Parse mailgun webhook

parse_mailgun_webhook_stdin.php

<?php

function parse_mailgun_webhook_stdin(): array
{
	$raw = file_get_contents('php://input');
	$json = json_decode($raw, true);

	$order_id = $json['event-data']['user-variables']['order_id'] ?? $json['event-data']['user-variables']['order-id'] ?? null;
	$mail_id = $json['event-data']['user-variables']['mail_id'] ?? $json['event-data']['user-variables']['mail-id'] ?? null;
	$recipient = $json['event-data']['recipient'] ?? null;
	$event = $json['event-data']['event'] ?? null;
	$timestamp = date('c', $json['event-data']['timestamp'] ?? 0);

	return ['recipient' => $recipient, 'event' => $event,
		'order_id' => $order_id, 'mail_id' => $mail_id, 'timestamp' => $timestamp, 'raw' => $raw];
}