Develop Reference

How should i get the data from sourceJson in android using volley?

Below is the response what i am getting i want to get the data from "SourceJson" m not ble to understnd why i am getting "" in source json please help me
{
"incomingOrder": [
{
"Namw": 8510,
"Surname": "00",
"mob": "00",
"phone": "000",
"SourceJson": "{\"cart_gst\":30.21,\"instructions\":\"\",\"order_packing_charges\":30,\"cart_igst_percent\":0,\"cart_sgst\":15.1038,}",
"test": "NotSynced",
"test": "DPA",
}]}

Try this code :
requestQueue = Volley.newRequestQueue(this);
JsonObjectRequest obreq = new JsonObjectRequest(Request.Method.GET, JsonURL,
// The third parameter Listener overrides the method onResponse() and passes
//JSONObject as a parameter
new Response.Listener<JSONObject>() {
// Takes the response from the JSON request
#Override
public void onResponse(JSONObject response) {
try {
JSONArray jsonArray = response.getJSONArray("incomingOrder");
JSONObject jsonObject = jsonArray.getJSONObject(0);
JSONObject objSourceJson=jsonObject.getJSONObject("SourceJson");
Log.i("IvaSourceJson",objSourceJson.toString());
String cart_gst=objSourceJson.getString("cart_gst");
String instructions=objSourceJson.getString("instructions");
}
// Try and catch are included to handle any errors due to JSON
catch (JSONException e) {
// If an error occurs, this prints the error to the log
e.printStackTrace();
}
}
},
// The final parameter overrides the method onErrorResponse() and passes VolleyError
//as a parameter
new Response.ErrorListener() {
#Override
// Handles errors that occur due to Volley
public void onErrorResponse(VolleyError error) {
Log.e("Volley", "Error");
}
}
);
// Adds the JSON object request "obreq" to the request queue
requestQueue.add(obreq);

As it is JSONArray data is of list type, better not to use jsonArray.getJSONObject(0);.
Use this code for multiple results,
StringRequest request = new StringRequest(Request.Method.GET, "", new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("Response", response);
try {
JSONObject object = new JSONObject(response);
JSONArray array = object.getJSONArray("incomingOrder");
for (int i = 0; i < array.length(); i++){
JSONObject object1 = array.getJSONObject(i);
String name = object1.getString("Namw");
String surname = object1.getString("Surname");
String mob = object1.getString("mob");
String phone = object1.getString("phone");
String sourceJson = object1.getString("SourceJson");
String test = object1.getString("test");
String test1 = object1.getString("test");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Error", error.getMessage());
}
});
Context context;
RequestQueue queue = Volley.newRequestQueue(getApplicationContext());
queue.add(request);
Code this in any method and call the method where the action needed.

Parsing Json object received from rest api

I am using Volley library to execute my rest APIs.
Using this I have sent email, password entries to URL and receiving response in JSON as:
{
"success": true,
"data": {
"message": false,
"token": "some token value"
}
}
Now I want to parse the 'token' field received from response and do further action. How can this be parsed?
This is the function where I want to parse the response.
public void parseData(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
if (jsonObject.getString("success").equals("true")) {
Toast.makeText(MainActivity.this,"UserExists",Toast.LENGTH_LONG).show();
////RETRIEVE "token" HERE
else {
Toast.makeText(MainActivity.this,"User not registered",Toast.LENGTH_LONG).show();
}
I have seen this link How to parse JSON Object Android Studio but my "token" field is within another object, so not sure how to do it.

if you want to parse JSON in same manual way you have to do like this to get token.
try {
JSONObject jsonObject = new JSONObject(response);
if (jsonObject.getBoolean("success")== true) {
Toast.makeText(MainActivity.this, "UserExists", Toast.LENGTH_LONG).show();
JSONObject dataObj= jsonObject.getJSONObject("data");
String token= dataObj.getString("token");
////RETRIEVE "token" HERE
} else {
Toast.makeText(MainActivity.this, "User not registered", Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}

Here is the solution
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
Request.Method.GET, url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
JSONObject dataObj = response.getObject("data");
String token = dataObj.getString("token");
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// TODO: Handle error
}
}
);
Please use POJO for parsing. Otherwise you will take more time to do this kind of work.

If you are using Volley, why not simply use the JsonObjectRequest:
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
Request.Method.GET,
url,
null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
// parse the response
JSONObject data= response.getObject("data");
String token = data.getString("token");
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// TODO: Handle error
}
}
);
MySingleton.getInstance(this).addToRequestQueue(jsonObjectRequest);

You can try like following.
public void parseData(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
if (jsonObject.getString("success").equals("true")){
Toast.makeText(MainActivity.this,"UserExists",Toast.LENGTH_LONG).show();
////RETRIEVE "token" HERE
JSONObject dataObject = jsonObject.getObject("data");
String token = dataObject.getString("token");
}
else {
Toast.makeText(MainActivity.this,"User not registered",Toast.LENGTH_LONG).show();
}
}catch(JSONException e) {
Log.e("YourTAG","exceptions "+e.toString());
}
Hope it helps you.

