Обнновлено до .net10
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FrigaT
@@ -3,156 +3,95 @@ using System.Net;
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using System.Net.Http.Headers;
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using System.Reflection;
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using System.Text;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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using System.Web;
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using YandexMusic.API.Common;
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using YandexMusic.API.Extensions;
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using YandexMusic.API.Requests.Common.Attributes;
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namespace YandexMusic.API.Requests.Common
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namespace YandexMusic.API.Requests.Common;
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/// <summary>Базовый строитель HTTP-запросов к API Яндекс.Музыки.</summary>
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/// <typeparam name="TResponse">Тип ответа.</typeparam>
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/// <typeparam name="TParams">Тип параметров запроса.</typeparam>
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public abstract class YRequestBuilder<TResponse, TParams>
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{
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public class YRequestBuilder<ResponseType, ParamsTuple>
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private readonly YRequestAttribute _requestInfo;
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private Dictionary<string, string> _substitutions = null!;
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private readonly JsonSerializerOptions _jsonOptions;
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protected readonly YandexMusicApi api;
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protected readonly AuthStorage storage;
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protected string device;
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protected YRequestBuilder(YandexMusicApi yandex, AuthStorage auth)
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{
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#region Поля
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_requestInfo = GetType().GetCustomAttribute<YRequestAttribute>()
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?? throw new NotImplementedException($"Отсутствует атрибут {nameof(YRequestAttribute)}");
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api = yandex;
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storage = auth;
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device = $"os=CSharp; os_version=; manufacturer=K1llM@n; model=Yandex Music API; clid=; device_id={storage.DeviceId}; uuid=random";
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private readonly JsonSerializerSettings jsonSettings = new()
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_jsonOptions = new JsonSerializerOptions
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{
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Converters = new List<JsonConverter> {
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new StringEnumConverter {
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NamingStrategy = new CamelCaseNamingStrategy()
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}
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},
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NullValueHandling = NullValueHandling.Ignore,
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ContractResolver = new CamelCasePropertyNamesContractResolver()
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PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
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DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
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Converters = { new JsonStringEnumConverter(JsonNamingPolicy.CamelCase) }
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};
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private YRequestAttribute requestInfo;
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private Dictionary<string, string> subs;
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protected YandexMusicApi api;
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protected AuthStorage storage;
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protected string device;
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#endregion Поля
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#region Свойства
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protected YandexMusicApi API => api;
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protected AuthStorage Storage => storage;
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#endregion Свойства
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#region Вспомогательные функции
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private Uri BuildUri(ParamsTuple tuple)
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{
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NameValueCollection queryParams = GetQueryParams(tuple);
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NameValueCollection modifiedParams = HttpUtility.ParseQueryString(string.Empty);
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// Подстановка в параметры
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foreach (string key in queryParams.Keys)
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{
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modifiedParams.Set(key, ReplaceSubs(queryParams.Get(key)));
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}
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string endpoint = ReplaceSubs(requestInfo.Url);
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UriBuilder builder = new(endpoint)
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{
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Query = modifiedParams.ToString() ?? string.Empty
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};
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return builder.Uri;
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}
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private HttpRequestMessage CreateMessage(ParamsTuple tuple)
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{
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HttpRequestMessage msg = new()
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{
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RequestUri = BuildUri(tuple),
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Method = new HttpMethod(requestInfo.Method),
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Content = GetContent(tuple)
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};
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msg.Headers.TryAddWithoutValidation(HttpRequestHeader.AcceptCharset.GetName(), Encoding.UTF8.WebName);
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msg.Headers.TryAddWithoutValidation(HttpRequestHeader.AcceptEncoding.GetName(), "gzip");
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// Добавление заголовка авторизации
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if (!string.IsNullOrEmpty(storage.Token))
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msg.Headers.TryAddWithoutValidation(HttpRequestHeader.Authorization.GetName(), $"OAuth {storage.Token}");
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SetCustomHeaders(msg.Headers);
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return msg;
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}
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protected string ReplaceSubs(string str)
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{
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string[] sub = str.GetMatches(@"\{.+?\}");
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foreach (string s in sub)
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{
