Problem with volley POST and response null from the server (Kotlin) - kotlin

Question

I got a problem with my Volley POST in kotlin :
When I use this following code, my application go on "Response.Listener", but the array is null, so when I try to display the information I've just send, I can only get "null".
May you guys help me? :)
There is the kotlin code :
private fun sendHtmlRequest(view: View){
val emailreq = view?.findViewById<EditText>(R.id.editText_email)
val pwdreq = view?.findViewById<EditText>(R.id.editText_password)
val email = emailreq.text.toString()
val pwd = pwdreq.text.toString()
val jsonobj = JSONObject()
var url = "https://www.dorian-roulet.com/testStage-master/mobileApp/testpostone.php"
jsonobj.put("mail", email)
jsonobj.put("pwd", pwd)
val que = Volley.newRequestQueue(context)
val req = JsonObjectRequest(Request.Method.POST, url, jsonobj,
Response.Listener { response ->
view.findViewById<TextView>(R.id.error_login)?.text = ("Ca marche $response $jsonobj")
println("Yessai")
}, Response.ErrorListener{
view.findViewById<TextView>(R.id.error_login)?.text = ("Ca marche pas mec $jsonobj")
println("Erreur")
}
)
que.add(req)
}
Now, there is the PHP code :
<?php
$reponse = array("mail" => $_POST["mail"], "pwd" => $_POST["pwd"]);
echo json_encode($reponse);
?>
I tried to use a GET to recieve this data from a GET array, but the problem still being...
And when I go on my server's logs, I cans ee that I have a POST request from my application (even if I can't see what's in the request).
I use this code to do a Login task, but atm, I just want to send a post request from my application.
Please help :)

Answer 1

EDIT: Your PHP code is NOT fine.
To get JSON data you should not use $_POST (even if it was send with post). Use this instead:
<?php
$data = json_decode(file_get_contents('php://input'), true);
$reponse = array("mail" => $data["mail"], "pwd" => $data["pwd"]);
echo json_encode($reponse);
?>
Here is a code that work for volley (it's not too different than what you have :-) ):
val jsonObjectRequest: JsonObjectRequest = object : JsonObjectRequest(Method.POST, url, **jsonobj**, Response.Listener { response: JSONObject ->
try {
val email = response.getString("email")
val password = response.getString("password")
} catch (e: JSONException) {
// catch/handle JSON error
} catch (e: Exception) {
// catch/handle other error
}
}, Response.ErrorListener { error: VolleyError ->
//Error Listener code
}) {
override fun getBodyContentType(): String {
return "application/x-www-form-urlencoded"
}
// you can override more functions here if needed (getHeader, etc.)
}
queue.add(jsonObjectRequest)
For your case it would likely give:
private fun sendHtmlRequest(view: View){
val emailreq = view?.findViewById<EditText>(R.id.editText_email)
val pwdreq = view?.findViewById<EditText>(R.id.editText_password)
val email = emailreq.text.toString()
val pwd = pwdreq.text.toString()
val jsonobj = JSONObject()
var url = "https://www.dorian-roulet.com/testStage-master/mobileApp/testpostone.php"
jsonobj.put("mail", email)
jsonobj.put("pwd", pwd)
val que = Volley.newRequestQueue(context)
val req = JsonObjectRequest(Request.Method.POST, url, jsonobj,
Response.Listener { response: JSONObject ->
val mailBack = response.getString("mail")
val pwdBack = response.getString("pwd")
view.findViewById<TextView>(R.id.error_login)?.text = ("Ca marche $response $mailBack - $pwdBack")
println("Yessai")
}, Response.ErrorListener{
view.findViewById<TextView>(R.id.error_login)?.text = ("Ca marche pas mec $jsonobj")
println("Erreur")
}
)
que.add(req)
}

Answer 2

There is the code I have after you send me what code I have to put inside :
(Still returns null values)
private fun sendHtmlRequest(view: View){
val emailreq = view?.findViewById<EditText>(R.id.editText_email)
val pwdreq = view?.findViewById<EditText>(R.id.editText_password)
val email = emailreq.text.toString()
val pwd = pwdreq.text.toString()
val jsonobj = JSONObject()
var url = "https://www.dorian-roulet.com/testStage-master/mobileApp/testpostone.php"
jsonobj.put("mail", email)
jsonobj.put("pwd", pwd)
val que = Volley.newRequestQueue(context)
val jsonObjectRequest = JsonObjectRequest(
Request.Method.POST, url, jsonobj,
Response.Listener { response: JSONObject ->
val emails = response.getString("mail")
val passwords = response.getString("pwd")
view.findViewById<TextView>(R.id.error_login)?.text = ("Ca marche $emails $passwords $response $jsonobj")
}, Response.ErrorListener {
view.findViewById<TextView>(R.id.error_login)?.text = ("Ca marche pas mec $jsonobj")
println("Erreur")
}) /*{
override fun getBodyContentType(): String {
return "application/x-www-form-urlencoded"
}
// you can override more functions here if needed (getHeader, etc.)
}*/
que.add(jsonObjectRequest)
}