From 669b13189180ea40f73e7202052f04039cfc9dac Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Sat, 25 Apr 2026 09:21:14 -0700
Subject: check listpays before reversing

---
 index.ts        |  4 ++--
 lib/payments.ts | 15 ++++++++++++---
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/index.ts b/index.ts
index 5a3f172b..78c43598 100644
--- a/index.ts
+++ b/index.ts
@@ -34,7 +34,7 @@ try {
 
 setTimeout(listenForLightning, 2000);
 setInterval(ensureListenerAlive, 120000);
-setInterval(sendHeartbeat, 2000);
+setInterval(sendHeartbeat, 5000);
 
 app.get("/balances", info.balances);
 app.get("/health", info.health);
@@ -46,7 +46,7 @@ app.get("/rates", rates.index);
 
 app.get("/locations", locations.list);
 
-app.get("/invoice/:id", invoices.get);
+app.get("/invoice/:id", { config: { rateLimit: { max: 30, timeWindow: 10000, keyGenerator: (req) => { const ip = (req.headers["cf-connecting-ip"] as string) || req.ip; const token = (req.headers.authorization || "").slice(0, 50); return token ? `invoice:${token}` : `invoice:${ip}`; } } } }, invoices.get);
 app.get("/invoices", auth, invoices.list);
 app.post("/invoice", optional, invoices.create);
 app.post("/invoice/:id", optional, invoices.update);
diff --git a/lib/payments.ts b/lib/payments.ts
index 71d6c990..5d823b4d 100644
--- a/lib/payments.ts
+++ b/lib/payments.ts
@@ -597,7 +597,16 @@ export const sendLightning = async ({
     }
   } catch (e) {
     err("failed to pay", pr.substr(-8));
-    try { await reverse(p); } catch (_) {}
+    try {
+      const { pays } = await ln.listpays(pr);
+      const completed = pays.find((p) => p.status === "complete");
+      if (completed) {
+        warn("payment completed despite error, finalizing", p.id);
+        try { await finalize(completed, p); } catch (_) {}
+      } else {
+        await reverse(p);
+      }
+    } catch (_) {}
     throw e;
   }
 
@@ -780,7 +789,7 @@ export const catchUp = async () => {
     err("problem syncing", e.message);
   }
 
-  setTimeout(catchUp, 10000);
+  setTimeout(catchUp, 30000);
 };
 
 export const check = async () => {
@@ -814,7 +823,7 @@ export const check = async () => {
     err("payment check failed", e.message);
   }
 
-  setTimeout(check, 2000);
+  setTimeout(check, 5000);
 };
 
 const finalize = async (r, p) => {
-- 
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