Como posso fazer upload de um arquivo para o Kloudless do meu Android?

Eu queria fazer upload de um arquivo do meu armazenamento interno do Android para qualquer armazenamento em nuvem (ex.google drive, One drive etc), pois kloudless fornece uma API para fazer upload de arquivo para qualquer armazenamento em nuvem usando accesstoken Eu queria usar a mesma API para fazer upload do arquivo ( https://api.kloudless.com/v1/accounts/accountid+/storage/files/ ).

Eu tentei através do carteiro consigo fazer o upload do arquivo

Agora que tentei através do Android Volley, consigo criar o arquivo na nuvem, mas não há dados dentro dele. Aqui está o meu código

public class MainActivity extends AppCompatActivity {
Button b;
TextView TV;
File myFile;
String responseString;
String path;
public String BASE_URL = "https://api.kloudless.com";
private static final int FILE_SELECT_CODE = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TV = findViewById(R.id.textView);
    b = findViewById(R.id.button);
    b.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            showFileChooser();
        }
    });
}

private void showFileChooser() {
    Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
    intent.setType("*/*");
    intent.addCategory(Intent.CATEGORY_OPENABLE);

    try {
        startActivityForResult(
                Intent.createChooser(intent, "Select a File to Upload"),
                FILE_SELECT_CODE);
    } catch (android.content.ActivityNotFoundException ex) {
        // Potentially direct the user to the Market with a Dialog
        Toast.makeText(this, "Please install a File Manager.",
                Toast.LENGTH_SHORT).show();
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == FILE_SELECT_CODE) {
        if (resultCode == RESULT_OK) {
            // Get the Uri of the selected file
            Uri uri = data.getData();
            Log.d("TAG", "File Uri: " + uri.toString());
            // Get the path
            String path = null;
            try {
                path = FileUtils.getPath(this, uri);
            } catch (URISyntaxException e) {
                e.printStackTrace();
            }
            Log.d("TAG", "File Path: " + path);
            try {
                data();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }

        }
    }
    super.onActivityResult(requestCode, resultCode, data);
}
public void data() throws FileNotFoundException, UnsupportedEncodingException {
    final String url = BASE_URL + "/v1/accounts/" + "accountid" + "/storage/files/";

    final RequestQueue queue = Volley.newRequestQueue(this);
    HashMap<String, Object> params = new HashMap<String, Object>();
    params.put( "file","somedata");

    JSONObject Body=new JSONObject(params);

    final JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url,Body, new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            // response
            Log.d("Response", response.toString());
        }
    },
            new ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    // error
                    Log.d("Error.Response", error.toString());
                }
            }) {
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> params = new HashMap<String, String>();
            params.put("Authorization", "Bearer Bearerkey");
              params.put("Content-Type", "form-data");
            params.put("X-Kloudless-Metadata", "{\"parent_id\":\"root\",\"name\":\"testdone.txt\"}");
         //   params.put("Content-Length", Space);
            return params;
        }



    };
    queue.add(request);
}

Por favor me ajude como enviar o arquivo no corpo da minha solicitação