private HttpClient GetNewHttpClient() { List<string> proxies = _proxy.GetProxies(); HttpClient client = _httpClientFactory.CreateClient(proxies[_proxyNumber]); client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0"); _proxyNumber = UpdateProxyNumber(); return client; }