create_transaction_for_addresses freezes spent utxos to prevent accidental double spends

src/api.rs

@@ -1144,12 +1144,12 @@ fn create_transaction_for_addresses(addresses: Vec<String>, fee_rate: u32) -> an
     let local_device = lock_local_device()?;
 
     let sp_wallet = local_device.get_wallet();
-    let freezed_utxos = lock_freezed_utxos()?;
+    let mut freezed_utxos = lock_freezed_utxos()?;
 
     let mut recipients = Vec::with_capacity(addresses.len());
     for address in addresses {
         let recipient = Recipient {
-            address: address,
+            address,
             amount: DEFAULT_AMOUNT,
             nb_outputs: 1,
         };
@@ -1166,6 +1166,11 @@ fn create_transaction_for_addresses(addresses: Vec<String>, fee_rate: u32) -> an
         None,
     )?;
 
+    // We add the used inputs in freezed utxos to prevent accidental double spends
+    for input in &signed_psbt.unsigned_tx.input {
+        freezed_utxos.insert(input.previous_output);
+    }
+
     Ok(signed_psbt)
 }