From 6c9b2db32e4c20fea13031ed74f47086123c7539 Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Sun, 3 May 2020 11:16:41 -0700
Subject: take amount param for lightning send

---
 routes/lightning/query.js |  6 +++---
 routes/lightning/send.js  | 11 +++++++----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/routes/lightning/query.js b/routes/lightning/query.js
index c980b0c0..6f0dccbf 100644
--- a/routes/lightning/query.js
+++ b/routes/lightning/query.js
@@ -1,11 +1,11 @@
 const bolt11 = require("bolt11");
 
 module.exports = async (req, res) => {
-  let hash = req.body.payreq;
-  let payreq = bolt11.decode(hash);
+  let { amount, payreq } = req.body;
+  payreq = bolt11.decode(payreq);
 
   try {
-    res.send(await lna.queryRoutes({ pub_key: payreq.payeeNodeKey, amt: payreq.satoshis }));
+    res.send(await lna.queryRoutes({ pub_key: payreq.payeeNodeKey, amt: amount || payreq.satoshis }));
   } catch (e) {
     res.status(500).send(e.message);
   } 
diff --git a/routes/lightning/send.js b/routes/lightning/send.js
index d273471a..9141bc1d 100644
--- a/routes/lightning/send.js
+++ b/routes/lightning/send.js
@@ -3,10 +3,12 @@ const bolt11 = require("bolt11");
 module.exports = async (req, res) => {
   let hash = req.body.payreq;
   let payreq = bolt11.decode(hash);
-  let { route } = req.body;
+  let { amount, route } = req.body;
   let { user } = req;
 
-  l.info("attempting lightning payment", user.username, payreq.satoshis);
+  if (!amount) amount = payreq.satoshis;
+
+  l.info("attempting lightning payment", user.username, amount);
 
   if (seen.includes(hash)) {
     l.warn("attempted to pay a paid invoice", user.username);
@@ -24,11 +26,12 @@ module.exports = async (req, res) => {
         transaction
       });
 
-      if (account.balance < payreq.satoshis) {
+      if (account.balance < amount) {
         throw new Error("Insufficient funds");
       }
 
       let m = await lna.sendPaymentSync({
+        amt: amount,
         payment_request: hash
       });
 
@@ -67,7 +70,7 @@ module.exports = async (req, res) => {
       emit(user.username, "user", user);
 
       if (payreq.payeeNodeKey === config.lnb.id) {
-        lna.addInvoice({ value: payreq.satoshis }, (err, invoice) => {
+        lna.addInvoice({ value: amount }, (err, invoice) => {
           let payback = lnb.sendPayment(lnb.meta, {});
 
           /* eslint-disable-next-line */
-- 
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