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YandexMusic.API/Requests/Common/Attributes/YApiRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YApiRequestAttribute : YBasePathRequestAttribute
+    {
+        public YApiRequestAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://api.music.yandex.net";
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YBasePathRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    /// <summary>
+    /// Атрибут запроса относительно базового адреса
+    /// </summary>
+    public class YBasePathRequestAttribute : YRequestAttribute
+    {
+        #region Поля
+
+        protected string basePath;
+
+        #endregion Поля
+
+        #region Свойства
+        public override string Url => GetFullUrl();
+
+        #endregion Свойства
+
+        #region Вспомогательные функции
+
+        private string GetFullUrl()
+        {
+            return $"{basePath.TrimEnd('/')}/{path.TrimStart('/')}";
+        }
+
+        #endregion Вспомогательные функции
+
+        public YBasePathRequestAttribute(string method, string url) : base(method, url)
+        {
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YLoginRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YLoginRequestAttribute : YBasePathRequestAttribute
+    {
+        public YLoginRequestAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://login.yandex.ru";
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YMobileProxyRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YMobileProxyRequestAttribute : YBasePathRequestAttribute
+    {
+        public YMobileProxyRequestAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://mobileproxy.passport.yandex.net";
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YOAuthMobileAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YOAuthMobileAttribute : YBasePathRequestAttribute
+    {
+        public YOAuthMobileAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://oauth.mobile.yandex.net";
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YOAuthRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YOAuthRequestAttribute : YBasePathRequestAttribute
+    {
+        public YOAuthRequestAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://oauth.yandex.ru";
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YPassportRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YPassportRequestAttribute : YBasePathRequestAttribute
+    {
+        public YPassportRequestAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://passport.yandex.ru";
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    /// <summary>
+    /// Атрибут запроса без привязки к базовому адресу
+    /// </summary>
+    public class YRequestAttribute : Attribute
+    {
+        #region Поля
+
+        protected string path;
+
+        #endregion Поля
+
+        #region Свойства
+
+        public string Method { get; }
+        public virtual string Url => path;
+
+        #endregion Свойства
+
+        public YRequestAttribute(string method, string url)
+        {
+            Method = method;
+            path = url;
+        }
+    }
+}

YandexMusic.API/Requests/Common/Attributes/YWebApiRequestAttribute.cs

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+namespace YandexMusic.API.Requests.Common.Attributes
+{
+    public class YWebApiRequestAttribute : YBasePathRequestAttribute
+    {
+        public YWebApiRequestAttribute(string method, string url) : base(method, url)
+        {
+            basePath = "https://music.yandex.ru";
+        }
+    }
+}