Delete volley showing response code 400

See more:

Java

Android

i need help to fix this bug, i already use a delete method in volley but when i tried,
the code showing response 400, here is my code

JSONObject params = new JSONObject();
               try {
                   String id = getIntent().getStringExtra(KEY_NIK);
                   params.put("id", id);
               }
               catch (JSONException e) {
                   e.printStackTrace();
               }

               JsonObjectRequest request=new JsonObjectRequest(Request.Method.DELETE, "http://******/index", params, new Response.Listener<JSONObject>() {
                   @Override
                   public void onResponse(JSONObject response) {
                       hideDialog();
                       Toast.makeText(getApplicationContext(), "sudah di update", Toast.LENGTH_LONG).show();
                       detail_activity.this.finish();

                   }
               }, new Response.ErrorListener() {
                   @Override
                   public void onErrorResponse(VolleyError error) {
                       Toast.makeText(getApplicationContext(), "maaf ada kesalahan", Toast.LENGTH_LONG).show();

                   }
               })
               {
                   @Override
                   public Map<String, String> getHeaders() throws AuthFailureError {
                       HashMap<String, String> headers = new HashMap<String, String>();
                       String creds = String.format("%s:%s", "admin", "Databa53");
                       String auth = "Basic " + Base64.encodeToString(creds.getBytes(), Base64.DEFAULT);
                       headers.put("Authorization", auth);
                       return getHeaders();
                   }
               };
               RequestQueue requestQueue = Volley.newRequestQueue(detail_activity.this);
               requestQueue.add(request);

What I have tried:

i tried using postman but in worked but when i using android, it doesn't work