adde dmore error catching

Author: ehsan6sha

android/src/main/java/land/fx/fula/FulaModule.java

@@ -739,17 +739,26 @@ public void writeFile(String fulaTargetFilename, String localFilename, Promise p
     ThreadUtils.runOnExecutor(() -> {
       Log.d("ReactNative", "writeFile to : path = " + fulaTargetFilename + ", from: " + localFilename);
       try {
-        land.fx.wnfslib.Config config = Fs.writeFileFromPath(this.client, this.rootConfig.getCid(), this.rootConfig.getPrivate_ref(), fulaTargetFilename, localFilename);
-        if(config != null) {
-          this.rootConfig = config;
-          this.encrypt_and_store_config();
-          if (this.fula != null) {
-            this.fula.flush();
+        if (this.client != null) {
+          Log.d("ReactNative", "writeFileFromPath started: this.rootConfig.getCid=" + this.rootConfig.getCid()+ ", fulaTargetFilename="+fulaTargetFilename + ", localFilename="+localFilename);
+          land.fx.wnfslib.Config config = Fs.writeFileFromPath(this.client, this.rootConfig.getCid(), this.rootConfig.getPrivate_ref(), fulaTargetFilename, localFilename);
+          if(config != null) {
+            this.rootConfig = config;
+            this.encrypt_and_store_config();
+            if (this.fula != null) {
+              this.fula.flush();
+              promise.resolve(config.getCid());
+            } else {
+              Log.d("ReactNative", "writeFile Error: fula is null");
+              promise.reject(new Exception("writeFile Error: fula is null"));
+            }
+          } else {
+            Log.d("ReactNative", "writeFile Error: config is null");
+            promise.reject(new Exception("writeFile Error: config is null"));
           }
-          promise.resolve(config.getCid());
         } else {
-          Log.d("ReactNative", "writeFile Error: config is null");
-          promise.reject(new Exception("writeFile Error: config is null"));
+          Log.d("ReactNative", "writeFile Error: client is null");
+          promise.reject(new Exception("writeFile Error: client is null"));
         }
       } catch (Exception e) {
         Log.d("get", e.getMessage());

example/src/App.tsx

@@ -31,15 +31,15 @@ const App = () => {
         console.log(err.message, err.code);
       });
   };
-  //Key for peerId: 12D3KooWDPZGpr4Jeq144R2KhezH7UHgHqyMXySh8tA5jzUyu2P8
+  //Key for peerId: 12D3KooWFi2PK36Rzi4Bmosj1np2t6i9v3QnbBiNY9hQWuJajnmZ
   const privateKey = [
     183, 7, 117, 9, 159, 132, 170, 235, 215, 34, 145, 181, 60, 207, 4, 27, 27,
     17, 17, 167, 100, 89, 157, 218, 73, 200, 183, 145, 104, 151, 204, 142, 241,
     94, 225, 7, 153, 168, 239, 94, 7, 187, 123, 158, 149, 149, 227, 170, 32, 54,
     203, 243, 211, 78, 120, 114, 199, 1, 197, 134, 6, 91, 87, 152,
   ];
   const privateKeyString = "\\test";
-  const bloxAddr = '/dns/relay.dev.fx.land/tcp/4001/p2p/12D3KooWDRrBaAfPwsGJivBoUw5fE7ZpDiyfUjqgiURq2DEcL835/p2p-circuit/p2p/12D3KooWQR2XygKM7jhBduhvz2GDJdGEbZL8SZhkeBuXYPn2kRt6';
+  const bloxAddr = '/dns/relay.dev.fx.land/tcp/4001/p2p/12D3KooWDRrBaAfPwsGJivBoUw5fE7ZpDiyfUjqgiURq2DEcL835/p2p-circuit/p2p/12D3KooWLGatFxDzMrKd4S6UC4GAtuM4zcFJW8RPuMR9SH7j46A8';
   const newClient = async () => {
     try {
       return fula.newClient(