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YandexMusic.API/Requests/Ugc/YUgcUploadBuilder.cs

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+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.Ugc
+{
+    [YRequest(WebRequestMethods.Http.Post, "{postTargetLink}")]
+    public class YUgcUploadBuilder : YRequestBuilder<YResponse<string>, (string postTargetLink, byte[] fileBytes)>
+    {
+        public YUgcUploadBuilder(YandexMusicApi yandex, AuthStorage auth) : base(yandex, auth)
+        {
+        }
+
+        protected override Dictionary<string, string> GetSubstitutions((string postTargetLink, byte[] fileBytes) tuple)
+        {
+            return new Dictionary<string, string> {
+                { "postTargetLink", tuple.postTargetLink }
+            };
+        }
+
+        protected override HttpContent GetContent((string postTargetLink, byte[] fileBytes) tuple)
+        {
+            return new MultipartFormDataContent {
+                { new ByteArrayContent(tuple.fileBytes), "file" }
+            };
+        }
+
+    }
+}