Print the ultimate payment failure reason on PaymentFailed events

diff --git a/src/main.rs b/src/main.rs
index cad7425e2087644aac4e6c6afca33ad7e22b6f9c..cc67700525b5ff5acd2b1592c7319127e4e93fad 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -18,6 +18,7 @@ use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget,
 use lightning::chain::keysinterface::{EntropySource, InMemorySigner, KeysManager};
 use lightning::chain::{chainmonitor, ChannelMonitorUpdateStatus};
 use lightning::chain::{Filter, Watch};
+use lightning::events::{Event, PaymentFailureReason, PaymentPurpose};
 use lightning::ln::channelmanager;
 use lightning::ln::channelmanager::{
        ChainParameters, ChannelManagerReadArgs, SimpleArcChannelManager,
@@ -29,7 +30,6 @@ use lightning::routing::gossip;
 use lightning::routing::gossip::{NodeId, P2PGossipSync};
 use lightning::routing::router::DefaultRouter;
 use lightning::util::config::UserConfig;
-use lightning::events::{Event, PaymentPurpose};
 use lightning::util::ser::ReadableArgs;
 use lightning_background_processor::{process_events_async, GossipSync};
 use lightning_block_sync::init;
@@ -243,10 +243,11 @@ async fn handle_ldk_events(
                Event::PaymentPathFailed { .. } => {}
                Event::ProbeSuccessful { .. } => {}
                Event::ProbeFailed { .. } => {}
-               Event::PaymentFailed { payment_hash, .. } => {
+               Event::PaymentFailed { payment_hash, reason, .. } => {
                        print!(
-                               "\nEVENT: Failed to send payment to payment hash {:?}: exhausted payment retry attempts",
-                               hex_utils::hex_str(&payment_hash.0)
+                               "\nEVENT: Failed to send payment to payment hash {:?}: {:?}",
+                               hex_utils::hex_str(&payment_hash.0),
+                               if let Some(r) = reason { r } else { PaymentFailureReason::RetriesExhausted }
                        );
                        print!("> ");
                        io::stdout().flush().unwrap();