Retrieve Data from Custom Endpoint

Question

i created a custom webhook endpoint to receive data from moosend. The idea is to get the email address of a new subscriber and create a new customized coupon in woocommerce. I created an automation on moosend which triggers the webhook successfully. The coupon is created but i cant figure out how to get the email address of the new subscriber from the data which is being sent. As far as I understand, the data is being sent via this schema:

http://cdn.stat-track.com/send-to-webhook-context-schema.js

This is my approach so far (i tried different methods but none has worked )

    add_action('rest_api_init', function () {
  register_rest_route('webhook', 'newMoosendSubscriber', array(
    'methods' => ['POST'],
    'callback' => 'createDiscountCouponForNewSubscriberME',
  ));
});

/**GENERATE COUPON */

function createDiscountCouponForNewSubscriberME(WP_REST_Request $request)
{
  // create coupon
  $email = $request["properties"]["Event"]["ContactContext"]["properties"]["EmailAddress"];

  $coupon_code = 'welcome-' . $email;
  $amount = '10'; // Amount
  $discount_type = 'percent'; // Type: fixed_cart, percent, fixed_product, percent_product

  $coupon = array(
    'post_title' => $coupon_code,
    'post_content' => '',
    'post_status' => 'publish',
    'post_author' => 1,
    'post_type' => 'shop_coupon'
  );

  $new_coupon_id = wp_insert_post($coupon);
  //$exclude_products = array('61707', '61688', '61684', '61679', '61399');

  // Add meta
  update_post_meta($new_coupon_id, 'discount_type', $discount_type);
  update_post_meta($new_coupon_id, 'coupon_amount', $amount);
  update_post_meta($new_coupon_id, 'individual_use', 'yes');
  update_post_meta($new_coupon_id, 'product_ids', '');
  update_post_meta($new_coupon_id, 'exclude_product_ids', '61707, 61688, 61684, 61679, 61399');
  update_post_meta($new_coupon_id, 'usage_limit', '1');
  update_post_meta($new_coupon_id, 'expiry_date', '');
  update_post_meta($new_coupon_id, 'apply_before_tax', 'yes');
  update_post_meta($new_coupon_id, 'free_shipping', 'no');

  return "ok";
}

EDIT: I found the solution myself: to create a php array out of the json body of the http request, the function get_json_params() is the answer. To read the emailaddress from this array i had to use this:

  $requestArr = $request->get_json_params();
  $emailAddress = $request["Event"]["ContactContext"]["EmailAddress"];

Answer 1

As you said "Coupon is created in WooCommerce end", we can confirm that custom endpoint "webhook" is working finely.

The issue is regrading to retrieve Email Address from the response. The moosend schema body is consist of JSON Object. So you have to decode the response to array first.

Try to change your code as following code. It will convert JSON Objects into PHP Array and then retrieve Email Address from the Array

$requestArr = json_decode($request, true);
$email = $requestArr["properties"]["Event"]["ContactContext"]["properties"]["EmailAddress"];