Unable to call POST method using Volley

Code as below:
public void loginPost(String url, String emailAddress, String password){
Map<String, String> params = new HashMap();
params.put("email", emailAddress);
params.put("password", password);
JSONObject parameters = new JSONObject(params);
String LOGIN_REQUEST_TAG = "LOGIN_REQUEST_TAG";
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, url, parameters, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("Login Response:", response.toString());
JSONObject responseOject = response;
if(responseOject.has("data")){
try {
Log.d("Data Response", responseOject.getString("data"));
} catch (JSONException e) {
e.printStackTrace();
}
}else if(responseOject.has("error")){
try {
errorMessage = responseOject.getString("error");
new AlertDialog.Builder(MainActivity.this)
.setTitle("Error")
.setMessage(errorMessage)
.setNegativeButton("OK", null)
.show();
} catch (JSONException e) {
e.printStackTrace();
}
}else{
//Server error. Come back again later
Log.d("Server error", "Server Error");
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.e("Error at login: ", error.getMessage());
}
});
AppSingleton.getInstance(getApplicationContext()).addToRequestQueue(jsonObjectRequest,LOGIN_REQUEST_TAG);
}
All the parameters and URL are correct as I have checked it during debug. And everything works fine in Postman as well. However, the code above just wont go into onResponse method and I am not receiving any error. But it is giving a warning that "responseOject" is redundant. Am I doing it wrongly? Quite new to Android development.
Error:
BasicNetwork.performRequest: Unexpected response code 401
It is a POST API and I am using Request.Method.Post, why am I receiving that error?

Before using the API test it in Postman. You will get a clear view of what is happening.
The error code 401 means you parameters are wrong. OR you are unauthorized to access that API.
Try this code for this type of call.
private void callNetwork(final String email, final String password) {
String json_object_request = "jsonObjectRequest";
//Creating a string request
StringRequest stringRequest = new StringRequest(Request.Method.POST, Config.URL_LOGIN,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
if (response != null) {
parseData(response);
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressBar.setVisibility(View.GONE);
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
//Adding parameters to request
params.put("email", email);
params.put("password", password);
//returning parameter
return params;
}
};
//Adding the string request to the queue
AppController.getInstance().addToRequestQueue(stringRequest, json_object_request);
}

String to jsonObject

On the below code i want to use Response but it throws JSONException
StringRequest strReq = new StringRequest(Request.Method.POST, REGISTER_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.v(TAG, "Response: " + response);//output {"error":false}
try {
JSONObject jo = new JSONObject(response); // java.lang.String cannot be converted to JSONObject
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
Sample JSON string:
{
"error": false,
"uid": "5b081af13eb974.69226352",
"user": {
"name": "66699",
"created_at": "2018-05-25 18:47:21"
}
}
How i should solve this?

Well, to retrieve the content of your response you don't need to use JSON while using POST request. Instead do something like this :
if (response.equalsIgnoreCase("yourResponseFromTheWebService")) {
...
Toast
} else if (response.equalsIgnoreCase("OtherPossibleResponse")){
....
Toast
} else{
....
Toast
}
in case of GET request you should do something like this :
JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, URL, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
// display response
try {
//put response into string
JSONArray Jresult = response.getJSONArray("user");
for (int i = 0; i < Jresult.length(); i++) {
JSONObject json_data = Jresult.getJSONObject(i);
String lName = json_data.getString("name");
String lCreatedAt = json_data.getString("created_at");
//create a model class with your user info like name and created_at and for every user found create a new user object and store its info.
_myUser.add(new User(lName, lCreatedAt));
}
} catch (JSONException e) {
e.printStackTrace();
}
Log.d("Response", response.toString());
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Error.Response", error.toString());
}
}
);
RequestQueue queue = Volley.newRequestQueue(this);
queue.add(getRequest);

