plugins/grpc: default value for grpc port

plugins/grpc-plugin/src/main.rs

@@ -17,8 +17,9 @@ struct PluginState {
     events : broadcast::Sender<cln_rpc::notifications::Notification>,
 }
 
-const OPTION_GRPC_PORT : options::IntegerConfigOption = options::ConfigOption::new_i64_no_default(
-    "grpc-port", 
+const OPTION_GRPC_PORT : options::DefaultIntegerConfigOption = options::ConfigOption::new_i64_with_default(
+    "grpc-port",
+    9736,
     "Which port should the grpc plugin listen for incoming connections?");
 
 const OPTION_GRPC_MSG_BUFFER_SIZE : options::DefaultIntegerConfigOption = options::ConfigOption::new_i64_with_default(
@@ -53,17 +54,7 @@ async fn main() -> Result<()> {
         None => return Ok(()),
     };
 
-    let bind_port = match plugin.option(&OPTION_GRPC_PORT).unwrap() {
-        Some(port) => port,
-        None => {
-            log::info!("'grpc-port' options i not configured. exiting.");
-            plugin
-                .disable("Missing 'grpc-port' option")
-                .await?;
-            return Ok(())
-        }
-    };
-
+    let bind_port : i64 = plugin.option(&OPTION_GRPC_PORT).unwrap();
     let buffer_size  : i64 = plugin.option(&OPTION_GRPC_MSG_BUFFER_SIZE).unwrap();
     let buffer_size = match usize::try_from(buffer_size) {
         Ok(b) => b,
@@ -137,7 +128,7 @@ async fn run_interface(bind_addr: SocketAddr, state: PluginState) -> Result<()>
 async fn handle_notification(plugin : Plugin<PluginState>, value : serde_json::Value) -> Result<()> {
     let notification : Result<Notification, _> = serde_json::from_value(value);
     match notification {
-        Err(err) => { 
+        Err(err) => {
             log::debug!("Failed to parse notification from lightningd {:?}", err);
         },
         Ok(notification) => {
@@ -148,4 +139,4 @@ async fn handle_notification(plugin : Plugin<PluginState>, value : serde_json::V
         }
     };
     Ok(())
-}
+}