From 0f734b769e3eaac75c5c21fbbc9b0d8b6d553e4c Mon Sep 17 00:00:00 2001
From: cryptagoras <cryptagoras@protonmail.ch>
Date: Sun, 10 May 2020 01:52:20 +0300
Subject: [PATCH] htlcswitch/switch: log successfully forwarded HTLCs

---
 htlcswitch/switch.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/htlcswitch/switch.go b/htlcswitch/switch.go
index f48cbdc9..4c8e6bd8 100644
--- a/htlcswitch/switch.go
+++ b/htlcswitch/switch.go
@@ -1190,6 +1190,11 @@ func (s *Switch) handlePacketForward(packet *htlcPacket) error {
 			// fully settles?
 			localHTLC := packet.incomingChanID == sourceHop
 			if !localHTLC {
+				log.Infof("Forwarded HTLC(%x) of %v (fee: %v) "+
+					"from IncomingChanID(%v) to OutgoingChanID(%v)",
+					circuit.PaymentHash[:], circuit.OutgoingAmount,
+					circuit.IncomingAmount-circuit.OutgoingAmount,
+					circuit.Incoming.ChanID, circuit.Outgoing.ChanID)
 				s.fwdEventMtx.Lock()
 				s.pendingFwdingEvents = append(
 					s.pendingFwdingEvents,