From 13cdeb9397b7caadc19914af2b197fb8abf43aaf Mon Sep 17 00:00:00 2001
From: Vasiliy Tolstov <v.tolstov@unistack.org>
Date: Mon, 14 Aug 2023 13:44:57 +0300
Subject: [PATCH] fix swagger handler

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
---
 handler/swagger/swagger.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/handler/swagger/swagger.go b/handler/swagger/swagger.go
index b1d680c..bc59bd6 100644
--- a/handler/swagger/swagger.go
+++ b/handler/swagger/swagger.go
@@ -29,6 +29,12 @@ var Handler = func(dst map[string]interface{}, fsys fs.FS) http.HandlerFunc {
 			return
 		}
 
+		if dst == nil {
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write(buf)
+			return
+		}
+
 		var src interface{}
 
 		if err = c.Unmarshal(buf, src); err != nil {