16) + adjustedRaw
} else {
adjustedRaw = '0xf9' + (length).toString(16) + adjustedRaw
}
const transactionJson = {
coinType: DcentWebConnector.coinType.VECHAIN,
sigHash: adjustedRaw.slice(2),
path: `m/44'/818'/0'/0/0`,
decimals, // 18
fee: fee,
symbol: 'VET',
}
var result
try {
result = await DcentWebConnector.getVechainSignedTransaction(transactionJson);
} catch (e) {
console.log(e)
result = e
}
{
"header": {
"version": "1.0",
"response_from": "vechain",
"status": "success"
},
"body": {
"command": "transaction",
"parameter": {
"signed_tx": "0x31aa13b5e04cb6fc6381ea0520bf7f6727ebdb6e96cd7ca8625bb3e3dd36cf0e2cee4ece13aa9f7ddc09ee10c74aa00af954201829d8016317f10f5a921dcc0d"
}
}
}
Last modified 20d ago