Volley JsonObjectRequest Post request not working

Question

I am using android Volley for making a request  So I use this code  I don t understand one thing  I check in my server that params is always null  I consider that getParams   not working  What should I do to solve this issue    RequestQueue queue   MyVolley getRequestQueue            JsonObjectRequest jsObjRequest   new JsonObjectRequest Request Method POST SPHERE URL null                  new Response Listener lt JSONObject gt                           Override                     public void onResponse JSONObject response                            System out println response                           hideProgressDialog                                                             new Response ErrorListener                          Override                     public void onErrorResponse VolleyError error                          hideProgressDialog                                                           protected Map lt String  String gt  getParams   throws AuthFailureError                   Map lt String  String gt  params   new HashMap lt String  String gt                     params put  id   1                    params put  name    myname                    return params                                    queue add jsObjRequest

User · Answer

The override function getParams works fine. You use POST method and you have set the jBody as null. That's why it doesn't work. You could use GET method if you want to send null jBody. I have override the method getParams and it works either with GET method (and null jBody) either with POST method (and jBody != null)

Also there are all the examples here

User · Answer

When you working with JsonObject request you need to pass the parameters right after you pass the link in the initialization   take a look on this code            HashMap lt String  String gt  params   new HashMap lt  gt             params put  user    something             params put  some params    something          JsonObjectRequest request   new JsonObjectRequest Request Method POST   request URL   new JSONObject params   new Response Listener lt JSONObject gt               Override         public void onResponse JSONObject response                   Some code                    new Response ErrorListener              Override         public void onErrorResponse VolleyError error                  handle errors

User · Answer

I had the same issue once  the empty POST array is caused due a redirection of the request  on your server side   fix the URL so it doesn t have to be redirected when it hits the server  For Example  if https is forced using the  htaccess file on your server side app  make sure your client request has the  https     prefix  Usually when a redirect happens the POST array is lost  I Hope this helps

User · Answer

try to use this helper class      import java io UnsupportedEncodingException  import java util Map      import org json JSONException  import org json JSONObject      import com android volley NetworkResponse  import com android volley ParseError  import com android volley Request  import com android volley Response  import com android volley Response ErrorListener  import com android volley Response Listener  import com android volley toolbox HttpHeaderParser   public class CustomRequest extends Request lt JSONObject gt         private Listener lt JSONObject gt  listener      private Map lt String  String gt  params       public CustomRequest String url  Map lt String  String gt  params              Listener lt JSONObject gt  reponseListener  ErrorListener errorListener            super Method GET  url  errorListener           this listener   reponseListener          this params   params             public CustomRequest int method  String url  Map lt String  String gt  params              Listener lt JSONObject gt  reponseListener  ErrorListener errorListener            super method  url  errorListener           this listener   reponseListener          this params   params             protected Map lt String  String gt  getParams               throws com android volley AuthFailureError           return params               Override     protected Response lt JSONObject gt  parseNetworkResponse NetworkResponse response            try               String jsonString   new String response data                      HttpHeaderParser parseCharset response headers                return Response success new JSONObject jsonString                       HttpHeaderParser parseCacheHeaders response              catch  UnsupportedEncodingException e                return Response error new ParseError e              catch  JSONException je                return Response error new ParseError je                          Override     protected void deliverResponse JSONObject response               TODO Auto-generated method stub         listener onResponse response             In activity fragment do use  this  RequestQueue requestQueue   Volley newRequestQueue getActivity     CustomRequest jsObjRequest   new CustomRequest Method POST  url  params  this createRequestSuccessListener    this createRequestErrorListener      requestQueue add jsObjRequest

