How to Download Files From Backendless File Hosting

public static void downloadFile(BackendlessFile backendlessFile) throws IOException {
   URL url = new URL(backendlessFile.getFileURL());
   HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
   int responseCode = httpConn.getResponseCode();

   // always check HTTP response code first
   if (responseCode == HttpURLConnection.HTTP_OK) {
       // opens input stream from the HTTP connection
       InputStream inputStream = httpConn.getInputStream();

       InputStreamReader inputStreamReader = new InputStreamReader((inputStream));
       BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

       Log.i(TAG, "File content is:\n===========================");

       String line;
       while ((line = bufferedReader.readLine()) != null) {
           Log.i(TAG, line);
       }

       Log.i(TAG, "===========================");

       inputStream.close();
       bufferedReader.close();
       inputStreamReader.close();

       Log.i(TAG, "File downloaded");
   } else {
       Log.i(TAG, "No file to download. Server replied HTTP code: " + responseCode);
   }
   httpConn.disconnect();
}

@Throws(IOException::class)
fun downloadFile(backendlessFile: BackendlessFile) {
   val url = URL(backendlessFile.fileURL)
   val httpConn = url.openConnection() as HttpURLConnection
   val responseCode = httpConn.responseCode

   // always check HTTP response code first
   if (responseCode == HttpURLConnection.HTTP_OK) {
       // opens input stream from the HTTP connection
       val inputStream = httpConn.inputStream

       Log.i(TAG, "File content is:\n===========================")

       inputStream.reader().forEachLine {
           Log.i(TAG, it)
       }

       Log.i(TAG, "===========================")

       inputStream.close()

       Log.i(TAG, "File downloaded")
   } else {
       Log.i(TAG, "No file to download. Server replied HTTP code: $responseCode")
   }
   httpConn.disconnect()
}

NSString *fileUrl = @"https://someurl.com";
NSURL *url = [NSURL URLWithString:fileUrl];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
NSURLSession *urlSession = [NSURLSession sessionWithConfiguration:NSURLSessionConfiguration.defaultSessionConfiguration];
NSURLSessionDataTask *dataTask = [urlSession dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
    if (data && response) {
        NSLog(@"File has been downloaded");
    }
    else if (error) {
        NSLog(@"Error: %@", [error localizedDescription]);
    }
}];
[dataTask resume];

let fileUrl = "https://someurl.com"     
if let url = URL(string: fileUrl) {
    let request = URLRequest(url: url)
    let urlSession = URLSession(configuration: .default)
    let dataTask = urlSession.dataTask(with: request) { data, response, error in
        if data != nil, response != nil {
            print("File has been downloaded")
        }
        else if let error = error {
            print("Error: \(error.localizedDescription)")
        }
    }
    dataTask.resume()
}

const Backendless = require('backendless')
/*
 Or use `import Backendless from 'backendless'` for client side.
 If you don't use npm or yarn to install modules, you can add the following line
 <script src="//api.backendless.com/sdk/js/latest/backendless.min.js"></script>
 to your index.html file and use the global Backendless variable.
*/

Backendless.initApp('YOUR_APP_ID', 'YOUR_JS_API_KEY')

const fileURL = 'https://example.com/path/to/file.txt'

const onSuccess = fileContent => {
  console.log('File content is:\n===========================')
  console.log(fileContent)
  console.log('===========================')
}

const onError = error => {
  console.error('Server reported an error: ', error.message)
  console.error('error code: ', error.code)
  console.error('http status: ', error.status)
}

Backendless.Request.get(fileURL)
  .then(onSuccess)
  .catch(onError)

static void downloadFile(String url) {
   new HttpClient().getUrl(Uri.parse(url))
   .then((HttpClientRequest request) => request.close())
   .then((HttpClientResponse response) =>
     response.transform(utf8.decoder).listen((contents) {
       print("File content is:\n===========================");
       print(contents);
       print("===========================");
     }));
 }