From 3075ac4e5937042dc53aa833a328cb6cbec39e31 Mon Sep 17 00:00:00 2001
From: C <cesar@rodasm.com.py>
Date: Wed, 8 Oct 2025 17:52:40 -0300
Subject: [PATCH] Read the latest mint quote status in a transaction to avoid
 race conditions (#1166)

* Read the latest mint quote status in a transaction to avoid race conditions

Fixes #1162

* Reload quote for all cases

* Exit on paid invoices only for bolt11
---
 crates/cdk/src/mint/ln.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/crates/cdk/src/mint/ln.rs b/crates/cdk/src/mint/ln.rs
index 447b0e3e..9e4b5961 100644
--- a/crates/cdk/src/mint/ln.rs
+++ b/crates/cdk/src/mint/ln.rs
@@ -45,6 +45,20 @@ impl Mint {
 
         let mut tx = self.localstore.begin_transaction().await?;
 
+        // reload the quote, as it state may have changed
+        *quote = tx
+            .get_mint_quote(&quote.id)
+            .await?
+            .ok_or(Error::UnknownQuote)?;
+
+        let current_state = quote.state();
+
+        if quote.payment_method == PaymentMethod::Bolt11
+            && (current_state == MintQuoteState::Issued || current_state == MintQuoteState::Paid)
+        {
+            return Ok(());
+        }
+
         for payment in ln_status {
             if !quote.payment_ids().contains(&&payment.payment_id)
                 && payment.payment_amount > Amount::ZERO