User · Answer

Easy one for me   I got it few weeks ago    This goes in getBody   method  not in getParams   for a post request    Here is mine          Override        Returns the raw POST or PUT body to be sent         throws AuthFailureError in the event of auth failure     public byte   getBody   throws AuthFailureError                 Map lt String  String gt  params   getParams        Map lt String  String gt  params   new HashMap lt String  String gt         params put  id   1        params put  name    myname        if  params    null  amp  amp  params size    gt  0            return encodeParameters params  getParamsEncoding               return null        I assumed you want to POST the params you wrote in your getParams   I gave the params to the request inside the constructor  but since you are creating the request on the fly  you can hard coded them inside your override of the  getBody   method    This is what my code looks like         Bundle param   new Bundle        param putString HttpUtils HTTP CALL TAG KEY  tag       param putString HttpUtils HTTP CALL PATH KEY  url       param putString HttpUtils HTTP CALL PARAM KEY  params        switch  type        case RequestType POST          param putInt HttpUtils HTTP CALL TYPE KEY  RequestType POST           SCMainActivity mRequestQueue add new SCRequestPOST Method POST  url  this  tag  receiver  params      and if you want even more this last string params comes from     param   JsonUtils XWWWUrlEncoder encode new JSONObject paramasJObj   toString      and the paramasJObj is something like this      id   1   name   myname   the usual JSON string

User · Answer

It worked for can  try this for calling with Volley Json Request and Response ith Java Code    public void callLogin String sMethodToCall  String sUserId  String sPass            RequestQueue requestQueue   Volley newRequestQueue getApplicationContext              JsonObjectRequest jsonObjectRequest   new JsonObjectRequest                  Request Method POST  ConstantValues ROOT URL LOCAL   sMethodToCall toString   trim    addJsonParams sUserId  sPass                     JsonObjectRequest jsonObjectRequest   new JsonObjectRequest Request Method POST  url  object                  new Response Listener lt JSONObject gt                           Override                     public void onResponse JSONObject response                            Log d  onResponse   response toString                             Toast makeText VolleyMethods this  response toString    Toast LENGTH LONG  show       Test                          parseResponse response                             msgResponse setText response toString                               hideProgressDialog                                                             new Response ErrorListener                           Override                     public void onErrorResponse VolleyError error                            VolleyLog d  onErrorResponse    Error      error getMessage                             Toast makeText VolleyMethods this  error toString    Toast LENGTH LONG  show                      hideProgressDialog                                                                               Passing some request headers                              Override             public Map lt String  String gt  getHeaders   throws AuthFailureError                   HashMap lt String  String gt  headers   new HashMap lt String  String gt                     headers put  Content-Type    application json  charset utf-8                    return headers                                      requestQueue add jsonObjectRequest              public JSONObject addJsonParams String sUserId  String sPass            JSONObject jsonobject   new JSONObject            try                   id    login   secretary   password   password                                     Log d  addJsonParams    addJsonParams                   JSONObject jsonobject   new JSONObject                   JSONObject jsonobject one   new JSONObject                     jsonobject one put  type    event and offer                  jsonobject one put  devicetype    I                     JSONObject jsonobject TWO   new JSONObject                  jsonobject TWO put  value    event                  JSONObject jsonobject   new JSONObject                     jsonobject put  requestinfo   jsonobject TWO                 jsonobject put  request   jsonobject one                jsonobject put  id                    jsonobject put  login   sUserId      sUserId             jsonobject put  password   sPass      sPass                 js put  data   jsonobject toString                catch  JSONException e                e printStackTrace                       return jsonobject             public void parseResponse JSONObject response             Boolean bIsSuccess   false     Write according to your logic this is demo          try               JSONObject jObject   new JSONObject String valueOf response                bIsSuccess   jObject getBoolean  success                catch  JSONException e                e printStackTrace                Toast makeText VolleyMethods this       e toString    Toast LENGTH LONG  show       Test

