Merge pull request #30 from notmandatory/allow-creating-a-wallet-with-a-change-descriptor

Allow creating a wallet with a change descriptor

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();

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,