From 091f5df97ddc896e0e3662a197ee15300ca98f6f Mon Sep 17 00:00:00 2001
From: Sudarsan Balaji <sudarsan.balaji@artfuldev.com>
Date: Thu, 21 Oct 2021 14:50:52 +0530
Subject: [PATCH] Add change descriptor to Wallet

---
 src/bdk.udl | 2 +-
 src/lib.rs  | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/bdk.udl b/src/bdk.udl
index e830577..23148c1 100644
--- a/src/bdk.udl
+++ b/src/bdk.udl
@@ -126,7 +126,7 @@ callback interface BdkProgress {
 
 interface OnlineWallet {
   [Throws=BdkError]
-  constructor(string descriptor, Network network, DatabaseConfig database_config, BlockchainConfig blockchain_config);
+  constructor(string descriptor, string? change_descriptor, Network network, DatabaseConfig database_config, BlockchainConfig blockchain_config);
 
   // OfflineWalletOperations
   string get_new_address();
diff --git a/src/lib.rs b/src/lib.rs
index 8364ecf..e19ab21 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -193,6 +193,7 @@ impl PartiallySignedBitcoinTransaction {
 impl OnlineWallet {
     fn new(
         descriptor: String,
+        change_descriptor: Option<String>,
         network: Network,
         database_config: DatabaseConfig,
         blockchain_config: BlockchainConfig,
@@ -225,7 +226,7 @@ impl OnlineWallet {
         let blockchain = AnyBlockchain::from_config(&any_blockchain_config)?;
         let wallet = Mutex::new(Wallet::new(
             &descriptor,
-            None,
+            change_descriptor.to_owned().as_ref(),
             network,
             database,
             blockchain,