I want a list of a users characters. What am I doing wrong?

API Discussion
1

I just want a list of the users characters. It seams to be authenticating fine.

$code = $_GET['code'];

$curl_handle = curl_init();

$post = [

    'access_token' => $code

];

curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $post);

curl_setopt($curl_handle, CURLOPT_URL, "https://eu.api.blizzard.com/profile/user/wow/");

curl_setopt($curl_handle, CURLOPT_HTTPHEADER, ["Battlenet-Namespace: dynamic-eu"]);

curl_setopt($curl_handle, CURLOPT_HTTPHEADER, ["Accept: application/json"]);

$response = curl_exec($curl_handle);

print_r($response);

I just print a 1, nothing else.

2

I think we just talked over the API discord right ? If not please let me know.