Expose list_peers to bindings

Author: Jurvis Tan

bindings/ldk_node.udl

@@ -51,6 +51,7 @@ interface Node {
 	[Throws=NodeError]
 	Invoice receive_variable_amount_payment([ByRef]string description, u32 expiry_secs);
 	PaymentInfo? payment_info([ByRef]PaymentHash payment_hash);
+	sequence<PublicKey> list_peers();
 };
 
 [Error]

src/lib.rs

@@ -1341,6 +1341,11 @@ impl Node {
 	pub fn payment_info(&self, payment_hash: &PaymentHash) -> Option<PaymentInfo> {
 		self.payment_store.get(payment_hash)
 	}
+
+	/// List node's connected peers.
+	pub fn list_peers(&self) -> Vec<PublicKey> {
+		self.peer_manager.get_peer_node_ids().iter().map(|(pubkey, _)| *pubkey).collect::<Vec<_>>()
+	}
 }
 
 async fn connect_peer_if_necessary(

src/test/functional_tests.rs

@@ -37,6 +37,8 @@ fn channel_full_cycle() {
 		.connect_open_channel(&node_b.node_id(), &node_b.listening_address().unwrap(), 50000, true)
 		.unwrap();
 
+	assert_eq!(node_a.list_peers(), [node_b.node_id()]);
+
 	let funding_txo = loop {
 		let details = node_a.list_channels();