PHP cURL RESTful request

Question

I have a RESTful server at server.pad.com/authenticate (locally) that takes one parameter and returns JSON. So in Laravel its authenticate/(:any)

I'm trying to get data from an ajax request and send it to the server and send back the response. Heres what I've tried...

<?php

  $json = json_decode($_POST['data'], true);
  $url = 'http://service.pad.com/authenticate';
  $curl = curl_init($url);
  $data = json_encode($json);

  curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($curl, CURLOPT_POST, true);
  curl_setopt($curl, CURLOPT_POSTFIELDS, $data);

  $response = curl_exec($curl);
  curl_close($curl);

  echo json_encode($response);
 ?>

Answer 1

Probably Content-Type: application/x-www-form-urlencoded issue.
Your $data is in JSON. You set value with CURLOPT_POSTFIELDS, but not var.
As I can see, $_POST['data'] is in JSON.
In the case the server gets single data in JSON try this:

$url = 'http://service.pad.com/authenticate';
$curl = curl_init($url);
$postdata = array( 'data' => $_POST['data'] );

curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($postdata) );

$response = curl_exec($curl);
curl_close($curl);

echo json_encode($response);

But if the server gets multiple vars, not JSON, try this:

$url = 'http://service.pad.com/authenticate';
$curl = curl_init($url);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, 
                   http_build_query( json_decode($_POST['data'], true) ) 
           );

$response = curl_exec($curl);
curl_close($curl);

echo json_encode($response);