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YandexMusic.API/Requests/Track/YTrackDownloadInfoBuilder.cs

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+using System.Collections.Specialized;
+using System.Net;
+
+using YandexMusic.API.Common;
+using YandexMusic.API.Models.Common;
+using YandexMusic.API.Requests.Common;
+using YandexMusic.API.Requests.Common.Attributes;
+
+namespace YandexMusic.API.Requests.Track
+{
+    [YApiRequest(WebRequestMethods.Http.Get, "tracks/{trackKey}/download-info")]
+    public class YTrackDownloadInfoBuilder : YRequestBuilder<YResponse<List<YTrackDownloadInfo>>, (string trackKey, bool direct)>
+    {
+        public YTrackDownloadInfoBuilder(YandexMusicApi yandex, AuthStorage auth) : base(yandex, auth)
+        {
+        }
+
+        protected override Dictionary<string, string> GetSubstitutions((string trackKey, bool direct) tuple)
+        {
+            return new Dictionary<string, string> {
+                { "trackKey", tuple.trackKey }
+            };
+        }
+
+        protected override NameValueCollection GetQueryParams((string trackKey, bool direct) tuple)
+        {
+            return new NameValueCollection {
+                { "direct", tuple.direct.ToString() }
+            };
+        }
+    }
+}