From 346d3222d7f66a4e0315cfba148c6b5b4fe24e08 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20Mei=C3=9Fner?=
 <22190992+fnmeissner@users.noreply.github.com>
Date: Fri, 14 Jun 2019 14:19:38 +0200
Subject: [PATCH] Prevent sending empty body in OTC DNS Provider (#903)

---
 providers/dns/otc/client.go | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/providers/dns/otc/client.go b/providers/dns/otc/client.go
index 1cd71f55..fa4c5edc 100644
--- a/providers/dns/otc/client.go
+++ b/providers/dns/otc/client.go
@@ -230,12 +230,16 @@ func (d *DNSProvider) deleteRecordSet(zoneID, recordID string) error {
 func (d *DNSProvider) sendRequest(method, resource string, payload interface{}) (io.Reader, error) {
 	url := fmt.Sprintf("%s/%s", d.baseURL, resource)
 
-	body, err := json.Marshal(payload)
-	if err != nil {
-		return nil, err
+	var body io.Reader
+	if payload != nil {
+		content, err := json.Marshal(payload)
+		if err != nil {
+			return nil, err
+		}
+		body = bytes.NewReader(content)
 	}
 
-	req, err := http.NewRequest(method, url, bytes.NewReader(body))
+	req, err := http.NewRequest(method, url, body)
 	if err != nil {
 		return nil, err
 	}