Volley String post request from a curl command - android-volley

Question

I am trying get access-token. By using curl/commnad window i can get it but i need to use android volley. Volley shows error says unexpected response code. Here is curl command:
$ curl "https://api.*****.com/auth/oauth/v2/token" \
--insecure \
--header "Accept: application/json" \
--header "Content-Type: application/x-www-form-urlencoded" \
--data "grant_type=authorization_code&code=9d40008a9a4-438b-800c-dec6486a7631"\
--data
“client_id=l7xxdedc2c3d49e58459287fe66092ad&client_secret=fa48a352e633841695b1d969750" \
--data "scope=scope_test&state=state_test" \
--data "redirect_uri=http%3A%2F%2Flocalhost%3A3000" \
--request POST$
I have written an equivalent Volley string request. I dont know where is my mistake? Why it is not giving me the response. Please help me
StringRequest postRequest=new StringRequest(Request.Method.POST,url,new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("accessToken:",response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
Log.d("error:",volleyError.toString());
}
}){
#Override
public byte[] getPostBody() throws AuthFailureError {
String grantcode=preference.getAccessToken();
String httpPostBody="grant_type=authorization_code&code="+grantcode+"&client_id=l7xx5a227281eb364ab3bb6fd8cc49648427&client_secret=c29a24fad90640f993770f07a5e77892&scope=scope_test&state=state_test";
return httpPostBody.getBytes();
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> headers=new HashMap<String,String>();
headers.put("Accept","application/json");
headers.put("Content-Type","application/x-www-form-urlencoded");
return headers;
}
};
ApplicationController.getInstance().addToRequestQueue(postRequest);
}
});
Even i tried to use getBody instead of getPostBody. But it did not solve my problem. thanks again

Answer 1

I solved this problem. Here is the way:
StringRequest postRequest=new StringRequest(Request.Method.POST,url,new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("accessToken:",response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
Log.d("error:",volleyError.toString());
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params=new HashMap<String,String>();
params.put("grant_type","authorization_code");
params.put("code",preference.getGrantCode());
params.put("client_id", Resources.CLIENT_ID);
params.put("client_secret",Resources.CLIENT_SECRET);
params.put("scope","scope_test");
params.put("state","state_test");
params.put("redirect_uri",Resources.REDIRECT_URI );
return params;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> headers=new HashMap<String,String>();
headers.put("Accept","application/json");
headers.put("Content-Type","application/x-www-form-urlencoded");
return headers;
}
};
ApplicationController.getInstance().addToRequestQueue(postRequest);

Answer 2

I ran into similar issue.
Putting --data values in to body solved for me.