BasicNetwork.performRequest: Unexpected response code 401 android Volley library

21,438

Solution 1

This error means you need to authenticate. You can do so adding getHeaders() to your code, so it goes like this:

RequestQueue queue = Volley.newRequestQueue(getActivity()); 
JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, Server.URL, null,
        new Response.Listener<JSONObject>()
        {
            @Override
            public void onResponse(JSONObject response) {  
                // display response    
                hideProgressDialog();

            }
        },
        new Response.ErrorListener()
        {
             @Override
             public void onErrorResponse(VolleyError error) {           
                 hideProgressDialog();
           }
        }

        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> params = new HashMap<String, String>();
            params.put("Content-Type", "application/json");
            String creds = String.format("%s:%s","username","password");
            String auth = "Basic " + Base64.encodeToString(creds.getBytes(), Base64.DEFAULT);
            params.put("Authorization", auth);
            return params;
        }
    );

queue.add(getRequest);

Solution 2

HTTP 401 means that the website requires authentication and it was not provided or it failed. You need to authenticate yourself. Unknown whether you need to provide HTTP Basic Authentication or if the webservice has special authentication required and is just being clever with its return value.

Solution 3

If we use POST instead of GET or GET instead of POST mans this error will occur

So, Change GET to Post in this line

JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, Server.URL, null, new Response.Listener<JSONObject>()

Solution 4

String http_post() {

RequestQueue MyRequestQueue = Volley.newRequestQueue(Library.this);

//String url = "http://" + "hqplayer" + ":" + Utils.password + "@" + Utils.ip + ":8088/library";
String url = "http://" + Utils.ip + ":8088/library";
Log.i(TAG, "HttpPost() <" + url + ">");
String credentials = "hqplayer:valvole";
byte[] t = credentials.getBytes();
byte[] auth = Base64.encode(t, Base64.DEFAULT);
final String basicAuthValue = new String(auth);
MyRequestQueue.add(new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
   @Override
   public void onResponse(String response) {
       Log.i(TAG, "HttpPost() - onResponse() ");               
   }
}, new Response.ErrorListener() {
   @Override
   public void onErrorResponse(VolleyError error) {
       Log.i(TAG, "HttpPost() - onErrorResponse() ");
       Log.i(TAG, "HttpPost() error <" + error + ">");
   }
}) {
   @Override
   public Map<String, String> getHeaders() throws AuthFailureError {
       HashMap<String, String> params = new HashMap<String, String>();
       String creds = String.format("%s:%s","hqplayer","valvole");
       String auth = "Basic " + Base64.encodeToString(creds.getBytes(), Base64.DEFAULT);
       params.put("Authorization", auth);
       return params;
    }});
   return null;
}

Solution 5

Add getHeader

@Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> headers = new HashMap<String, String>();
            headers.put("token", SharedVariables.TOKEN);
            headers.put("device", SharedVariables.DEVICE_ID);
            headers.put("accept-language", "en-US");
            headers.put("api-version", "1.0");
            return headers;
        }
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21,438
John
Author by

John

Updated on May 15, 2020

Comments

  • John
    John almost 4 years

    Iam calling web service in android . in that i want to call the URL i am not sending any params to the server, just calling the URL ,

    But its getting Error like [10520] BasicNetwork.performRequest: Unexpected response code 401

    my code is

    RequestQueue queue = Volley.newRequestQueue(getActivity()); 
        JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, Server.URL, null,
                new Response.Listener<JSONObject>()
                {
                    @Override
                    public void onResponse(JSONObject response) {  
                                    // display response    
                        hideProgressDialog();
    
                    }
                },
                new Response.ErrorListener()
                {
                     @Override
                     public void onErrorResponse(VolleyError error) {           
                         hideProgressDialog();
                   }
                }
            );
    
            // add it to the RequestQueue  
            queue.add(getRequest);
    

    How to solve this?

  • John
    John almost 9 years
    i am calling the login web service with json params its working fine after login web service call its not working. any guess???
  • Gabe Sechan
    Gabe Sechan almost 9 years
    Yes, of those images need authentication
  • Tobias Wilfert
    Tobias Wilfert over 5 years
    Please add some context to your answer.