ethers.js/utils/contract-address.js

21 lines
644 B
JavaScript
Raw Normal View History

2017-02-24 22:57:46 +03:00
var getAddress = require('./address.js').getAddress;
var convert = require('./convert.js');
var keccak256 = require('./keccak256.js');
var rlp = require('./rlp.js');
// http://ethereum.stackexchange.com/questions/760/how-is-the-address-of-an-ethereum-contract-computed
function getContractAddress(transaction) {
if (!transaction.from) { throw new Error('missing from address'); }
var nonce = transaction.nonce;
return getAddress('0x' + keccak256(rlp.encode([
getAddress(transaction.from),
convert.hexlify(nonce, 'nonce')
])).substring(26));
}
module.exports = {
getContractAddress: getContractAddress,
}