try this to get you started
/ Merchant Validation
session.onvalidatemerchant = function (event) {
console.log(event);
var promise = performValidation(event.validationURL);
promise.then(function (merchantSession) {
session.completeMerchantValidation(merchantSession);
}); }
and
function performValidation(valURL) {
return new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.onload = function() {
var data = JSON.parse(this.responseText);
resolve(data);
};
xhr.onerror = reject;
xhr.open('GET', 'apple_pay_do.php?u=' + valURL);
xhr.send();
});
}
and in apple_pay_do.php
$validation_url = $_GET['u'];
//NB check $validation_url is apple.com
// create a new cURL resource
$ch = curl_init();
$data = '{"merchantIdentifier":"merchant.com.blah.shop", "domainName":"shop.blah.com", "displayName":"Blah Shop"}';
curl_setopt($ch, CURLOPT_URL, $validation_url);
curl_setopt($ch, CURLOPT_SSLCERT, PRODUCTION_CERTIFICATE_PATH);
curl_setopt($ch, CURLOPT_SSLKEY, PRODUCTION_CERTIFICATE_KEY);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
if(curl_exec($ch) === false)
{
echo 'Curl error: ' . curl_error($ch);
}
// close cURL resource, and free up system resources
curl_close($ch);
This has got me as far as getting the merchant session identifier and nonce back from apple, and a successful "Pay with touch id" section in the applepay sheet in mobile safari.
