From 2c30bdff56ed93b16330cf4af6e574f8185495e8 Mon Sep 17 00:00:00 2001
From: Sudarsan Balaji <sudarsan.balaji@artfuldev.com>
Date: Thu, 4 Nov 2021 22:44:38 +0530
Subject: [PATCH 1/2] Add a way to get last unused address

---
 src/lib.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index e19ab2199f..f1892f2c62 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -89,6 +89,14 @@ trait OfflineWalletOperations<B>: WalletHolder<B> {
             .to_string()
     }
 
+    fn get_last_unused_address(&self) -> String {
+        self.get_wallet()
+            .get_address(AddressIndex::LastUnused)
+            .unwrap()
+            .address
+            .to_string()
+    }
+
     fn get_balance(&self) -> Result<u64, Error> {
         self.get_wallet().get_balance()
     }

From 9ee31d97c72d46671daf62b11e5aedf54e65614e Mon Sep 17 00:00:00 2001
From: Sudarsan Balaji <sudarsan.balaji@artfuldev.com>
Date: Thu, 4 Nov 2021 22:45:00 +0530
Subject: [PATCH 2/2] Expose Wallet::getLastUnusedAddress

---
 src/bdk.udl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bdk.udl b/src/bdk.udl
index e3ab62eb99..c5cd9a2af8 100644
--- a/src/bdk.udl
+++ b/src/bdk.udl
@@ -90,6 +90,7 @@ interface OfflineWallet {
 
   // OfflineWalletOperations
   string get_new_address();
+  string get_last_unused_address();
   [Throws=BdkError]
   u64 get_balance();
   [Throws=BdkError]
@@ -130,6 +131,7 @@ interface OnlineWallet {
 
   // OfflineWalletOperations
   string get_new_address();
+  string get_last_unused_address();
   [Throws=BdkError]
   u64 get_balance();
   [Throws=BdkError]