From cdf482835f898866163dd305ac77b0a4b4fbf834 Mon Sep 17 00:00:00 2001
From: amirhnajafiz <najafizadeh21@gmail.com>
Date: Thu, 11 Aug 2022 20:01:08 +0430
Subject: [PATCH] feat: topic check before executing handle

---
 internal/client.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/client.go b/internal/client.go
index 65b33a3..ea2b731 100644
--- a/internal/client.go
+++ b/internal/client.go
@@ -85,7 +85,9 @@ func (c *client) listen() {
 
 // handle will execute the topic handler method.
 func (c *client) handle(m message) {
-	c.topics[m.Topic](m.Data)
+	if handler, ok := c.topics[m.Topic]; ok {
+		handler(m.Data)
+	}
 }
 
 // close will terminate everything.