My uploaded files on Dropbox are 0 bytes/ empty.

[kmsbs]

I have an app,In this app we are using dropbox v2 for upload or download  a file.

I uplaoded a file but it shown as a empty file and 0 byte.

[Jane]

Hey kmsbs, thanks for getting in touch with us on the Dropbox Community! 

As I’d like to help you on the issue you’ve experienced as much as possible, can you clarify whether you’re uploading your file using the web Uploader, your mobile, through your desktop or if you’ve created your own app that’s uploading your files to the Dropbox folder? 

Once I have a bit more info, I’ll make sure to send you the most relevant next steps here. Thanks again & I’ll be awaiting your next post on this discussion! 

[kmsbs]

this is my code :

public class UploadTask extends AsyncTask {
    private DbxClientV2 dbxClient;
    private File file;
    @SuppressLint("StaticFieldLeak")
    private Context context;
    ProgressDialog dialog;

    UploadTask(DbxClientV2 dbxClient, File file, Context context) {
        this.dbxClient = dbxClient;
        this.file = file;
        this.context = context;
    }

    @Override
    protected Object doInBackground(Object[] params) {
        try {
            // Log.e("async read",ReadFile(file));
            InputStream inputStream = new FileInputStream(file);
            dbxClient.files().uploadBuilder("/" +file.getName()) //Path in the user's Dropbox to save the file.
                    .withMode(WriteMode.OVERWRITE) //always overwrite existing file
                    .uploadAndFinish(inputStream);
            Log.e("Upoad", "" + dbxClient.files().uploadBuilder("/" + file.getName()) //Path in the user's Dropbox to save the file.
                    .withMode(WriteMode.OVERWRITE) //always overwrite existing file
                    .uploadAndFinish(inputStream));
        } catch (DbxException e) {
            e.printStackTrace();

        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;

    }

    @Override
    protected void onPostExecute(Object o) {
        super.onPostExecute(o);
        DownloadActivity.dialog.dismiss();
        Toast.makeText(context, "File uploaded successfully", Toast.LENGTH_SHORT).show();
        Intent intent = new Intent(context, LoginActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(intent);

    }

    public static  String ReadFile(File file){
        String line = null;

        try {
            FileInputStream fileInputStream = new FileInputStream (file);
            InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            StringBuilder stringBuilder = new StringBuilder();

            while ( (line = bufferedReader.readLine()) != null )
            {
                stringBuilder.append(line + System.getProperty("line.separator"));
            }
            fileInputStream.close();
            line = stringBuilder.toString();

            bufferedReader.close();
        }
        catch(FileNotFoundException ex) {
            Log.d("FileNotFoundException", ex.getMessage());
        }
        catch(IOException ex) {
            Log.d("IOException", ex.getMessage());
        }
        return line;
    }
}

[kmsbs]

File data : 

[{"Working-hours":[{"User-id":"1","User-name":"user1","Client-id":"1","Client-name":"test1","Project-id":"1","Project-name":"name1","Job-id":"1","Job-name":"job1","Start-hour":"7","End-hour":"18","Work-date":"30-04-2018","Total-Working-hours":"8-hours","Edit-time":"19.00-30-04-2018","material-name":"material1","material-date":"30-04-2018","Notes":"note1"},{"User-id":"2","User-name":"user2","Client-id":"2","Client-name":"test2","Project-id":"2","Project-name":"name2","Job-id":"2","Job-name":"job2","Start-hour":"7","End-hour":"18","Work-date":"30-04-2018","Total-Working-hours":"8-hours","Edit-time":"19.00-30-04-2018","material-name":"material2","material-date":"30-04-2018","Notes":"note2"},{"User-id":"3","User-name":"user3","Client-id":"3","Client-name":"test3","Project-id":"3","Project-name":"name3","Job-id":"3","Job-name":"job3","Start-hour":"7","End-hour":"18","Work-date":"30-04-2018","Total-Working-hours":"8-hours","Edit-time":"19.00-30-04-2018","material-name":"material3","material-date":"30-04-2018","Notes":"note3"}],"Used-materials":[{"User-id":"1","User-name":"user1","Client-id":"1","Client-name":"test1","Project-id":"1","Project-name":"name1","Material-id":"1","Material-name":"material1","Date":"04-05-2018"},{"User-id":"2","User-name":"user2","Client-id":"1","Client-name":"test2","Project-id":"2","Project-name":"name2","Material-id":"1","Material-name":"material2","Date":"04-05-2018"},{"User-id":"3","User-name":"user3","Client-id":"3","Client-name":"test3","Project-id":"3","Project-name":"name3","Material-id":"3","Material-name":"material3","Date":"04-05-2018"}]}]

[Jane]

Hey kmsbs, I've moved your thread to the API section, as this will need to be reviewed by my colleagues here. 

Thanks for reaching out to us & enjoy the rest of your day! 

[kmsbs]

hello sir,
any solution

[Greg-DB · Accepted solution]

@kmsbs In your code, you're actually calling `uploadAndFinish` twice; once on its own, and then again inside your `Log.e` call. When you call the second time, the `inputStream` is consumed, so you end up uploading a zero byte file. Update your code to only do the upload once.

[kmsbs]

thanks it work fine