@onekeyfe/coinselect
Version:
A transaction input selection module for bitcoin.
50 lines • 2.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getTransactionVbytes = exports.getTransactionVbytesFromAddresses = void 0;
const tslib_1 = require("tslib");
const BitcoinJsAddress = tslib_1.__importStar(require("./address"));
const coinselectUtils_1 = require("./coinselect/coinselectUtils");
const address_1 = require("./address");
const isKnownInputAddress = (type) => type in coinselectUtils_1.INPUT_SCRIPT_LENGTH;
const toVin = (network) => (address) => {
const type = (0, address_1.getAddressType)(address, network);
if (isKnownInputAddress(type)) {
return {
type,
script: { length: coinselectUtils_1.INPUT_SCRIPT_LENGTH[type] },
};
}
throw new Error(`Unknown input address '${address}'`);
};
const toVout = (network) => (address) => {
var _a;
let length;
try {
length = BitcoinJsAddress.toOutputScript(address, network).length;
}
catch (_b) {
const msg = (_a = address.match(/^OP_RETURN (.*)$/)) === null || _a === void 0 ? void 0 : _a.pop();
if (msg) {
length = msg.match(/^\(.*\)$/)
? msg.length
: 2 + msg.length / 2;
}
else {
length = 0;
}
}
return { script: { length } };
};
const getTransactionVbytesFromAddresses = (inputs, outputs, network) => {
const ins = inputs.map(toVin(network));
const outs = outputs.map(toVout(network));
return (0, coinselectUtils_1.transactionBytes)(ins, outs);
};
exports.getTransactionVbytesFromAddresses = getTransactionVbytesFromAddresses;
const getTransactionVbytes = ({ vin, vout }, network) => {
const ins = vin.map(({ addresses = [] }) => { var _a; return (_a = addresses[0]) !== null && _a !== void 0 ? _a : ''; });
const outs = vout.map(({ addresses = [] }) => { var _a; return (_a = addresses[0]) !== null && _a !== void 0 ? _a : ''; });
return (0, exports.getTransactionVbytesFromAddresses)(ins, outs, network);
};
exports.getTransactionVbytes = getTransactionVbytes;
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