LND stop daemon

android/src/main/java/com/reactnativelightning/ReactNativeLightningModule.java

@@ -78,17 +78,7 @@ private static boolean isStream(Method m) {
     }
 
     public void LndNativeModule(ReactApplicationContext reactContext) {
-        //Populate all available methods found in Lndmobile
-        Method[] methods = Lndmobile.class.getDeclaredMethods();
-        for (Method m : methods) {
-            String name = m.getName();
-            name = name.substring(0, 1).toUpperCase() + name.substring(1);
-            if (isStream(m)) {
-                streamMethods.put(name, m);
-            } else {
-                syncMethods.put(name, m);
-            }
-        }
+        setAvailableMethods();
     }
 
     @Override
@@ -102,6 +92,21 @@ public Map<String, Object> getConstants() {
         return constants;
     }
 
+    //Populate all available methods found in Lndmobile
+    private void setAvailableMethods() {
+        Method[] methods = Lndmobile.class.getDeclaredMethods();
+
+        for (Method m : methods) {
+            String name = m.getName();
+            name = name.substring(0, 1).toUpperCase() + name.substring(1);
+            if (isStream(m)) {
+                streamMethods.put(name, m);
+            } else {
+                syncMethods.put(name, m);
+            }
+        }
+    }
+
     @ReactMethod
     public void start(String configContent, String network, final Promise promise) {
         File appDir = getReactApplicationContext().getFilesDir();
@@ -437,14 +442,26 @@ public void onResponse(byte[] bytes) {
 
         Method m = syncMethods.get(method);
         if (m == null) {
-            promise.reject("LndNativeModule", "method not found");
-            return;
+            //Not all methods are exposed at time of init. Re-populate the available methods to make sure before rejecting.
+            setAvailableMethods();
+            m = syncMethods.get(method);
+            if (m == null) {
+                promise.reject("LndNativeModule",  "'" + method + "' method not found");
+                return;
+            }
         }
 
         byte[] b = Base64.decode(msg, Base64.NO_WRAP);
 
         try {
             m.invoke(null, b, new NativeCallback(promise));
+
+            //If LND was stopped reset state
+            if (method.equals("StopDaemon")) {
+                state.setLndRunning(false, getReactApplicationContext());
+                state.setGrpcReady(false, getReactApplicationContext());
+                state.setWalletUnlocked(false, getReactApplicationContext());
+            }
         } catch (IllegalAccessException | InvocationTargetException e) {
             e.printStackTrace();
             promise.reject("LndNativeModule", e);

example/App.tsx

@@ -75,6 +75,22 @@ const App = () => {
               const res = await lnd.start(lndConf);
 
               if (res.isErr()) {
+                setMessage(res.error.message);
+                console.error(res.error);
+                return;
+              }
+
+              setMessage(JSON.stringify(res.value));
+            }}
+          />
+
+          <Button
+            title={'Stop LND'}
+            onPress={async () => {
+              setMessage('Stopping LND...');
+              const res = await lnd.stop();
+              if (res.isErr()) {
+                setMessage(res.error.message);
                 console.error(res.error);
                 return;
               }

ios/ReactNativeLightning.swift

@@ -303,12 +303,19 @@ class ReactNativeLightning: NSObject {
     }
 
     let completion = BlindLndCallback(onResponse)
-
+    
     guard let lndMethod = syncMethods[method as String] else {
       return onResponse(nil, LightningError.unknownMethod)
     }
 
     lndMethod(request, completion)
+
+    //If LND was stopped reset state
+    if method == "StopDaemon" {
+        ReactNativeLightning.state.lndRunning = false
+        ReactNativeLightning.state.grpcReady = false
+        ReactNativeLightning.state.walletUnlocked = false
+    }
   }
 
   @objc

package.json

@@ -1,7 +1,7 @@
 {
   "name": "react-native-lightning",
   "title": "React Native Lightning",
-  "version": "0.0.17",
+  "version": "0.0.18",
   "description": "React Native wrapper for Lndmobile",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",

src/lnd.ts

@@ -674,6 +674,24 @@ class LND {
 			return err(e);
 		}
 	}
+
+	/**
+	 * Stop the LND daemon
+	 * @returns {Promise<Ok<lnrpc.StopResponse, Error> | Err<unknown, any>>}
+	 */
+	async stop(): Promise<Result<lnrpc.StopResponse, Error>> {
+		try {
+			const message = lnrpc.StopRequest.create();
+			const serializedResponse = await this.grpc.sendCommand(
+				EGrpcSyncMethods.StopDaemon,
+				lnrpc.StopRequest.encode(message).finish()
+			);
+
+			return ok(lnrpc.StopResponse.decode(serializedResponse));
+		} catch (e) {
+			return err(e);
+		}
+	}
 }
 
 export default new LND();