Allow to configure bitcoind RPC in Builder

Author: tnull

bindings/ldk_node.udl

@@ -36,6 +36,7 @@ interface Builder {
 	void set_entropy_seed_bytes(sequence<u8> seed_bytes);
 	void set_entropy_bip39_mnemonic(Mnemonic mnemonic, string? passphrase);
 	void set_chain_source_esplora(string server_url, EsploraSyncConfig? config);
+	void set_chain_source_bitcoind_rpc(string rpc_host, u16 rpc_port, string rpc_user, string rpc_password);
 	void set_gossip_source_p2p();
 	void set_gossip_source_rgs(string rgs_server_url);
 	void set_liquidity_source_lsps2(SocketAddress address, PublicKey node_id, string? token);

src/builder.rs

@@ -78,6 +78,7 @@ use std::time::SystemTime;
 #[derive(Debug, Clone)]
 enum ChainDataSourceConfig {
 	Esplora { server_url: String, sync_config: Option<EsploraSyncConfig> },
+	BitcoindRpc { rpc_host: String, rpc_port: u16, rpc_user: String, rpc_password: String },
 }
 
 #[derive(Debug, Clone)]
@@ -248,6 +249,16 @@ impl NodeBuilder {
 		self
 	}
 
+	/// Configures the [`Node`] instance to source its chain data from the given Bitcoin Core RPC
+	/// endpoint.
+	pub fn set_chain_source_bitcoind_rpc(
+		&mut self, rpc_host: String, rpc_port: u16, rpc_user: String, rpc_password: String,
+	) -> &mut Self {
+		self.chain_data_source_config =
+			Some(ChainDataSourceConfig::BitcoindRpc { rpc_host, rpc_port, rpc_user, rpc_password });
+		self
+	}
+
 	/// Configures the [`Node`] instance to source its gossip data from the Lightning peer-to-peer
 	/// network.
 	pub fn set_gossip_source_p2p(&mut self) -> &mut Self {
@@ -479,6 +490,19 @@ impl ArcedNodeBuilder {
 		self.inner.write().unwrap().set_chain_source_esplora(server_url, sync_config);
 	}
 
+	/// Configures the [`Node`] instance to source its chain data from the given Bitcoin Core RPC
+	/// endpoint.
+	pub fn set_chain_source_bitcoind_rpc(
+		&self, rpc_host: String, rpc_port: u16, rpc_user: String, rpc_password: String,
+	) {
+		self.inner.write().unwrap().set_chain_source_bitcoind_rpc(
+			rpc_host,
+			rpc_port,
+			rpc_user,
+			rpc_password,
+		);
+	}
+
 	/// Configures the [`Node`] instance to source its gossip data from the Lightning peer-to-peer
 	/// network.
 	pub fn set_gossip_source_p2p(&self) {
@@ -633,6 +657,21 @@ fn build_with_store_internal(
 				Arc::clone(&node_metrics),
 			))
 		},
+		Some(ChainDataSourceConfig::BitcoindRpc { rpc_host, rpc_port, rpc_user, rpc_password }) => {
+			Arc::new(ChainSource::new_bitcoind_rpc(
+				rpc_host.clone(),
+				*rpc_port,
+				rpc_user.clone(),
+				rpc_password.clone(),
+				Arc::clone(&wallet),
+				Arc::clone(&fee_estimator),
+				Arc::clone(&tx_broadcaster),
+				Arc::clone(&kv_store),
+				Arc::clone(&config),
+				Arc::clone(&logger),
+				Arc::clone(&node_metrics),
+			))
+		},
 		None => {
 			// Default to Esplora client.
 			let server_url = DEFAULT_ESPLORA_SERVER_URL.to_string();