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YandexMusic.API/Requests/Account/YGetMusicTokenBuilder.cs

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+using System.Net;
+using System.Net.Http.Headers;
+
+using YandexMusic.API.Common;
+using YandexMusic.API.Models.Account;
+using YandexMusic.API.Requests.Common;
+using YandexMusic.API.Requests.Common.Attributes;
+
+namespace YandexMusic.API.Requests.Account
+{
+    [YOAuthMobile(WebRequestMethods.Http.Post, "/1/token")]
+    internal class YGetMusicTokenBuilder : YRequestBuilder<YAccessToken, string>
+    {
+        public YGetMusicTokenBuilder(YandexMusicApi yandex, AuthStorage auth) : base(yandex, auth)
+        {
+        }
+
+        protected override HttpContent GetContent(string tuple)
+        {
+            return new FormUrlEncodedContent(new Dictionary<string, string>
+            {
+                { "client_id", YConstants.ClientId },
+                { "client_secret", YConstants.ClientSecret },
+                { "grant_type", "x-token" },
+                { "access_token", storage.AccessToken.AccessToken }
+            });
+        }
+
+        protected override void SetCustomHeaders(HttpRequestHeaders headers)
+        {
+            headers.Remove("Authorization");
+
+            base.SetCustomHeaders(headers);
+        }
+    }
+}