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YandexMusic.API/Requests/Artist/YGetArtistBuilder.cs

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+using System.Net;
+
+using YandexMusic.API.Common;
+using YandexMusic.API.Models.Artist;
+using YandexMusic.API.Models.Common;
+using YandexMusic.API.Requests.Common;
+using YandexMusic.API.Requests.Common.Attributes;
+
+namespace YandexMusic.API.Requests.Artist
+{
+    [YApiRequest(WebRequestMethods.Http.Get, "artists/{artistId}/brief-info")]
+    public class YGetArtistBuilder : YRequestBuilder<YResponse<YArtistBriefInfo>, string>
+    {
+        public YGetArtistBuilder(YandexMusicApi yandex, AuthStorage auth) : base(yandex, auth)
+        {
+        }
+
+        protected override Dictionary<string, string> GetSubstitutions(string artistId)
+        {
+            return new Dictionary<string, string> {
+                { "artistId", artistId }
+            };
+        }
+    }
+}

YandexMusic.API/Requests/Artist/YGetArtistTrackBuilder.cs

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+using System.Collections.Specialized;
+using System.Net;
+
+using YandexMusic.API.Common;
+using YandexMusic.API.Models.Artist;
+using YandexMusic.API.Models.Common;
+using YandexMusic.API.Requests.Common;
+using YandexMusic.API.Requests.Common.Attributes;
+
+namespace YandexMusic.API.Requests.Artist
+{
+    [YApiRequest(WebRequestMethods.Http.Get, "artists/{artistId}/tracks")]
+    public class YGetArtistTrackBuilder : YRequestBuilder<YResponse<YTracksPage>, (string id, int page, int pageSize)>
+    {
+        public YGetArtistTrackBuilder(YandexMusicApi yandex, AuthStorage auth) : base(yandex, auth) { }
+
+        protected override Dictionary<string, string> GetSubstitutions((string id, int page, int pageSize) tuple)
+        {
+            return new Dictionary<string, string> {
+                { "artistId", tuple.id },
+            };
+        }
+
+        protected override NameValueCollection GetQueryParams((string id, int page, int pageSize) tuple)
+        {
+            return new NameValueCollection {
+                { "page", tuple.page.ToString() },
+                { "pageSize", tuple.pageSize.ToString() },
+            };
+        }
+    }
+}

YandexMusic.API/Requests/Artist/YGetArtistsBuilder.cs

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+using System.Net;
+
+using YandexMusic.API.Common;
+using YandexMusic.API.Models.Artist;
+using YandexMusic.API.Models.Common;
+using YandexMusic.API.Requests.Common;
+using YandexMusic.API.Requests.Common.Attributes;
+
+namespace YandexMusic.API.Requests.Artist
+{
+    [YApiRequest(WebRequestMethods.Http.Post, "artists")]
+    public class YGetArtistsBuilder : YRequestBuilder<YResponse<List<YArtist>>, IEnumerable<string>>
+    {
+        public YGetArtistsBuilder(YandexMusicApi yandex, AuthStorage auth) : base(yandex, auth)
+        {
+        }
+
+        protected override HttpContent GetContent(IEnumerable<string> artistIds)
+        {
+            return new FormUrlEncodedContent(new Dictionary<string, string> {
+                { "artist-Ids", string.Join(",", artistIds) }
+            });
+        }
+    }
+}