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if (!subs.TryGetValue(s.ReplaceRegex(@"[\{\}]", string.Empty), out string value))
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throw new Exception($"Не найдена подстановка {s}");
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str = str.Replace(s, value);
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}
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return str;
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}
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protected virtual Dictionary<string, string> GetSubstitutions(ParamsTuple tuple)
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{
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return new Dictionary<string, string>();
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}
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protected virtual NameValueCollection GetQueryParams(ParamsTuple tuple)
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{
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return new NameValueCollection();
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}
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protected virtual HttpContent GetContent(ParamsTuple tuple)
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{
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return null;
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}
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protected virtual void SetCustomHeaders(HttpRequestHeaders headers)
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{
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}
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protected string SerializeJson(object data)
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{
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return JsonConvert.SerializeObject(data, jsonSettings);
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}
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#endregion Вспомогательные функции
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public YRequestBuilder(YandexMusicApi yandex, AuthStorage auth)
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{
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requestInfo = GetType()
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.GetCustomAttributes<YRequestAttribute>()
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.FirstOrDefault();
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if (requestInfo == null)
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throw new NotImplementedException($"Отсутствует атрибут {nameof(YRequestAttribute)}");
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api = yandex;
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storage = auth;
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// Устройство по умолчанию
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device = $"os=CSharp; os_version=; manufacturer=K1llM@n; model=Yandex Music API; clid=; device_id={storage.DeviceId}; uuid=random";
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}
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internal YRequest<ResponseType> Build(ParamsTuple tuple)
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{
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subs = GetSubstitutions(tuple);
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HttpRequestMessage msg = CreateMessage(tuple);
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return new YRequest<ResponseType>(msg, api, storage);
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}
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}
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}
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private Uri BuildUri(TParams tuple)
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{
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var queryParams = GetQueryParams(tuple);
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var modifiedParams = HttpUtility.ParseQueryString(string.Empty);
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foreach (string? key in queryParams)
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if (key != null)
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modifiedParams[key] = ReplaceSubs(queryParams[key]!);
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var endpoint = ReplaceSubs(_requestInfo.Url);
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var builder = new UriBuilder(endpoint) { Query = modifiedParams.ToString() ?? string.Empty };
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return builder.Uri;
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}
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private HttpRequestMessage CreateMessage(TParams tuple)
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{
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var msg = new HttpRequestMessage
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{
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RequestUri = BuildUri(tuple),
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Method = new HttpMethod(_requestInfo.Method),
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Content = GetContent(tuple)
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};
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msg.Headers.TryAddWithoutValidation(HttpRequestHeader.AcceptCharset.GetName(), Encoding.UTF8.WebName);
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msg.Headers.TryAddWithoutValidation(HttpRequestHeader.AcceptEncoding.GetName(), "gzip");
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if (!string.IsNullOrEmpty(storage.Token))
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msg.Headers.TryAddWithoutValidation(HttpRequestHeader.Authorization.GetName(), $"OAuth {storage.Token}");
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SetCustomHeaders(msg.Headers);
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return msg;
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}
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protected string ReplaceSubs(string str)
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{
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var subs = str.GetMatches(@"\{.+?\}");
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foreach (var s in subs)
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{
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var key = s.ReplaceRegex(@"[\{\}]", string.Empty);
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if (!_substitutions.TryGetValue(key, out var value))
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throw new Exception($"Не найдена подстановка {s}");
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str = str.Replace(s, value);
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}
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return str;
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}
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protected virtual Dictionary<string, string> GetSubstitutions(TParams tuple) => [];
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protected virtual NameValueCollection GetQueryParams(TParams tuple) => [];
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protected virtual HttpContent? GetContent(TParams tuple) => null;
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protected virtual void SetCustomHeaders(HttpRequestHeaders headers) { }
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protected string SerializeJson(object data) => JsonSerializer.Serialize(data, _jsonOptions);
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internal YRequest<TResponse> Build(TParams tuple)
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{
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_substitutions = GetSubstitutions(tuple);
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var msg = CreateMessage(tuple);
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return new YRequest<TResponse>(msg, api, storage);
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}
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}
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