added slackjob class

src/Jobs/SlackJob.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Razorpay\Slack\Jobs;
+
+use Razorpay\Slack\Client;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Bus\Queueable;
+//use Illuminate\Contracts\Bus\SelfHandling;
+
+class SlackJob implements ShouldQueue
+{
+    use InteractsWithQueue, SerializesModels, Queueable;
+
+    protected $payload;
+
+    const MAX_RETRY_ATTEMPTS = 10;
+
+    const RELEASE_WAIT_TIMEOUT = 120;
+
+    public function __construct(array $data)
+    {
+        $this->payload = $payload;
+    }
+    /**
+     * Execute the job.
+     *
+     * @return void
+     */
+    public function handle()
+    {
+        if ($this->attempts() >= self::MAX_RETRY_ATTEMPTS)
+        {
+            $this->delete();
+        }
+        else
+        {
+            try
+            {
+                $app = App::getFacadeRoot();
+
+                $app['slack']->sendPayload($this->payload);
+
+                $this->delete();
+            }
+            catch (\Throwable $e)
+            {
+                $this->release(self::RELEASE_WAIT_TIMEOUT);
+            }
+        }
+    }
+}