User · Answer

build gradle app  dependencies       implementation fileTree dir   quot libs quot   include    quot   jar quot        implementation  quot org jetbrains kotlin kotlin-stdlib  kotlin version quot      implementation  androidx core core-ktx 1 1 0      implementation  androidx appcompat appcompat 1 1 0-alpha01      implementation  androidx constraintlayout constraintlayout 1 1 3      testImplementation  junit junit 4 12      androidTestImplementation  androidx test ext junit 1 1 1      androidTestImplementation  androidx test espresso espresso-core 3 2 0      implementation  com android volley volley 1 1 1      android manifest  lt uses-permission android name  quot android permission INTERNET quot    gt   lt uses-permission android name  quot android permission ACCESS NETWORK STATE quot    gt    MainActivity When you use JsonObjectRequest it is mandatory to send a jsonobject and receive jsonobject otherwise you will get an error as it only accepts jsonobject  import com android volley Request import com android volley Response import com android volley toolbox JsonObjectRequest import com android volley toolbox Volley  fun peticion        val jsonObject   JSONObject       jsonObject put  quot user quot    quot jairo quot       jsonObject put  quot password quot    quot 1234 quot       val queue   Volley newRequestQueue this      val url    quot http   192 168 0 3 get user php quot         GET  JsonObjectRequest  url  null         POST  JsonObjectRequest  url  jsonObject      val jsonObjectRequest   JsonObjectRequest  url  jsonObject          Response Listener   response - gt                 Check if the object  msm  does not exist             if response isNull  quot msm quot                     println  quot Name   quot  response getString  quot nombre1 quot                              else                     If the object  msm  exists we print it                 println  quot msm   quot  response getString  quot msm quot                                     Response ErrorListener   error - gt              error printStackTrace               println error toString                        queue add jsonObjectRequest      file php get user php  lt  php     header  quot Access-Control-Allow-Origin    quot        header  quot Access-Control-Allow-Headers    quot           we receive the parameters      json   file get contents  php   input         params   json decode  json       error reporting 0       require once  conexion php         mysqli getConex         user  params- gt user       password  params- gt password       res array         verifica usuario mysqli query  mysqli  quot SELECT   FROM usuarios WHERE usuario   user  and clave   password  quot        if mysqli num rows  verifica usuario  gt 0            query  quot SELECT   FROM usuarios WHERE usuario   user  quot            result  mysqli- gt query  query           while  row    result- gt fetch array MYSQLI ASSOC                 res  row                      else           res array  msm   gt  quot Incorrect user or password quot               jsonstring   json encode  res       header  Content-Type  application json        echo  jsonstring    gt    file php conexion  lt  php     function getConex             servidor  quot localhost quot            usuario  quot root quot            pass  quot  quot              base  quot db quot                     mysqli   mysqli connect  servidor  usuario  pass  base           if  mysqli connect errno  mysqli                echo  quot Fallo al conectar a MySQL   quot    mysqli connect error                       mysqli- gt set charset  utf8            return  mysqli          gt

User · Answer

You can create a custom JSONObjectReuqest and override the getParams method  or you can provide them in the constructor as a JSONObject to be put in the body of the request   Like this  I edited your code    JSONObject obj   new JSONObject    obj put  id    1    obj put  name    myname     RequestQueue queue   MyVolley getRequestQueue    JsonObjectRequest jsObjRequest   new JsonObjectRequest Request Method POST SPHERE URL obj      new Response Listener lt JSONObject gt               Override         public void onResponse JSONObject response                 System out println response                hideProgressDialog                         new Response ErrorListener              Override         public void onErrorResponse VolleyError error                 hideProgressDialog                      queue add jsObjRequest

User · Answer

All you need to do is to override getParams method in Request class  I had the same problem and I searched through the answers but I could not find a proper one  The problem is unlike get request   post parameters being redirected by the servers may be dropped  For instance  read this  So  don t risk your requests to be redirected by webserver  If you are targeting http   example myapp   then mention the exact address of your service  that is http   example com myapp index php  Volley is OK and works perfectly  the problem stems from somewhere else

[android] Volley JsonObjectRequest Post request not working

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