Android Json Arraylist to Server with Restful Web service

This is my Arraylist which I get from the previous fragment,
listoftags = getArguments().getParcelableArrayList("data");
It works well. Now I have to send this with some parameters like below:
public void volleyJsonObjectRequest(final String SessionID , final String CustomerID, final String ServiceState , final String ServiceID, final String Address, final String PaymentMode, final String CustomerComments , final ArrayList Items){
String REQUEST_TAG = "volleyJsonObjectRequest";
// POST parameters
CustomRequest request = new CustomRequest(Request.Method.POST, url, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
// Toast.makeText(SignActivity.this, response.toString(), Toast.LENGTH_SHORT).show();
Log.d("response",""+response.toString());
/* String status = response.optString("StatusMessage");
String actionstatus = response.optString("ActionStatus");
Toast.makeText(getActivity(), ""+status, Toast.LENGTH_SHORT).show();
if(actionstatus.equals("Success"))
{
// Intent i = new Intent(SignActivity.this, LoginActivity.class);
// startActivity(i);
// finish();
}*/
dismissProgress();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), "Error."+error.toString(), Toast.LENGTH_SHORT).show();
Log.d("response",""+error.toString());
dismissProgress();
}
}) {
/* #Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}*/
public String getBodyContentType()
{
return "application/json; charset=utf-8";
}
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
JSONArray jsArray = new JSONArray(listoftags);
params.put("SessionID", SessionID);
params.put("CustomerID", CustomerID);
params.put("ServiceState", ServiceState);
params.put("ServiceID", ServiceID);
params.put("Address", Address);
params.put("PaymentMode",PaymentMode);
params.put("CustomerComments",CustomerComments);
params.put("Items",jsArray.toString());
return params;
}
};
AppSingleton.getInstance(getActivity().getApplicationContext())
.addToRequestQueue(request, REQUEST_TAG);
}
but it getting error to me I want to send it like
// server side //
{
"SessionID":"9lm5255sg0ti9",
"CustomerID":"9",
"ServiceState":"Karnataka",
"ServiceID":"3",
"Address":"sfaff",
"PaymentMode":"cash",
"CustomerComments":"this is fine",
"Items":[
{
"ItemId":1,
"Cost":6777,
"Quantity":33333
}
]
}
How can send arraylist, with other strings, as raw data using volley on server.

JsonObjectRequest can be used to execute rest api using json as input.
JsonObject jobj = new JsonObject();
jobj.put("key","value");
jobj.put("key","value");
jobj.put("key","value");
jobj.put("key","value");
JsonObjectRequest request = new JsonObjectRequest(requestURL, jobj, new Response.Listener<JSONObject>()
{
#Override
public void onResponse(JSONObject response) {
}
}, new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error) {
}
});
*Now add this request in request queue of volley.*
Here jobj is containing input parameters. It can contain even json array inside a JsonObject. Let me know in case of any query.

Rather then volley try retrofit. Make pojo model of your object you want to send, you can make that from pojo classes from https://www.jsonschema2pojo.org the send the whole object on restapi

// try the request //
try {
REQUEST QUEUE
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
String URL = url;
JSONObject jsonBody = new JSONObject();
JSONObject jsonObject = new JSONObject();
JSONArray jsonArray = new JSONArray();
Iterator itr = listoftags.iterator();
while(itr.hasNext()){
AddRowItem ad=(AddRowItem)itr.next();
jsonObject.put("ItemId:",1);
jsonObject.put("Cost:",ad.getPrices());
jsonObject.put("Quantity:",ad.getQty());
// Log.d("ItemId:",""+1+" "+"Cost:"+ad.getPrices()+" "+"Quantity:"+ad.getQty());
}
jsonArray.put(jsonObject);
JSON VALUES PUT
jsonBody.put("SessionID", "9kp0851kh6mk3");
jsonBody.put("CustomerID", "9");
jsonBody.put("ServiceState", "Karnataka");
jsonBody.put("ServiceID", "3");
jsonBody.put("Address", "Address Demo");
jsonBody.put("PaymentMode", "cost");
jsonBody.put("CustomerComments", "Android Volley Demo");
jsonBody.put("Items", jsonArray);
final String requestBody = jsonBody.toString();
Log.d("string ---- >",""+requestBody);
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.i("VOLLEY", response);
showToast("get value"+response.toString());
try {
JSONObject jObj = new JSONObject(response);
String action = jObj.get("ActionStatus").toString();
String status = jObj.getString("StatusMessage");
{"ActionStatus":"Success","StatusMessage":"Order Created","RefIDName":"OrderID","RefIDValue":19}
showToast("get value"+action);
}
catch (JSONException e)
{
showToast("get error"+e.toString());
Log.d("errorissue",""+e.toString());
}
dismissProgress();
}
}, new Response.ErrorListener() {
// error response //
public void onErrorResponse(VolleyError error) {
Log.e("VOLLEY", error.toString());
showToast("get error"+error.toString());
dismissProgress();
}
}) {
#Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
#Override
public byte[] getBody() throws AuthFailureError {
try {
return requestBody == null ? null : requestBody.getBytes("utf-8");
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", requestBody, "utf-8");
return null;
}
}
};
requestQueue.add(stringRequest);
} catch (JSONException e) {
e.printStackTrace();
dismissProgress();
}
}
}
// THIS IS THE WAY ISSUE RESLOVED //
THANKS EVERYONE ...