From 5e892ee5ae7f879f2b8bfc2b4c863ab2f6c94cbe Mon Sep 17 00:00:00 2001
From: "R.I.Pienaar" <rip@devco.net>
Date: Thu, 16 Jul 2020 12:17:07 +0200
Subject: [PATCH] add a helper to determine if headers is supported

functions like Publish will return an error when headers
are not supported, users who wish to support old and new
servers will need a way to find out if they can use headers
without parsing errors each time

Signed-off-by: R.I.Pienaar <rip@devco.net>
---
 nats.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/nats.go b/nats.go
index 255fcda7c..6c2bfdb09 100644
--- a/nats.go
+++ b/nats.go
@@ -4303,6 +4303,13 @@ func (nc *Conn) MaxPayload() int64 {
 	return nc.info.MaxPayload
 }
 
+// HeadersSupported will return if the server supports headers
+func (nc *Conn) HeadersSupported() bool {
+	nc.mu.RLock()
+	defer nc.mu.RUnlock()
+	return nc.info.Headers
+}
+
 // AuthRequired will return if the connected server requires authorization.
 func (nc *Conn) AuthRequired() bool {
 	nc.mu.RLock()