From 6656c39bd91d3cd3a5300f9fc7a359b68bca2e45 Mon Sep 17 00:00:00 2001
From: Morb0 <exstrominer@gmail.com>
Date: Wed, 6 Jan 2021 22:35:01 +0300
Subject: [PATCH] fix(listeners-explorer): ignore empty callback return data

---
 lib/services/listeners-explorer.service.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/services/listeners-explorer.service.ts b/lib/services/listeners-explorer.service.ts
index ad9aade..5bfee9c 100644
--- a/lib/services/listeners-explorer.service.ts
+++ b/lib/services/listeners-explorer.service.ts
@@ -141,7 +141,9 @@ export class ListenersExplorerService
       ...args,
       async (ctx: Context, next: Function): Promise<void> => {
         const result = await listenerCallbackFn(ctx, next);
-        await ctx.reply(String(result));
+        if (result) {
+          await ctx.reply(String(result));
+        }
         // TODO-Possible-Feature: Add more supported return types
       },
     );