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module.exports = async (req, res) => {
let { user } = req;
let { address, asset, amount, feeRate } = req.body;
let tx, fee;
let recipient = await db.User.findOne({
attributes: ["username"],
where: { confidential: address },
});
if (recipient) emit(user.username, "to", recipient);
try {
amount = parseInt(amount);
tx = await lq.createRawTransaction(
[],
{
[address]: (amount / SATS).toFixed(8)
},
0,
false,
{
[address]: asset,
}
);
let params = {
subtractFeeFromOutputs: amount === user.balance ? [0] : [],
};
if (feeRate) params.feeRate = (feeRate / SATS).toFixed(8);
tx = await lq.fundRawTransaction(tx, params);
if (config.liquid.walletpass)
await lq.walletPassphrase(config.liquid.walletpass, 300);
let blinded = await lq.blindRawTransaction(tx.hex);
let signed = await lq.signRawTransactionWithWallet(blinded);
decoded = await lq.decodeRawTransaction(signed.hex);
feeRate = Math.round((tx.fee * SATS * 1000) / decoded.vsize);
l.info("estimated", asset);
res.send({ feeRate, tx });
} catch (e) {
l.error("error estimating liquid fee", e.message);
return res.status(500).send(e.message);
}
};
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