From df156ab37be865f4dd8dfd781ac21a8efd4378dc Mon Sep 17 00:00:00 2001
From: flaviostutz <flaviostutz@gmail.com>
Date: Sun, 12 Aug 2018 08:18:46 -0300
Subject: [PATCH] adding 'json:omitempty' on optional Volume fields to avoid
 errors with Docker Daemon

---
 volume/api.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/volume/api.go b/volume/api.go
index c51c676..8b6e876 100644
--- a/volume/api.go
+++ b/volume/api.go
@@ -83,9 +83,9 @@ type CapabilitiesResponse struct {
 // Volume represents a volume object for use with `Get` and `List` requests
 type Volume struct {
 	Name       string
-	Mountpoint string
-	CreatedAt  string
-	Status     map[string]interface{}
+	Mountpoint string `json:",omitempty"`
+	CreatedAt  string `json:",omitempty"`
+	Status     map[string]interface{} `json:",omitempty"`
 }
 
 // Capability represents the list of capabilities a volume driver can return