Broadcastable event shouldnt be a JsonSerializable everytime

README.md

@@ -33,8 +33,9 @@ return [
 
 ### 1. Creating regular events for publishing to a RabbitMQ
 
-Create an event that implements the `Broadcast` interface. `Broadcast` interface 
-extends `JsonSerializable` then your event should implements `jsonSerialize` method.
+Create an event that implements the `Broadcast` interface. 
+Your event should implements `JsonSerializable` interface if 
+default serializer is used.
 
 ```php
 namespace App\Events;
@@ -42,8 +43,9 @@ namespace App\Events;
 use Diffhead\PHP\LaravelRabbitMQ\Event\Broadcast;
 use Diffhead\PHP\LaravelRabbitMQ\Trait\BroadcastEvent;
 use Illuminate\Foundation\Events\Dispatchable;
+use JsonSerializable;
 
-class UserCreated implements Broadcast
+class UserCreated implements Broadcast, JsonSerializable
 {
     use Dispatchable, BroadcastEvent;
 

src/Event/Broadcast.php

@@ -4,9 +4,7 @@ declare(strict_types=1);
 
 namespace Diffhead\PHP\LaravelRabbitMQ\Event;
 
-use JsonSerializable;
-
-interface Broadcast extends JsonSerializable
+interface Broadcast
 {
     public function getConnection(): string;
     public function getQueue(): string;

src/Service/Serializer.php

@@ -11,16 +11,16 @@ use PhpAmqpLib\Message\AMQPMessage;
 
 class Serializer implements SerializerInterface
 {
-    public function serialize(object $data): AMQPMessage
+    public function serialize(object $event): AMQPMessage
     {
-        if ($data instanceof JsonSerializable) {
+        if ($event instanceof JsonSerializable) {
             return new AMQPMessage(
-                json_encode($data->jsonSerialize())
+                json_encode($event->jsonSerialize())
             );
         }
 
         throw new InvalidArgumentException(
-            'Data should be an instance of BroadcastEvent'
+            'Event should be an instance of JsonSerializable'
         );
     }
 }