Make brokers optional on publishOn and createConsumer methods. If not…

… informed, the config default will be used.

src/Kafka.php

@@ -12,30 +12,30 @@ class Kafka implements CanPublishMessagesToKafka
     /**
      * Creates a new ProducerBuilder instance, setting brokers and topic.
      *
-     * @param string $broker
+     * @param string|null $broker
      * @param string $topic
      * @return CanProduceMessages
      */
-    public function publishOn(string $broker, string $topic): CanProduceMessages
+    public function publishOn(string $topic, string $broker = null): CanProduceMessages
     {
         return new ProducerBuilder(
-            broker: $broker,
-            topic: $topic
+            topic: $topic,
+            broker: $broker ?? config('kafka.brokers')
         );
     }
 
     /**
      * Return a ConsumerBuilder instance.
      *
-     * @param string $brokers
      * @param array $topics
      * @param string|null $groupId
+     * @param string|null $brokers
      * @return \Junges\Kafka\Consumers\ConsumerBuilder
      */
-    public function createConsumer(string $brokers, array $topics = [], string $groupId = null): ConsumerBuilder
+    public function createConsumer(array $topics = [], string $groupId = null, string $brokers = null): ConsumerBuilder
     {
         return ConsumerBuilder::create(
-            brokers: $brokers,
+            brokers: $brokers ?? config('kafka.brokers'),
             topics: $topics,
             groupId: $groupId
         );