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ADD: pay for zero-amount (tip) invoices

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This commit is contained in:
Overtorment 2019-01-05 14:52:27 +00:00
parent bc5841d07d
commit 765eeed9c9
1 changed files with 8 additions and 1 deletions
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9
controllers/api.js
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@ -106,12 +106,19 @@ router.post('/payinvoice', async function(req, res) {
} }
if (!req.body.invoice) return errorBadArguments(res); if (!req.body.invoice) return errorBadArguments(res);
let freeAmount = false;
if (req.body.amount) freeAmount = parseInt(req.body.amount);
let userBalance = await u.getBalance(); let userBalance = await u.getBalance();
lightning.decodePayReq({ pay_req: req.body.invoice }, async function(err, info) { lightning.decodePayReq({ pay_req: req.body.invoice }, async function(err, info) {
if (err) return errorNotAValidInvoice(res); if (err) return errorNotAValidInvoice(res);
if (+info.num_satoshis === 0) {
// 'tip' invoices
info.num_satoshis = freeAmount;
}
if (userBalance >= info.num_satoshis) { if (userBalance >= info.num_satoshis) {
// got enough balance // got enough balance
@ -158,7 +165,7 @@ router.post('/payinvoice', async function(req, res) {
return errorLnd(res); return errorLnd(res);
} }
}); });
let inv = { payment_request: req.body.invoice }; let inv = { payment_request: req.body.invoice, amt: info.num_satoshis }; // amt is used only for 'tip' invoices
call.write(inv); call.write(inv);
} else { } else {
return errorNotEnougBalance(res); return errorNotEnougBalance(res);