Apple Wallet not giving Push Token to Web Service - php

Question

I have a Pass for Apple Wallet with a webServiceURL specified which I am currently trying to get working. So far, I can tell if the pass is added or deleted, after verifying with Auth Token and I get the correct Device ID as well as Serial Numbers. However, the value of $_POST is an empty array when the pass is added, so I cannot get the Push Token. Is there something I am missing? Here is my PHP.
<?php
function unauthorized() {
header('HTTP/1.1 401 Unauthorized');
exit;
}
$headers = apache_request_headers();
if (isset($headers['Authorization']) && strpos($headers['Authorization'], 'ApplePass') === 0 && strpos($_SERVER['PATH_INFO']) !== false) {
$pathInfo = $_SERVER['PATH_INFO'];
if ($pathInfo[0] === '/') { $pathInfo = substr($pathInfo, 1); }
$parameters = explode('/', $pathInfo);
if ($parameters[0] !== 'v1' || $parameters[1] !== 'devices' || $parameters[3] !== 'registrations' || $parameters[4] !== 'MYPASSIDENTIFIER') {
unauthorzed();
exit;
}
$deviceId = $parameters[2];
$passSerial = $parameters[5];
if ($_SERVER['REQUEST_METHOD'] === 'DELETE') {
// User deleted pass
} else if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// User added pass
$payload = json_decode($_POST);
// $_POST is empty array, and $payload is always nothing
} else {
// Something fishy
unauthorized();
}
} else {
unauthorized();
}

Answer 1

Try using the REQUEST_URI and read the body with php://inpupt
$headers = apache_request_headers();
$request = explode("/", substr(#$_SERVER['REQUEST_URI'], 1));
if (strtoupper($_SERVER['REQUEST_METHOD']) === "POST"
&& isset($headers['Authorization'])
&& (strpos($headers['Authorization'], 'ApplePass') === 0)
&& $request[1] === "devices"
&& ($request[3] === "registrations") {
$auth_key = str_replace(array('ApplePass '), '', $headers['Authorization']);
$device_id = $request[2];
$pass_id = $request[4];
$serial = $request[5];
$dt = #file_get_contents('php://input');
$det = json_decode($dt);
// Process Device Token