From 45b998a8b4d4947187d7ea78c12181232a99a3ae Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Thu, 21 May 2020 15:20:06 -0700
Subject: handle no change case

---
 routes/liquid/fee.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/routes/liquid/fee.js b/routes/liquid/fee.js
index 0b2a4d90..659d9a25 100644
--- a/routes/liquid/fee.js
+++ b/routes/liquid/fee.js
@@ -24,6 +24,7 @@ module.exports = async (req, res) => {
     if (feeRate) params.feeRate = (feeRate / SATS).toFixed(8);
 
     let info = await lq.getAddressInfo(address);
+    l.info(info);
 
     tx = await lq.walletCreateFundedPsbt(
       [],
@@ -40,15 +41,25 @@ module.exports = async (req, res) => {
       tx: { vin, vout },
     } = decoded;
 
+    l.info(decoded);
     let change, fee;
     for (let i = 0; i < vout.length; i++) {
+      l.info("vout", vout[i]);
       if (vout[i].scriptPubKey) {
         if (vout[i].scriptPubKey.type === "fee") fee = vout.splice(i, 1)[0];
-        else if (!vout[i].scriptPubKey.addresses.includes(info.unconfidential))
+        else if (!(vout[i].scriptPubKey.addresses.includes(info.unconfidential)))
           change = vout[i];
       }
     }
 
+    if (!change) {
+      change = {
+        value: 0,
+        scriptPubKey: 
+        { addresses: [(await lq.getAddressInfo(await lq.getNewAddress())).unconfidential] },
+      } 
+    } 
+
     let psbt = await lq.createPsbt(
       vin.map((input) => ({
         txid: input.txid,
-- 
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