add successCallback when sdk is initialized

@@ -163,7 +163,10 @@ typedef void (^FailureResponse)(NSURLSessionDataTask * _Nullable task, NSError *
     NSLog(@"=== _sharedService: %@", _sharedService );
     NSLog(@"=== _sharedService: %@", _sharedService );
     //Launch Once
     //Launch Once
     if (_sharedService != nil) {
     if (_sharedService != nil) {
-        // TODO: Maybe add failure callback here? - msg: "already launched"
+        NSDictionary* successCallback = [[NSMutableDictionary alloc] init];
+        [successCallback setValue:@1 forKey:@"status"];
+        [successCallback setValue:@"success: already launched" forKey:@"msg"];
+        success(successCallback);
         return;
         return;
     }
     }