Add the ability to set or redefine attributes for messages in Rabbit. (#1724)

One of content_type, content_encoding, message_id, user_id, app_id, delivery_mode, priority, timestamp, expiration, type or reply_to, headers.

Co-authored-by: Попов Михаил <popov.mv@betcity.ru>

src/Monolog/Handler/AmqpHandler.php

@@ -27,6 +27,29 @@ class AmqpHandler extends AbstractProcessingHandler
      * @var AMQPExchange|AMQPChannel $exchange
      */
     protected $exchange;
+    /** @var array */
+    private $extraAttributes = [];
+
+    /**
+     * @return array
+     */
+    public function getExtraAttributes(): array
+    {
+        return $this->extraAttributes;
+    }
+
+    /**
+     * @param array   $extraAttributes  One of content_type, content_encoding,
+     *                                  message_id, user_id, app_id, delivery_mode,
+     *                                  priority, timestamp, expiration, type
+     *                                  or reply_to, headers.
+     * @return AmqpHandler
+     */
+    public function setExtraAttributes(array $extraAttributes): self
+    {
+        $this->extraAttributes = $extraAttributes;
+        return $this;
+    }
 
     /**
      * @var string
@@ -60,14 +83,18 @@ class AmqpHandler extends AbstractProcessingHandler
         $routingKey = $this->getRoutingKey($record);
 
         if ($this->exchange instanceof AMQPExchange) {
+            $attributes = [
+                'delivery_mode' => 2,
+                'content_type'  => 'application/json',
+            ];
+            if ($this->extraAttributes) {
+                $attributes = array_merge($attributes, $this->extraAttributes);
+            }
             $this->exchange->publish(
                 $data,
                 $routingKey,
                 0,
-                [
-                    'delivery_mode' => 2,
-                    'content_type' => 'application/json',
-                ]
+                $attributes
             );
         } else {
             $this->exchange->basic_publish(