dont ommit empty json lists

server/ctrlsubsonic/handlers_common.go

@@ -1,6 +1,7 @@
 package ctrlsubsonic
 
 import (
+	"fmt"
 	"log"
 	"net/http"
 	"sort"
@@ -130,6 +131,7 @@ func (c *Controller) ServeGetPlaylists(r *http.Request) *spec.Response {
 	sub.Playlists = &spec.Playlists{
 		List: make([]*spec.Playlist, len(playlists)),
 	}
+	fmt.Println("aaaa")
 	for i, playlist := range playlists {
 		sub.Playlists.List[i] = spec.NewPlaylist(playlist)
 		sub.Playlists.List[i].Owner = user.Name

server/ctrlsubsonic/handlers_unimplemented.go

@@ -12,5 +12,6 @@ import (
 func (c *Controller) ServeGetGenres(r *http.Request) *spec.Response {
 	sub := spec.NewResponse()
 	sub.Genres = &spec.Genres{}
+	sub.Genres.List = []*spec.Genre{}
 	return sub
 }

server/ctrlsubsonic/spec/spec.go

@@ -83,7 +83,7 @@ func NewError(code int, message string, a ...interface{}) *Response {
 }
 
 type Albums struct {
-	List []*Album `xml:"album" json:"album,omitempty"`
+	List []*Album `xml:"album" json:"album"`
 }
 
 type Album struct {
@@ -134,7 +134,7 @@ type TrackChild struct {
 }
 
 type Artists struct {
-	List []*Index `xml:"index,omitempty" json:"index,omitempty"`
+	List []*Index `xml:"index,omitempty" json:"index"`
 }
 
 type Artist struct {
@@ -212,7 +212,7 @@ type User struct {
 }
 
 type Playlists struct {
-	List []*Playlist `xml:"playlist" json:"playlist,omitempty"`
+	List []*Playlist `xml:"playlist" json:"playlist"`
 }
 
 type Playlist struct {
@@ -243,15 +243,15 @@ type ArtistInfo struct {
 	SimilarArtist  []*SimilarArtist `xml:"similarArtist,omitempty" json:"similarArtist,omitempty"`
 }
 
+type Genres struct {
+	List []*Genre `xml:"genre" json:"genre"`
+}
+
 type Genre struct {
 	SongCount  string `xml:"songCount,attr"`
 	AlbumCount string `xml:"albumCount,attr"`
 }
 
-type Genres struct {
-	Genre []*Genres `xml:"genre" json:"genre"`
-}
-
 type PlayQueue struct {
 	Current   int           `xml:"current,attr,omitempty"  json:"current,omitempty"`
 	Position  int           `xml:"position,attr,omitempty" json:"position,omitempty"`