Updated Visit entity so that the short URL is nullable

module/Core/src/Entity/Visit.php

@@ -18,7 +18,7 @@ class Visit extends AbstractEntity implements JsonSerializable
     private Chronos $date;
     private ?string $remoteAddr = null;
     private string $userAgent;
-    private ShortUrl $shortUrl;
+    private ?ShortUrl $shortUrl;
     private ?VisitLocation $visitLocation = null;
 
     public function __construct(ShortUrl $shortUrl, Visitor $visitor, bool $anonymize = true, ?Chronos $date = null)
@@ -54,7 +54,7 @@ class Visit extends AbstractEntity implements JsonSerializable
         return ! empty($this->remoteAddr);
     }
 
-    public function getShortUrl(): ShortUrl
+    public function getShortUrl(): ?ShortUrl
     {
         return $this->shortUrl;
     }
@@ -75,13 +75,6 @@ class Visit extends AbstractEntity implements JsonSerializable
         return $this;
     }
 
-    /**
-     * Specify data which should be serialized to JSON
-     * @link http://php.net/manual/en/jsonserializable.jsonserialize.php
-     * @return array data which can be serialized by <b>json_encode</b>,
-     * which is a value of any type other than a resource.
-     * @since 5.4.0
-     */
     public function jsonSerialize(): array
     {
         return [

module/Core/src/EventDispatcher/NotifyVisitToWebHooks.php

@@ -10,6 +10,7 @@ use Fig\Http\Message\RequestMethodInterface;
 use GuzzleHttp\ClientInterface;
 use GuzzleHttp\Promise\Promise;
 use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Promise\Utils;
 use GuzzleHttp\RequestOptions;
 use Psr\Log\LoggerInterface;
 use Shlinkio\Shlink\Common\Rest\DataTransformerInterface;
@@ -20,7 +21,6 @@ use Throwable;
 
 use function Functional\map;
 use function Functional\partial_left;
-use function GuzzleHttp\Promise\settle;
 
 class NotifyVisitToWebHooks
 {
@@ -69,7 +69,7 @@ class NotifyVisitToWebHooks
         $requestPromises = $this->performRequests($requestOptions, $visitId);
 
         // Wait for all the promises to finish, ignoring rejections, as in those cases we only want to log the error.
-        settle($requestPromises)->wait();
+        Utils::settle($requestPromises)->wait();
     }
 
     private function buildRequestOptions(Visit $visit): array

module/Core/src/Mercure/MercureUpdatesGenerator.php

@@ -38,7 +38,7 @@ final class MercureUpdatesGenerator implements MercureUpdatesGeneratorInterface
         $topic = sprintf('%s/%s', self::NEW_VISIT_TOPIC, $shortUrl->getShortCode());
 
         return new Update($topic, $this->serialize([
-            'shortUrl' => $this->transformer->transform($visit->getShortUrl()),
+            'shortUrl' => $this->transformer->transform($shortUrl),
             'visit' => $visit,
         ]));
     }